I installed libnodave in RedHat8 and downloaded program into PLC with Step7.I want to exchange data between PLC and PC with libnodave.I run the demo program testMPI.c,but output some errors.
Initializing the serial interface and
daveInterface is success,and initializing the MPI adapter is also success. However, initializing a daveConnection has error. If Initializing a daveConnection was success,what the function of daveNewInterface return. I wrote dc =daveNewConnection(di,plcMPI,0,2); /*plcMPI's the MPI's address which value is 2*/ The function
of daveConnectPLC(dc)should return zero if it's succeed.but the function daveConnectPLC(dc)!=0. I couldn't connect to PLC!
Please tell me the why of error. Thanks very much!
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How about the precompiled version of testMPI? Does it work? If not, did you try the options -2,-3,-4? If this still doesn't work, what is the exact order code of your adapter? What is the debug output if you do:
> testMPI -d /dev/ttySx ?
If precompiled testMPI works, but a recompiled version do doesn't, check conditional defines or use the Makefile coming with libnodave.
Thomas
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Thanks to your reply firstly. I run the testMPI demo program's command line is:
testMPI -2 /dev/ttySx.
Initializing the serial interface, daveInterface and the MPI adapter is success,because the function daveInitAdapter(di) return 0.According to the function daveNewConnection(di,int plcMPI,int rack,int slot);I have written the function dc=daveNewConnection(di,2,0,2);I think the error is here,because daceConnectPLC(dc)!=0.
The output is:
IF1 daveConnetPLC() step 4 ends with 4
Couldn't connect to PLC.
expectly your reply! thanks very much!
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testMPI -2 -d /dev/ttySx
the output is:
IF1 enter initAdapter(1).
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() fails.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x40,0x17,
IF1 enter initAdapter(1).
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() fails.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x40,0x17,
IF1 enter initAdapter(1).
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() fails.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x40,0x17,
Couldn't connect to Adapter!.
Please try again. You may also try the option -2 for some adapters.
[root@xl libnodave-0.8.1]# ./testMPI -2 -d /dev/ttyS1
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() success.
I send:
0:0x10,
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 listReachablePartners() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 listReachablePartners() no answer (DLE) from adapter.
daveListReachablePartners List length: 0
ConnectPLC
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 connectPLC(2) no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 connectPLC(2) no answer (DLE) from adapter.
IF1 daveConnectPLC() step 4.
IF1 daveConnectPLC() step 4 ends with 4.
Couldn't connect to PLC.
Please try again. You may also try the option -2 for some adapters.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x00,0x00,
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x00,0x00,
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x00,0x00,
I only know use the options -2 can initializing adadapter successfully.
Do you know the reason that Couldn't connect to PLC?
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Here, not a single reasonable byte comes back from the adapter. initAdapter also fails, even if it is not detected by the code. Make sure the adapter is set to the right baud rate (38400) and disconnect and reconnect it from the PLC to resert it before testing again.
Thomas
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I can't know the meaning of above code.Can you tell me the meaning of these codes? I want to control one output port by one input port. The adapter was set to the right baud rate (38400), but the output is above codes. I want to know what you written the right codes is.I think you are a master in PLCS.Can you give directions to me? Thank you!
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>I can't know the meaning of above code.
>> the output is:
>> IF1 enter initAdapter(1).
>> I send:
>> 0:0x02,
>> readSingle 0 chars. 1st 02
PC sending character/byte 02.
> IF1 initAdapter() no answer (DLE) from >adapter.
PC did not get an answer. The expected answer would have been DLE (hex 10).
> readSingle 0 chars. 1st 02
PC did not get an answer. 0 bytes in buffer. Byte in 1st position of buffer is 02.
> IF1 initAdapter() no answer (DLE) from
>adapter.
PC did not get an answer. The expected answer would have been DLE (hex 10).
> IF1 initAdapter() fails.
initAdapter failed.
> IF1 enter DisconnectAdapter()
PC tries disconnectAdapter because that sometimes can help when an adapter has not been disconnected properly.
> I send:
> 0:0x02,
> I send:
> 0:0x01,0x04,0x02,0x10,0x03,0x14,
> _daveSendWithCRC:
> 0:0x01,0x04,0x02,0x10,0x03,0x14,
Just all the sequences the PC tries on the adapter
>got:
>0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x00,0x00,
This is the first time ANYTHING comes back from the adapter. And it is completely nonsensical compared to what is expected. Hence I guess there is somthing wrong with serial communication.
Thomas
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void usage()
{
printf("Usage: testMPI [-d] [-w] serial port.\n");
printf("-w will try to write to Flag words. It will overwrite FB0 to FB15 (MB0 to MB15) !\n");
printf("-d will produce a lot of debug messages.\n");
printf("-b will run benchmarks. Specify -b and -w to run write benchmarks.\n");
printf("-z will read some SZL list items (diagnostic information).\n");
printf("--szlID will read given SZL ID.\n");
printf("-2 uses a slightly different version of the MPI protocol. Try it, if your Adapter doesn't work.\n");
printf("-3 uses a different version of the MPI protocol. Try it, if your Adapter doesnt work. This is very experimental!");
printf("-4 uses a another different version of the MPI protocol. Try if your Adapter doesnt work.");
printf("-m will run a test for multiple variable reads.\n");
printf("-c will write 0 to the PLC memory used in write tests.\n");
printf("-n will test newly added functions.\n");
printf("-a will read out everything from system state lists(SZLs).\n");
printf("-r tries to put the PLC in run mode.\n");
printf("-s stops the PLC.\n");
printf("-t reads time from PLC clock.\n");
printf("--list show program and data blocks present in PLC.\n");
printf("--listall show program and data blocks in PLC. Includes SFBs and SFCs\n");
printf("--readout read program and data blocks from PLC.\n");
printf("--readoutall reads all program and data blocks from PLC. Includes SFBs and SFCs.\n");
printf("--sync sets the PLC's clock to PC time.\n");
printf("--many=<DB number> reads 2000 bytes from the given DB using daveReadManyBytes().\n");
printf(" The DB should exist and be long enough.\n");
printf("-<number> will set the speed of MPI/PROFIBUS network to this value (in kBaud).\n Default is 187.\n Supported values are 9, 19, 45, 93, 187, 500 and 1500.\n");
printf("--mpi=<number> will use number as the MPI adddres of the PLC. Default is 2.\n");
printf("--mpi2=<number> Use this option to test simultaneous connections to 2 PLCs.\n");
printf(" It will use number as the MPI adddres of the 2nd PLC. Default is no 2nd PLC.\n");
printf(" Most tests are executed with the first PLC. The first read test is also done with\n");
printf(" with the 2nd one to demonstrate that this works.\n");
printf("--local=<number> will set the local MPI adddres to number. Default is 0.\n");
printf("--debug=<number> will set daveDebug to number.\n");
printf("--phone=<number> will call phone number <number> on a standard Hayes compatible modem\n");
printf(" and use the connection to communicate to an S7 connected at to a TS adapter.\n");
printf("--baud=<number> will set baudrate to number. Default is 38400.\n Supported values are 9600, 19200, 38400, 57600, 115200.\n");
#ifdef UNIX_STYLE
printf("Example: testMPI -w /dev/ttyS0\n");
#endif
#ifdef WIN_STYLE
printf("Example: testMPI -w COM1\n");
#endif
}
void wait() {
uc c;
#ifdef UNIX_STYLE
printf("Press return to continue.\n");
read(0,&c,1);
#endif
#ifdef WIN_STYLE
printf("Press return to continue.\n");
getch();
#endif
//#ifdef WIN_STYLE
// printf("Press return to continue.\n");
// scanf("\n"); //somebody else will find out how to read a single CR in win32...
//#endif
}
void readSZL(daveConnection *dc,int id, int index) {
int res, SZLid, indx, SZcount, SZlen,i,j,len;
uc * d,*dd;
uc ddd[3000];
printf("Trying to read SZL-ID %04X index %02X.\n",id,index);
res=daveReadSZL(dc,id,index, ddd);
printf("Function result: %d %s len:%d\n",res,daveStrerror(res),dc->AnswLen);
// _daveDump("Data",ddd,dc->AnswLen);
if ((dc->AnswLen)>=4) {
d=ddd;
dd=ddd;
dd+=8;
len=dc->AnswLen-8;
SZLid=daveGetU16from(d+0);
indx=daveGetU16from(d+2);
printf("result SZL ID %04X %02X \n",SZLid,indx);
if ((dc->AnswLen)>=8) {
SZlen=daveGetU16from(d+4);
SZcount=daveGetU16from(d+6);
printf("%d elements of %d bytes\n",SZcount,SZlen);
if(len>0){
for (i=0;i<SZcount;i++){
if(len>0){
for (j=0; j<SZlen; j++){
if(len>0){
printf("0x%02X,",*dd);
dd++;
}
len--;
}
printf("\n");
}
}
}
}
}
printf("\n");
}
res=daveReadSZL(dc,0,0,SzlList);
printf("%d %d\n",res,dc->AnswLen);
if ((dc->AnswLen)>=4) {
d=dc->resultPointer;
dd=SzlList;
dd+=8;
SZLid=0x100*d[0]+d[1];
indx=0x100*d[2]+d[3];
printf("result SZL ID %04X %02X \n",SZLid,indx);
if ((dc->AnswLen)>=8) {
SZlen=0x100*d[4]+d[5];
SZcount=0x100*d[6]+d[7];
printf("%d elements of %d bytes\n",SZcount,SZlen);
for (i=0;i<SZcount;i++){
rid=*(dd+1)+256*(*dd);
rind=0;
while (argv[adrPos][0]=='-') {
if (strncmp(argv[adrPos],"--debug=",8)==0) {
daveSetDebug(atol(argv[adrPos]+8));
printf("setting debug to: 0x%lx\n",atol(argv[adrPos]+8));
} else if (strcmp(argv[adrPos],"-d")==0) {
daveSetDebug(daveDebugAll);
} else
if (strcmp(argv[adrPos],"-s")==0) {
doStop=1;
} else
if (strcmp(argv[adrPos],"-t")==0) {
doReadTime=1;
} else
if (strcmp(argv[adrPos],"-r")==0) {
doRun=1;
} else
if (strcmp(argv[adrPos],"-w")==0) {
doWrite=1;
} else
if (strcmp(argv[adrPos],"-b")==0) {
doBenchmark=1;
} else
if (strncmp(argv[adrPos],"--readoutall",12)==0) {
doReadout=1;
doSFBandSFC=1;
} else
if (strcmp(argv[adrPos],"-e")==0) {
doExperimental=1;
} else if (strncmp(argv[adrPos],"--readout",9)==0) {
doReadout=1;
} else if (strncmp(argv[adrPos],"--headers",9)==0) {
doGetHeaders=1;
} else if (strncmp(argv[adrPos],"--many=",7)==0) {
aLongDB=atol(argv[adrPos]+7);
doTestMany=1;
} else if (strncmp(argv[adrPos],"--listall",9)==0) {
doListall=1;
doList=1;
} else if (strncmp(argv[adrPos],"--list",6)==0) {
doList=1;
} else
if (strncmp(argv[adrPos],"--local=",8)==0) {
localMPI=atol(argv[adrPos]+8);
printf("setting local MPI address to:%d\n",localMPI);
} else
if (strncmp(argv[adrPos],"--mpi=",6)==0) {
plcMPI=atol(argv[adrPos]+6);
printf("setting MPI address of PLC to:%d\n",plcMPI);
} else
if (strncmp(argv[adrPos],"--sync",6)==0) {
doSync=1;
} else
if (strncmp(argv[adrPos],"--mpi2=",7)==0) {
plc2MPI=atol(argv[adrPos]+7);
printf("setting MPI address of 2md PLC to:%d\n",plc2MPI);
} else
if (strncmp(argv[adrPos],"--phone=",8)==0) {
phoneNumber=argv[adrPos]+8;
doUsePhone=1;
printf("using phone number %s for connection to PLC.\n",phoneNumber);
} else
if (strncmp(argv[adrPos],"--baud=",7)==0) {
useBaud=argv[adrPos]+7;
printf("setting baud rate to:%s\n",useBaud);
} else
if (strncmp(argv[adrPos],"--wbit=",7)==0) {
wbit=atol(argv[adrPos]+7);
printf("setting bit number:%d\n",wbit);
doWbit=1;
} else
if (strncmp(argv[adrPos],"--szlID=0x",10)==0) {
szlID=strtol(argv[adrPos]+8, NULL, 16);
printf("setting szl ID:%d\n",szlID);
} else
if (strncmp(argv[adrPos],"--szlID=",8)==0) {
szlID=atol(argv[adrPos]+8);
} else
if (strncmp(argv[adrPos],"--index=",8)==0) {
szlIndex=atol(argv[adrPos]+8);
} else
if (strcmp(argv[adrPos],"-z")==0) {
doSZLread=1;
}
else if (strcmp(argv[adrPos],"-a")==0) {
doSZLreadAll=1;
}
else if (strcmp(argv[adrPos],"-m")==0) {
doMultiple=1;
}
else if (strcmp(argv[adrPos],"-c")==0) {
doClear=1;
}
else if (strcmp(argv[adrPos],"-n")==0) {
doNewfunctions=1;
}
else if (strcmp(argv[adrPos],"-2")==0) {
useProto=daveProtoMPI2;
}
else if (strcmp(argv[adrPos],"-3")==0) {
useProto=daveProtoMPI3;
}
else if (strcmp(argv[adrPos],"-4")==0) {
useProto=daveProtoMPI4;
}
else if (strcmp(argv[adrPos],"-9")==0) {
speed=daveSpeed9k;
}
else if (strcmp(argv[adrPos],"-19")==0) {
speed=daveSpeed19k;
}
else if (strcmp(argv[adrPos],"-45")==0) {
speed=daveSpeed45k;
}
else if (strcmp(argv[adrPos],"-93")==0) {
speed=daveSpeed93k;
}
else if (strcmp(argv[adrPos],"-500")==0) {
speed=daveSpeed500k;
}
else if (strcmp(argv[adrPos],"-1500")==0) {
speed=daveSpeed1500k;
}
adrPos++;
if (argc<=adrPos) {
usage();
exit(-1);
}
}
if (doUsePhone)
fds.rfd=setPort(argv[adrPos],useBaud,'N');
else
fds.rfd=setPort(argv[adrPos],useBaud,'O');
fds.wfd=fds.rfd;
initSuccess=0;
if (fds.rfd>0) {
di =daveNewInterface(fds, "IF1", localMPI, useProto, speed);
daveSetTimeout(di,5000000);
if (doUsePhone) {
stdwrite(di,"+++ATH\n",6);
res=stdread(di,buf1,126);
_daveDump("answer from +++ATH",buf1,res);
res=stdread(di,buf1,126);
_daveDump("answer from +++ATH",buf1,res);
stdwrite(di,"ATZ\n",4);
res=stdread(di,buf1,126);
_daveDump("answer from ATZ",buf1,res);
res=stdread(di,buf1,126);
_daveDump("answer from ATZ",buf1,res);
stdwrite(di,"ATX0\n",5);
res=stdread(di,buf1,126);
_daveDump("answer from ATX0",buf1,res);
res=sprintf(buf1,"ATDT%s\n",phoneNumber);
stdwrite(di,buf1,res);
res=stdread(di,buf1,126);
_daveDump("answer from ATX0",buf1,res);
}
for (i=0; i<3; i++) {
if (0==daveInitAdapter(di)) {
initSuccess=1;
a= daveListReachablePartners(di,buf1);
printf("daveListReachablePartners List length: %d\n",a);
if (a>0) {
for (j=0;j<a;j++) {
if (buf1[j]==daveMPIReachable) printf("Device at address:%d\n",j);
}
}
break;
} else daveDisconnectAdapter(di);
}
if (!initSuccess) {
printf("Couldn't connect to Adapter!.\n Please try again. You may also try the option -2 for some adapters.\n");
return -3;
}
dc =daveNewConnection(di,plcMPI,0,0);
if(plc2MPI>=0)
dc2 =daveNewConnection(di,plc2MPI,0,0);
else
dc2=NULL;
printf("ConnectPLC\n");
if (0==daveConnectPLC(dc)) {;
if(plc2MPI>=0) {
if (0==daveConnectPLC(dc2));
} else {
dc2=NULL;
}
if(doWbit) {
a=1;
res=daveWriteBits(dc, daveFlags, 0, wbit, 1,&a);
}
/*
* Some comments about daveReadBytes():
*
* Here we read flags and not data blocks, because we cannot know which data blocks will
* exist in a user's PLC, but flags are always present. To read from start of data block 5
* (DB5.DBB0) use:
* daveReadBytes(dc, daveDB, 5, 0, 16, NULL);
* to read DBD68 and DBW72 use:
* daveReadBytes(dc, daveDB, 5, 68, 6, NULL);
* to read DBD68 and DBW72 into your applications buffer appBuffer use:
* daveReadBytes(dc, daveDB, 5, 68, 6, appBuffer);
* to read DBD68 and DBD78 into your applications buffer appBuffer use:
* daveReadBytes(dc, daveDB, 5, 68, 14, appBuffer);
* this reads DBD68 and DBD78 and everything in between and fills the range
* appBuffer+4 to appBuffer+9 with unwanted bytes, but is much faster than:
* daveReadBytes(dc, daveDB, 5, 68, 4, appBuffer);
* daveReadBytes(dc, daveDB, 5, 78, 4, appBuffer+4);
*/
res=daveReadBytes(dc, daveFlags, 0, 0, 16,NULL);
/*
* daveGetU32(dc); reads a word (2 bytes) from the current buffer position and increments
* an internal pointer by 2, so next daveGetXXX() wil read from the new position behind that
* word.
*/
if (res==0) {
a=daveGetS32(dc);
b=daveGetS32(dc);
c=daveGetS32(dc);
d=daveGetFloat(dc);
if(dc2) {
printf("PLC MPI(%d) FD0: %d\n", dc->MPIAdr, a);
printf("PLC MPI(%d) FD4: %d\n", dc->MPIAdr, b);
printf("PLC MPI(%d) FD8: %d\n", dc->MPIAdr, c);
printf("PLC MPI(%d) FD12: %f\n", dc->MPIAdr, d);
} else {
printf("PLC FD0: %d\n", a);
printf("PLC FD4: %d\n", b);
printf("PLC FD8: %d\n", c);
printf("PLC FD12: %f\n", d);
}
} else
printf("error %d=%s\n", res, daveStrerror(res));
if(doExperimental) {
printf("Trying to read outputs\n");
res=daveReadBytes(dc, daveOutputs, 0, 0, 2,NULL);
printf("function result:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
if (res==0) {
printf("Bytes:");
for (b= 0;b<dc->AnswLen;b++) {
c=daveGetU8(dc);
printf(" %0x, ",c);
}
printf("\n");
}
a=0x01;
printf("Trying to write outputs\n");
res=daveWriteBytes(dc, daveOutputs, 0, 0, 1,&a);
printf("function result:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
// daveDebug=0xffff;
daveSetDebug(daveDebugAll);
res=daveForce200(dc, daveOutputs, 0,0);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
daveSetDebug(0);
res=daveForce200(dc, daveOutputs, 0,1);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
res=daveForce200(dc, daveOutputs, 0,2);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
res=daveForce200(dc, daveOutputs, 0,3);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
res=daveForce200(dc, daveOutputs, 1,4);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
res=daveForce200(dc, daveOutputs, 2,5);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
res=daveForce200(dc, daveOutputs, 3,7);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
printf("Trying to read outputs again\n");
res=daveReadBytes(dc, daveOutputs, 0, 0, 4,NULL);
printf("function result:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
if (res==0) {
printf("Bytes:");
for (b= 0;b<dc->AnswLen;b++) {
c=daveGetU8(dc);
printf(" %0x, ",c);
}
printf("\n");
}
}
if(doNewfunctions) {
saveDebug=daveGetDebug();
printf("Trying to read two consecutive bits from DB11.DBX0.1\n");;
res=daveReadBits(dc, daveDB, 11, 1, 2,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
printf("Trying to read no bit (length 0) from DB17.DBX0.1\n");
res=daveReadBits(dc, daveDB, 17, 1, 0,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
daveSetDebug(daveGetDebug()|daveDebugPDU);
printf("Trying to read a single bit from DB17.DBX0.3\n");
res=daveReadBits(dc, daveDB, 17, 3, 1,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
printf("Trying to read a single bit from E0.2\n");
res=daveReadBits(dc, daveInputs, 0, 2, 1,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
a=1;
printf("Trying to set single bit E0.5\n");
res=daveWriteBits(dc, daveOutputs, 0, 5, 1, &a);
printf("function result:%d=%s\n", res, daveStrerror(res));
printf("Trying to read 1 byte from AAW0\n");
res=daveReadBytes(dc, daveAnaIn, 0, 0, 2,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
a=2341;
printf("Trying to write 1 word (2 bytes) to AAW0\n");
res=daveWriteBytes(dc, daveAnaOut, 0, 0, 2,&a);
printf("function result:%d=%s\n", res, daveStrerror(res));
res=daveExecReadRequest(dc, &p, &rs);
if (doWrite) {
}
daveSetDebug(saveDebug);
}
// daveDebug=daveDebugAll;
if(doSZLread) {
readSZL(dc,306,4);
readSZL(dc,0xB4,0x1024);
readSZL(dc,0x111,0x1);
readSZL(dc,0xD91,0x0);
readSZL(dc,0x232,0x4);
readSZL(dc,0x1A0,0x0);
}
if(szlID!=-1) {
readSZL(dc,szlID,szlIndex);
}
/*
if(doSZLread) {
for (i=0;i<256;i++) {
readSZL(dc,i,0x0);
}
}
*/
if(doSZLreadAll) {
readSZLAll(dc);
}
if(doMultiple) {
printf("Now testing read multiple variables.\n"
"This will read 1 Byte from inputs,\n"
"4 bytes from flags, 2 bytes from DB6\n"
" and other 2 bytes from flags\n");
wait();
davePrepareReadRequest(dc, &p);
daveAddVarToReadRequest(&p,daveInputs,0,0,1);
daveAddVarToReadRequest(&p,daveFlags,0,0,4);
daveAddVarToReadRequest(&p,daveDB,6,20,2);
daveAddVarToReadRequest(&p,daveFlags,0,12,2);
daveAddBitVarToReadRequest(&p, daveFlags, 0, 25 /* 25 is 3.1*/, 1);
res=daveExecReadRequest(dc, &p, &rs);
printf("Input Byte 0 ");
res=daveUseResult(dc, &rs, 0); // first result
if (res==0) {
a=daveGetU8(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
printf("Flag DWord 0 ");
res=daveUseResult(dc, &rs, 1); // 2nd result
if (res==0) {
a=daveGetS16(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
printf("DB 6 Word 20: ");
res=daveUseResult(dc, &rs, 2); // 3rd result
if (res==0) {
a=daveGetS16(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
printf("Flag Word 12: ");
res=daveUseResult(dc, &rs, 3); // 4th result
if (res==0) {
a=daveGetU16(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
printf("Flag F3.1: ");
res=daveUseResult(dc, &rs, 4); // 4th result
if (res==0) {
a=daveGetU8(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
printf("non existing result (we read 5 items, but try to use a 6th one): ");
res=daveUseResult(dc, &rs, 5); // 5th result
if (res==0) {
a=daveGetU16(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
daveFreeResults(&rs);
if (doWrite){
printf("Now testing write multiple variables:\n"
"IB0, FW0, QB0, DB6:DBW20 and DB20:DBD24 in a single multiple write.\n");
wait();
// daveDebug=0xffff;
a=0;
davePrepareWriteRequest(dc, &p);
daveAddVarToWriteRequest(&p,daveInputs,0,0,1,&a);
daveAddVarToWriteRequest(&p,daveFlags,0,4,2,&a);
daveAddVarToWriteRequest(&p,daveOutputs,0,0,2,&a);
daveAddVarToWriteRequest(&p,daveDB,6,20,2,&a);
daveAddVarToWriteRequest(&p,daveDB,20,24,4,&a);
a=1;
daveAddBitVarToWriteRequest(&p, daveFlags, 0, 27 /* 27 is 3.3*/, 1, &a);
res=daveExecWriteRequest(dc, &p, &rs);
printf("Result code for the entire multiple write operation: %d=%s\n",res, daveStrerror(res));
/*
// I could list the single result codes like this, but I want to tell
// which item should have been written, so I do it in 5 individual lines:
for (i=0;i<rs.numResults;i++){
res=rs.results[i].error;
printf("result code from writing item %d: %d=%s\n",i,res,daveStrerror(res));
}
*/
printf("Result code for writing IB0: %d=%s\n",rs.results[0].error, daveStrerror(rs.results[0].error));
printf("Result code for writing FW4: %d=%s\n",rs.results[1].error, daveStrerror(rs.results[1].error));
printf("Result code for writing QB0: %d=%s\n",rs.results[2].error, daveStrerror(rs.results[2].error));
printf("Result code for writing DB6:DBW20: %d=%s\n",rs.results[3].error, daveStrerror(rs.results[3].error));
printf("Result code for writing DB20:DBD24: %d=%s\n",rs.results[4].error, daveStrerror(rs.results[4].error));
printf("Result code for writing F3.3: %d=%s\n",rs.results[5].error, daveStrerror(rs.results[5].error));
/*
* Read back and show the new values, so users may notice the difference:
*/
daveReadBytes(dc,daveFlags,0,0,16,NULL);
a=daveGetU32(dc);
b=daveGetU32(dc);
c=daveGetU32(dc);
d=daveGetFloat(dc);
printf("FD0: %d\n",a);
printf("FD4: %d\n",b);
printf("FD8: %d\n",c);
printf("FD12: %f\n",d);
} // doWrite
}
if(doWrite) {
printf("Now we write back these data after incrementing the integers by 1,2 and 3 and the float by 1.1.\n");
wait();
/*
Attention! you need to daveSwapIed little endian variables before using them as a buffer for
daveWriteBytes() or before copying them into a buffer for daveWriteBytes()!
*/
a=daveSwapIed_32(a+1);
daveWriteBytes(dc,daveFlags,0,0,4,&a);
b=daveSwapIed_32(b+2);
daveWriteBytes(dc,daveFlags,0,4,4,&b);
c=daveSwapIed_32(c+3);
daveWriteBytes(dc,daveFlags,0,8,4,&c);
d=toPLCfloat(d+1.1);
daveWriteBytes(dc,daveFlags,0,12,4,&d);
/*
* Read back and show the new values, so users may notice the difference:
*/
daveReadBytes(dc,daveFlags,0,0,16,NULL);
a=daveGetU32(dc);
b=daveGetU32(dc);
c=daveGetU32(dc);
d=daveGetFloat(dc);
printf("FD0: %d\n",a);
printf("FD4: %d\n",b);
printf("FD8: %d\n",c);
printf("FD12: %f\n",d);
} // doWrite
if(doClear) {
printf("Now writing 0 to the bytes FB0...FB15.\n");
wait();
a=0;
daveWriteBytes(dc,daveFlags,0,0,4,&a);
daveWriteBytes(dc,daveFlags,0,4,4,&a);
daveWriteBytes(dc,daveFlags,0,8,4,&a);
daveWriteBytes(dc,daveFlags,0,12,4,&a);
daveReadBytes(dc,daveFlags,0,0,16,NULL);
a=daveGetU32(dc);
b=daveGetU32(dc);
c=daveGetU32(dc);
d=daveGetFloat(dc);
printf("FD0: %d\n",a);
printf("FD4: %d\n",b);
printf("FD8: %d\n",c);
printf("FD12: %f\n",d);
} // doClear
if(doStop) {
daveStop(dc);
}
if(doRun) {
daveStart(dc);
}
if(doList||doReadout) { // if readout is not set, loadBlocksOfType will only ist block names
daveListBlocks(dc,NULL);
loadBlocksOfType(dc, daveBlockType_OB, doReadout);
loadBlocksOfType(dc, daveBlockType_FB, doReadout);
loadBlocksOfType(dc, daveBlockType_FC, doReadout);
loadBlocksOfType(dc, daveBlockType_DB, doReadout);
loadBlocksOfType(dc, daveBlockType_SDB, doReadout);
if ((doSFBandSFC) ||(doListall)){
loadBlocksOfType(dc, daveBlockType_SFB, doReadout);
loadBlocksOfType(dc, daveBlockType_SFC, doReadout);
}
}
if(doTestMany) {
printf("read a long block of bytes from DB%d\n",aLongDB);
buffer=malloc(2000);
// res=daveReadBytes(dc,daveDB,aLongDB,0,2000,buffer);
// printf("Result code: %04x=%s\n",res, daveStrerror(res));
res=daveReadManyBytes(dc,daveDB,aLongDB,0,2000,buffer);
printf("Result code: %04x=%s\n",res, daveStrerror(res));
} // doTestMany
printf("Now disconnecting\n");
daveDisconnectPLC(dc);
daveFree(dc);
if(dc2) {
daveDisconnectPLC(dc2);
daveFree(dc);
}
daveDisconnectAdapter(di);
daveFree(di);
return 0;
} else {
printf("Couldn't connect to PLC.\n Please try again. You may also try the option -2 for some adapters.\n");
daveDisconnectAdapter(di);
daveDisconnectAdapter(di);
daveDisconnectAdapter(di);
return -2;
}
} else {
printf("Couldn't open serial port %s\n",argv[adrPos]);
return -1;
}
}
Tomorrow i give the
testMPI -d /dev/ttySx and
testMPI -2 -d /dev/ttySx's debug output information ,becuse the PLCS isn't here.
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Sorry, but what do you think it is good for to post the source code here? If it hasn't been modified, everyone can get it from the download server.
If it has been modified, do you think I will check it line by line what you did modify?
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My settings for MPI speed is daveSpeed187k, local MPI is 0 and plcMPI is 2.The adapter was set to the right baud rate (38400).
Sorry I wrote incorrectly testMPI -2 -d /dev/ttySx
the output should is:
./testMPI -d -2 /dev/ttyS0
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() success.
I send:
0:0x10,
I send:
0:0x02,
readSingle 1 chars. 1st 66
IF1 listReachablePartners() no answer (DLE) from adapter.
readSingle 1 chars. 1st FFFFFF80
IF1 listReachablePartners() no answer (DLE) from adapter.
daveListReachablePartners List length: 0
ConnectPLC
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 connectPLC(2) no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 connectPLC(2) no answer (DLE) from adapter.
IF1 daveConnectPLC() step 4.
IF1 daveConnectPLC() step 4 ends with 4.
Couldn't connect to PLC.
Please try again. You may also try the option -2 for some adapters.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x66,0x80,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x00,
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x66,0x80,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x00,
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x66,0x80,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x00,
Your meaning is whether initAdapter also fails, even if it is not detected by the code.
I want to konw whether tests can succeed using the adapter 6ES7 972-0CA23-0XA0 .
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? Your meaning is whether initAdapter also
? fails, even if it is not detected by the code.
Yes, it does. What if you do try without the -2?
? I want to konw whether tests can succeed using
? the adapter 6ES7 972-0CA23-0XA0
I do not have this adapter myself but I got mail from people who tested it positively.
Three things:
1. Use the precompiled test programs. They should work on each an every Linux for i386 machines. No differences between RedHat/SuSe/Debian...
2. If a test failed, disconnect the MPI adapter from the CPU to reset it before doing a nother test.
3. If you post debug output, make it somewhat shorter. In all these tests, you cann leave away everything after:
? daveListReachablePartners List length: 0
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I didn't modify source code,The output as follows:
What if you do try without the -2?
./testMPI -d /dev/ttyS0
the output is:
IF1 enter initAdapter(1).
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() fails.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x20,
./testMPI -d -2 /dev/ttyS0
the output is:
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() success.
I send:
0:0x10,
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 listReachablePartners() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 listReachablePartners() no answer (DLE) from adapter.
daveListReachablePartners List length: 0
ConnectPLC
The two different version of the MPI protocol initAdapter also fails.
disconnect the MPI adapter from the CPU to reset it before doing a nother test.
If i break from MPI adapter from CPU,I want to know how to reset the MPI adapter.
Hence there is somthing wrong with serial
communication, that is to say,is there something wrong with connection between MPI adapter and CPU?
lijasmine from China
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All what I can see here is that in both cases (with and without -2), no answers come from the adapter in time. In the first case, a nonsensical answer comes after very long time.
? If i break from MPI adapter from CPU,I want to
? know how to reset the MPI adapter.
There is nothing to do. When you disconnect it from the CPU, it gets no more energy. When you plug it in again, it does a reset.
? Hence there is somthing wrong with serial
? communication, that is to say,is there
? something wrong with connection between MPI
? adapter and CPU?
No, between adapter and PC.
I fear we cannot make any progress that way.
If anybody reads this list and can confirm that libnodave works for him with an adapter 6ES7 972-0CA23-0XA0, this would be helpful.
Do you have Step7 on a windows computer?
If so, just try to run testMPI.exe on it (after closing step7).
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I have Step7 on a windows computer, and I have downloaded programs into PLC in windows OS.Then I exchanged data between PC and PLC in Linux OS.
Ok,I install libnodave in Windows OS firstly.
Do you have Step7 on a windows computer?
If so, just try to run testMPI.exe on it (after closing step7).
Does running testMPI.exe depend on step7?
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After disconnecting the MPI adapter from the CPU and reset it,I run in both cases (with and without -2),the output codes is the same to above.there is
something wrong with connection between adapter and PC.
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I installed libnodave in RedHat8 and downloaded program into PLC with Step7.I want to exchange data between PLC and PC with libnodave.I run the demo program testMPI.c,but output some errors.
Initializing the serial interface and
daveInterface is success,and initializing the MPI adapter is also success. However, initializing a daveConnection has error. If Initializing a daveConnection was success,what the function of daveNewInterface return. I wrote dc =daveNewConnection(di,plcMPI,0,2); /*plcMPI's the MPI's address which value is 2*/ The function
of daveConnectPLC(dc)should return zero if it's succeed.but the function daveConnectPLC(dc)!=0. I couldn't connect to PLC!
Please tell me the why of error. Thanks very much!
How about the precompiled version of testMPI? Does it work? If not, did you try the options -2,-3,-4? If this still doesn't work, what is the exact order code of your adapter? What is the debug output if you do:
> testMPI -d /dev/ttySx ?
If precompiled testMPI works, but a recompiled version do doesn't, check conditional defines or use the Makefile coming with libnodave.
Thomas
Thanks to your reply firstly. I run the testMPI demo program's command line is:
testMPI -2 /dev/ttySx.
Initializing the serial interface, daveInterface and the MPI adapter is success,because the function daveInitAdapter(di) return 0.According to the function daveNewConnection(di,int plcMPI,int rack,int slot);I have written the function dc=daveNewConnection(di,2,0,2);I think the error is here,because daceConnectPLC(dc)!=0.
The output is:
IF1 daveConnetPLC() step 4 ends with 4
Couldn't connect to PLC.
expectly your reply! thanks very much!
The MPI adapter 6ES7 972-0CA23-0XA0
What is the debug output if you do:
testMPI -d /dev/ttySx ?
What is the debug output if you do:
testMPI -2 -d /dev/ttySx ?
6ES7 972-0CA23-0XA0 is known to work.
What are your settings for MPI speed and local MPI (of the PC)?
Thomas
testMPI -2 -d /dev/ttySx
the output is:
IF1 enter initAdapter(1).
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() fails.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x40,0x17,
IF1 enter initAdapter(1).
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() fails.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x40,0x17,
IF1 enter initAdapter(1).
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() fails.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x40,0x17,
Couldn't connect to Adapter!.
Please try again. You may also try the option -2 for some adapters.
[root@xl libnodave-0.8.1]# ./testMPI -2 -d /dev/ttyS1
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() success.
I send:
0:0x10,
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 listReachablePartners() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 listReachablePartners() no answer (DLE) from adapter.
daveListReachablePartners List length: 0
ConnectPLC
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 connectPLC(2) no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 connectPLC(2) no answer (DLE) from adapter.
IF1 daveConnectPLC() step 4.
IF1 daveConnectPLC() step 4 ends with 4.
Couldn't connect to PLC.
Please try again. You may also try the option -2 for some adapters.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x00,0x00,
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x00,0x00,
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x00,0x00,
I only know use the options -2 can initializing adadapter successfully.
Do you know the reason that Couldn't connect to PLC?
Here, not a single reasonable byte comes back from the adapter. initAdapter also fails, even if it is not detected by the code. Make sure the adapter is set to the right baud rate (38400) and disconnect and reconnect it from the PLC to resert it before testing again.
Thomas
I can't know the meaning of above code.Can you tell me the meaning of these codes? I want to control one output port by one input port. The adapter was set to the right baud rate (38400), but the output is above codes. I want to know what you written the right codes is.I think you are a master in PLCS.Can you give directions to me? Thank you!
>I can't know the meaning of above code.
>> the output is:
>> IF1 enter initAdapter(1).
>> I send:
>> 0:0x02,
>> readSingle 0 chars. 1st 02
PC sending character/byte 02.
> IF1 initAdapter() no answer (DLE) from >adapter.
PC did not get an answer. The expected answer would have been DLE (hex 10).
> readSingle 0 chars. 1st 02
PC did not get an answer. 0 bytes in buffer. Byte in 1st position of buffer is 02.
> IF1 initAdapter() no answer (DLE) from
>adapter.
PC did not get an answer. The expected answer would have been DLE (hex 10).
> IF1 initAdapter() fails.
initAdapter failed.
> IF1 enter DisconnectAdapter()
PC tries disconnectAdapter because that sometimes can help when an adapter has not been disconnected properly.
> I send:
> 0:0x02,
> I send:
> 0:0x01,0x04,0x02,0x10,0x03,0x14,
> _daveSendWithCRC:
> 0:0x01,0x04,0x02,0x10,0x03,0x14,
Just all the sequences the PC tries on the adapter
>got:
>0:0x00,0x00,0x00,0x00,0x00,0x20,0x12,0x00,0x00,0x00,
This is the first time ANYTHING comes back from the adapter. And it is completely nonsensical compared to what is expected. Hence I guess there is somthing wrong with serial communication.
Thomas
I tried to cite from the output using the "greater" sign as in email.
Unfortunately something converted it to HTML.
Thomas
Thanks
These two days my computer can't online until this night.The source of testMPI.c is:
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "nodave.h"
#include "setport.h"
#ifdef LINUX
#include <unistd.h>
#include <sys/time.h>
#include <fcntl.h>
#define UNIX_STYLE
#endif
#ifdef BCCWIN
#include <time.h>
void usage(void);
void wait(void);
#define WIN_STYLE
#endif
void usage()
{
printf("Usage: testMPI [-d] [-w] serial port.\n");
printf("-w will try to write to Flag words. It will overwrite FB0 to FB15 (MB0 to MB15) !\n");
printf("-d will produce a lot of debug messages.\n");
printf("-b will run benchmarks. Specify -b and -w to run write benchmarks.\n");
printf("-z will read some SZL list items (diagnostic information).\n");
printf("--szlID will read given SZL ID.\n");
printf("-2 uses a slightly different version of the MPI protocol. Try it, if your Adapter doesn't work.\n");
printf("-3 uses a different version of the MPI protocol. Try it, if your Adapter doesnt work. This is very experimental!");
printf("-4 uses a another different version of the MPI protocol. Try if your Adapter doesnt work.");
printf("-m will run a test for multiple variable reads.\n");
printf("-c will write 0 to the PLC memory used in write tests.\n");
printf("-n will test newly added functions.\n");
printf("-a will read out everything from system state lists(SZLs).\n");
printf("-r tries to put the PLC in run mode.\n");
printf("-s stops the PLC.\n");
printf("-t reads time from PLC clock.\n");
printf("--list show program and data blocks present in PLC.\n");
printf("--listall show program and data blocks in PLC. Includes SFBs and SFCs\n");
printf("--readout read program and data blocks from PLC.\n");
printf("--readoutall reads all program and data blocks from PLC. Includes SFBs and SFCs.\n");
printf("--sync sets the PLC's clock to PC time.\n");
printf("--many=<DB number> reads 2000 bytes from the given DB using daveReadManyBytes().\n");
printf(" The DB should exist and be long enough.\n");
printf("-<number> will set the speed of MPI/PROFIBUS network to this value (in kBaud).\n Default is 187.\n Supported values are 9, 19, 45, 93, 187, 500 and 1500.\n");
printf("--mpi=<number> will use number as the MPI adddres of the PLC. Default is 2.\n");
printf("--mpi2=<number> Use this option to test simultaneous connections to 2 PLCs.\n");
printf(" It will use number as the MPI adddres of the 2nd PLC. Default is no 2nd PLC.\n");
printf(" Most tests are executed with the first PLC. The first read test is also done with\n");
printf(" with the 2nd one to demonstrate that this works.\n");
printf("--local=<number> will set the local MPI adddres to number. Default is 0.\n");
printf("--debug=<number> will set daveDebug to number.\n");
printf("--phone=<number> will call phone number <number> on a standard Hayes compatible modem\n");
printf(" and use the connection to communicate to an S7 connected at to a TS adapter.\n");
printf("--baud=<number> will set baudrate to number. Default is 38400.\n Supported values are 9600, 19200, 38400, 57600, 115200.\n");
#ifdef UNIX_STYLE
printf("Example: testMPI -w /dev/ttyS0\n");
#endif
#ifdef WIN_STYLE
printf("Example: testMPI -w COM1\n");
#endif
}
void wait() {
uc c;
#ifdef UNIX_STYLE
printf("Press return to continue.\n");
read(0,&c,1);
#endif
#ifdef WIN_STYLE
printf("Press return to continue.\n");
getch();
#endif
//#ifdef WIN_STYLE
// printf("Press return to continue.\n");
// scanf("\n"); //somebody else will find out how to read a single CR in win32...
//#endif
}
void readSZL(daveConnection *dc,int id, int index) {
int res, SZLid, indx, SZcount, SZlen,i,j,len;
uc * d,*dd;
uc ddd[3000];
printf("Trying to read SZL-ID %04X index %02X.\n",id,index);
res=daveReadSZL(dc,id,index, ddd);
printf("Function result: %d %s len:%d\n",res,daveStrerror(res),dc->AnswLen);
// _daveDump("Data",ddd,dc->AnswLen);
if ((dc->AnswLen)>=4) {
d=ddd;
dd=ddd;
dd+=8;
len=dc->AnswLen-8;
SZLid=daveGetU16from(d+0);
indx=daveGetU16from(d+2);
printf("result SZL ID %04X %02X \n",SZLid,indx);
if ((dc->AnswLen)>=8) {
SZlen=daveGetU16from(d+4);
SZcount=daveGetU16from(d+6);
printf("%d elements of %d bytes\n",SZcount,SZlen);
if(len>0){
for (i=0;i<SZcount;i++){
if(len>0){
for (j=0; j<SZlen; j++){
if(len>0){
printf("0x%02X,",*dd);
dd++;
}
len--;
}
printf("\n");
}
}
}
}
}
printf("\n");
}
void readSZLAll(daveConnection *dc) {
uc SzlList[1000];
int res, SZLid, indx, SZcount, SZlen,i,j, rid, rind;
uc * d,*dd;
res=daveReadSZL(dc,0,0,SzlList);
printf("%d %d\n",res,dc->AnswLen);
if ((dc->AnswLen)>=4) {
d=dc->resultPointer;
dd=SzlList;
dd+=8;
SZLid=0x100*d[0]+d[1];
indx=0x100*d[2]+d[3];
printf("result SZL ID %04X %02X \n",SZLid,indx);
if ((dc->AnswLen)>=8) {
SZlen=0x100*d[4]+d[5];
SZcount=0x100*d[6]+d[7];
printf("%d elements of %d bytes\n",SZcount,SZlen);
for (i=0;i<SZcount;i++){
rid=*(dd+1)+256*(*dd);
rind=0;
printf("\nID:%04X Index:%02X\n",rid,rind);
readSZL(dc, rid, rind);
for (j=0; j<SZlen; j++){
printf("%02X,",*dd);
dd++;
}
printf("\nID:%04X Index:%02X\n",rid,rind);
}
}
}
printf("\n");
}
void loadBlocksOfType(daveConnection * dc, int blockType, int doReadout) {
int j, i, uploadID, len, more;
#ifdef UNIX_STYLE
int fd;
#endif
#ifdef WIN_STYLE
HANDLE fd;
unsigned long res;
#endif
char blockName [20];
uc blockBuffer[20000],*bb;
daveBlockEntry dbe[256];
j=daveListBlocksOfType(dc, blockType, dbe);
if (j<0) {
printf("error %d = %s\n",-j,daveStrerror(-j));
return;
}
printf("%d blocks of type %s\n",j,daveBlockName(blockType));
for (i=0; i<j; i++) {
printf("%s%d %d %d\n",
daveBlockName(blockType),
dbe[i].number, dbe[i].type[0],dbe[i].type[1]);
bb=blockBuffer;
if(doReadout) {
len=0;
if (0==initUpload(dc, blockType, dbe[i].number, &uploadID)) {
do {
doUpload(dc,&more,&bb,&len,uploadID);
} while (more);
sprintf(blockName,"%s%d.mc7",daveBlockName(blockType), dbe[i].number);
#ifdef UNIX_STYLE
fd=open(blockName,O_RDWR|O_CREAT|O_TRUNC,0644);
write(fd, blockBuffer, len);
close(fd);
#endif
#ifdef WIN_STYLE
fd = CreateFile(blockName,
GENERIC_WRITE, 0, 0, 2,
FILE_FLAG_WRITE_THROUGH, 0);
WriteFile(fd, blockBuffer, len, &res, NULL);
CloseHandle(fd);
#endif
endUpload(dc,uploadID);
}
}
}
}
void getBlockHeadersOfType(daveConnection * dc, int blockType) {
int j, i;
daveBlockEntry dbe[256];
j=daveListBlocksOfType(dc, blockType, dbe);
if (j<0) {
printf("error %d = %s\n",-j,daveStrerror(-j));
return;
}
printf("%d blocks of type %s\n",j,daveBlockName(blockType));
for (i=0; i<j; i++) {
printf("%s%d %d %d\n",
daveBlockName(blockType),
dbe[i].number, dbe[i].type[0],dbe[i].type[1]);
daveGetBlockInfo(dc, NULL, blockType,dbe[i].number);
_daveDump("header",dc->_resultPointer,78);
}
}
#include "benchmark.c"
int main(int argc, char **argv) {
int i,j, a,b,c, adrPos, doWrite, doBenchmark,
doSZLread, doMultiple, doClear, doNewfunctions, doWbit,
initSuccess, doSZLreadAll, doRun, doStop, doReadout, doList, doListall, doSFBandSFC,
doExperimental, doSync, doReadTime, doGetHeaders, doTestMany, doUsePhone,
aLongDB,
saveDebug,
res, useProto, speed, localMPI, plcMPI, plc2MPI, wbit, szlID, szlIndex;
PDU p;
float d;
char buf1 [davePartnerListSize];
char * useBaud="38400";
char * phoneNumber;
uc * buffer;
daveInterface * di;
daveConnection * dc, *dc2;
_daveOSserialType fds;
daveResultSet rs;
adrPos=1;
doWrite=0;
doBenchmark=0;
doSZLread=0;
doSZLreadAll=0;
doMultiple=0;
doClear=0;
doNewfunctions=0;
doExperimental=0;
doWbit=0;
doRun=0;
doStop=0;
doReadout=0;
doList=0;
doListall=0;
doSFBandSFC=0;
szlID=-1;
szlIndex=-0;
doSync=0;
doReadTime=0;
doGetHeaders=0;
doTestMany=0;
doUsePhone=0;
useProto=daveProtoMPI;
speed=daveSpeed187k;
localMPI=0;
plcMPI=2;
plc2MPI=-1;
if (argc<2) {
usage();
exit(-1);
}
while (argv[adrPos][0]=='-') {
if (strncmp(argv[adrPos],"--debug=",8)==0) {
daveSetDebug(atol(argv[adrPos]+8));
printf("setting debug to: 0x%lx\n",atol(argv[adrPos]+8));
} else if (strcmp(argv[adrPos],"-d")==0) {
daveSetDebug(daveDebugAll);
} else
if (strcmp(argv[adrPos],"-s")==0) {
doStop=1;
} else
if (strcmp(argv[adrPos],"-t")==0) {
doReadTime=1;
} else
if (strcmp(argv[adrPos],"-r")==0) {
doRun=1;
} else
if (strcmp(argv[adrPos],"-w")==0) {
doWrite=1;
} else
if (strcmp(argv[adrPos],"-b")==0) {
doBenchmark=1;
} else
if (strncmp(argv[adrPos],"--readoutall",12)==0) {
doReadout=1;
doSFBandSFC=1;
} else
if (strcmp(argv[adrPos],"-e")==0) {
doExperimental=1;
} else if (strncmp(argv[adrPos],"--readout",9)==0) {
doReadout=1;
} else if (strncmp(argv[adrPos],"--headers",9)==0) {
doGetHeaders=1;
} else if (strncmp(argv[adrPos],"--many=",7)==0) {
aLongDB=atol(argv[adrPos]+7);
doTestMany=1;
} else if (strncmp(argv[adrPos],"--listall",9)==0) {
doListall=1;
doList=1;
} else if (strncmp(argv[adrPos],"--list",6)==0) {
doList=1;
} else
if (strncmp(argv[adrPos],"--local=",8)==0) {
localMPI=atol(argv[adrPos]+8);
printf("setting local MPI address to:%d\n",localMPI);
} else
if (strncmp(argv[adrPos],"--mpi=",6)==0) {
plcMPI=atol(argv[adrPos]+6);
printf("setting MPI address of PLC to:%d\n",plcMPI);
} else
if (strncmp(argv[adrPos],"--sync",6)==0) {
doSync=1;
} else
if (strncmp(argv[adrPos],"--mpi2=",7)==0) {
plc2MPI=atol(argv[adrPos]+7);
printf("setting MPI address of 2md PLC to:%d\n",plc2MPI);
} else
if (strncmp(argv[adrPos],"--phone=",8)==0) {
phoneNumber=argv[adrPos]+8;
doUsePhone=1;
printf("using phone number %s for connection to PLC.\n",phoneNumber);
} else
if (strncmp(argv[adrPos],"--baud=",7)==0) {
useBaud=argv[adrPos]+7;
printf("setting baud rate to:%s\n",useBaud);
} else
if (strncmp(argv[adrPos],"--wbit=",7)==0) {
wbit=atol(argv[adrPos]+7);
printf("setting bit number:%d\n",wbit);
doWbit=1;
} else
if (strncmp(argv[adrPos],"--szlID=0x",10)==0) {
szlID=strtol(argv[adrPos]+8, NULL, 16);
printf("setting szl ID:%d\n",szlID);
} else
if (strncmp(argv[adrPos],"--szlID=",8)==0) {
szlID=atol(argv[adrPos]+8);
} else
if (strncmp(argv[adrPos],"--index=",8)==0) {
szlIndex=atol(argv[adrPos]+8);
} else
if (strcmp(argv[adrPos],"-z")==0) {
doSZLread=1;
}
else if (strcmp(argv[adrPos],"-a")==0) {
doSZLreadAll=1;
}
else if (strcmp(argv[adrPos],"-m")==0) {
doMultiple=1;
}
else if (strcmp(argv[adrPos],"-c")==0) {
doClear=1;
}
else if (strcmp(argv[adrPos],"-n")==0) {
doNewfunctions=1;
}
else if (strcmp(argv[adrPos],"-2")==0) {
useProto=daveProtoMPI2;
}
else if (strcmp(argv[adrPos],"-3")==0) {
useProto=daveProtoMPI3;
}
else if (strcmp(argv[adrPos],"-4")==0) {
useProto=daveProtoMPI4;
}
else if (strcmp(argv[adrPos],"-9")==0) {
speed=daveSpeed9k;
}
else if (strcmp(argv[adrPos],"-19")==0) {
speed=daveSpeed19k;
}
else if (strcmp(argv[adrPos],"-45")==0) {
speed=daveSpeed45k;
}
else if (strcmp(argv[adrPos],"-93")==0) {
speed=daveSpeed93k;
}
else if (strcmp(argv[adrPos],"-500")==0) {
speed=daveSpeed500k;
}
else if (strcmp(argv[adrPos],"-1500")==0) {
speed=daveSpeed1500k;
}
adrPos++;
if (argc<=adrPos) {
usage();
exit(-1);
}
}
if (doUsePhone)
fds.rfd=setPort(argv[adrPos],useBaud,'N');
else
fds.rfd=setPort(argv[adrPos],useBaud,'O');
fds.wfd=fds.rfd;
initSuccess=0;
if (fds.rfd>0) {
di =daveNewInterface(fds, "IF1", localMPI, useProto, speed);
daveSetTimeout(di,5000000);
if (doUsePhone) {
stdwrite(di,"+++ATH\n",6);
res=stdread(di,buf1,126);
_daveDump("answer from +++ATH",buf1,res);
res=stdread(di,buf1,126);
_daveDump("answer from +++ATH",buf1,res);
stdwrite(di,"ATZ\n",4);
res=stdread(di,buf1,126);
_daveDump("answer from ATZ",buf1,res);
res=stdread(di,buf1,126);
_daveDump("answer from ATZ",buf1,res);
stdwrite(di,"ATX0\n",5);
res=stdread(di,buf1,126);
_daveDump("answer from ATX0",buf1,res);
res=sprintf(buf1,"ATDT%s\n",phoneNumber);
stdwrite(di,buf1,res);
res=stdread(di,buf1,126);
_daveDump("answer from ATX0",buf1,res);
}
for (i=0; i<3; i++) {
if (0==daveInitAdapter(di)) {
initSuccess=1;
a= daveListReachablePartners(di,buf1);
printf("daveListReachablePartners List length: %d\n",a);
if (a>0) {
for (j=0;j<a;j++) {
if (buf1[j]==daveMPIReachable) printf("Device at address:%d\n",j);
}
}
break;
} else daveDisconnectAdapter(di);
}
if (!initSuccess) {
printf("Couldn't connect to Adapter!.\n Please try again. You may also try the option -2 for some adapters.\n");
return -3;
}
dc =daveNewConnection(di,plcMPI,0,0);
if(plc2MPI>=0)
dc2 =daveNewConnection(di,plc2MPI,0,0);
else
dc2=NULL;
printf("ConnectPLC\n");
if (0==daveConnectPLC(dc)) {;
if(plc2MPI>=0) {
if (0==daveConnectPLC(dc2));
} else {
dc2=NULL;
}
if(doWbit) {
a=1;
res=daveWriteBits(dc, daveFlags, 0, wbit, 1,&a);
}
/*
* Some comments about daveReadBytes():
*
* Here we read flags and not data blocks, because we cannot know which data blocks will
* exist in a user's PLC, but flags are always present. To read from start of data block 5
* (DB5.DBB0) use:
* daveReadBytes(dc, daveDB, 5, 0, 16, NULL);
* to read DBD68 and DBW72 use:
* daveReadBytes(dc, daveDB, 5, 68, 6, NULL);
* to read DBD68 and DBW72 into your applications buffer appBuffer use:
* daveReadBytes(dc, daveDB, 5, 68, 6, appBuffer);
* to read DBD68 and DBD78 into your applications buffer appBuffer use:
* daveReadBytes(dc, daveDB, 5, 68, 14, appBuffer);
* this reads DBD68 and DBD78 and everything in between and fills the range
* appBuffer+4 to appBuffer+9 with unwanted bytes, but is much faster than:
* daveReadBytes(dc, daveDB, 5, 68, 4, appBuffer);
* daveReadBytes(dc, daveDB, 5, 78, 4, appBuffer+4);
*/
res=daveReadBytes(dc, daveFlags, 0, 0, 16,NULL);
/*
* daveGetU32(dc); reads a word (2 bytes) from the current buffer position and increments
* an internal pointer by 2, so next daveGetXXX() wil read from the new position behind that
* word.
*/
if (res==0) {
a=daveGetS32(dc);
b=daveGetS32(dc);
c=daveGetS32(dc);
d=daveGetFloat(dc);
if(dc2) {
printf("PLC MPI(%d) FD0: %d\n", dc->MPIAdr, a);
printf("PLC MPI(%d) FD4: %d\n", dc->MPIAdr, b);
printf("PLC MPI(%d) FD8: %d\n", dc->MPIAdr, c);
printf("PLC MPI(%d) FD12: %f\n", dc->MPIAdr, d);
} else {
printf("PLC FD0: %d\n", a);
printf("PLC FD4: %d\n", b);
printf("PLC FD8: %d\n", c);
printf("PLC FD12: %f\n", d);
}
} else
printf("error %d=%s\n", res, daveStrerror(res));
if(dc2) {
res=daveReadBytes(dc2, daveFlags, 0, 0, 16,NULL);
if (res==0) {
a=daveGetS32(dc2);
b=daveGetS32(dc2);
c=daveGetS32(dc2);
d=daveGetFloat(dc2);
printf("PLC MPI(%d) FD0: %d\n", dc2->MPIAdr, a);
printf("PLC MPI(%d) FD4: %d\n", dc2->MPIAdr, b);
printf("PLC MPI(%d) FD8: %d\n", dc2->MPIAdr, c);
printf("PLC MPI(%d) FD12: %f\n", dc2->MPIAdr, d);
} else
printf("error %d=%s\n", res, daveStrerror(res));
}
/*
saveDebug=daveGetDebug();
daveSetDebug(daveDebugAll);
res=daveGetBlockInfo(dc, NULL, daveBlockType_SFC, 0);
daveSetDebug(saveDebug);
*/
if(doExperimental) {
printf("Trying to read outputs\n");
res=daveReadBytes(dc, daveOutputs, 0, 0, 2,NULL);
printf("function result:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
if (res==0) {
printf("Bytes:");
for (b= 0;b<dc->AnswLen;b++) {
c=daveGetU8(dc);
printf(" %0x, ",c);
}
printf("\n");
}
a=0x01;
printf("Trying to write outputs\n");
res=daveWriteBytes(dc, daveOutputs, 0, 0, 1,&a);
printf("function result:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
// daveDebug=0xffff;
daveSetDebug(daveDebugAll);
res=daveForce200(dc, daveOutputs, 0,0);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
daveSetDebug(0);
res=daveForce200(dc, daveOutputs, 0,1);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
res=daveForce200(dc, daveOutputs, 0,2);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
res=daveForce200(dc, daveOutputs, 0,3);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
res=daveForce200(dc, daveOutputs, 1,4);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
res=daveForce200(dc, daveOutputs, 2,5);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
res=daveForce200(dc, daveOutputs, 3,7);
printf("function result of force:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
wait();
printf("Trying to read outputs again\n");
res=daveReadBytes(dc, daveOutputs, 0, 0, 4,NULL);
printf("function result:%d=%s length:%d\n", res, daveStrerror(res),dc->AnswLen);
if (res==0) {
printf("Bytes:");
for (b= 0;b<dc->AnswLen;b++) {
c=daveGetU8(dc);
printf(" %0x, ",c);
}
printf("\n");
}
}
if(doNewfunctions) {
saveDebug=daveGetDebug();
printf("Trying to read two consecutive bits from DB11.DBX0.1\n");;
res=daveReadBits(dc, daveDB, 11, 1, 2,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
printf("Trying to read no bit (length 0) from DB17.DBX0.1\n");
res=daveReadBits(dc, daveDB, 17, 1, 0,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
daveSetDebug(daveGetDebug()|daveDebugPDU);
printf("Trying to read a single bit from DB17.DBX0.3\n");
res=daveReadBits(dc, daveDB, 17, 3, 1,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
printf("Trying to read a single bit from E0.2\n");
res=daveReadBits(dc, daveInputs, 0, 2, 1,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
a=0;
printf("Writing 0 to EB0\n");
res=daveWriteBytes(dc, daveOutputs, 0, 0, 1, &a);
a=1;
printf("Trying to set single bit E0.5\n");
res=daveWriteBits(dc, daveOutputs, 0, 5, 1, &a);
printf("function result:%d=%s\n", res, daveStrerror(res));
printf("Trying to read 1 byte from AAW0\n");
res=daveReadBytes(dc, daveAnaIn, 0, 0, 2,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
a=2341;
printf("Trying to write 1 word (2 bytes) to AAW0\n");
res=daveWriteBytes(dc, daveAnaOut, 0, 0, 2,&a);
printf("function result:%d=%s\n", res, daveStrerror(res));
printf("Trying to read 4 items from Timers\n");
res=daveReadBytes(dc, daveTimer, 0, 0, 4,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
d=daveGetSeconds(dc);
printf("Time: %0.3f, ",d);
d=daveGetSeconds(dc);
printf("%0.3f, ",d);
d=daveGetSeconds(dc);
printf("%0.3f, ",d);
d=daveGetSeconds(dc);
printf(" %0.3f\n",d);
d=daveGetSecondsAt(dc,0);
printf("Time: %0.3f, ",d);
d=daveGetSecondsAt(dc,2);
printf("%0.3f, ",d);
d=daveGetSecondsAt(dc,4);
printf("%0.3f, ",d);
d=daveGetSecondsAt(dc,6);
printf(" %0.3f\n",d);
printf("Trying to read 4 items from Counters\n");
res=daveReadBytes(dc, daveCounter, 0, 0, 4,NULL);
printf("function result:%d=%s\n", res, daveStrerror(res));
c=daveGetCounterValue(dc);
printf("Count: %d, ",c);
c=daveGetCounterValue(dc);
printf("%d, ",c);
c=daveGetCounterValue(dc);
printf("%d, ",c);
c=daveGetCounterValue(dc);
printf(" %d\n",c);
c=daveGetCounterValueAt(dc,0);
printf("Count: %d, ",c);
c=daveGetCounterValueAt(dc,2);
printf("%d, ",c);
c=daveGetCounterValueAt(dc,4);
printf("%d, ",c);
c=daveGetCounterValueAt(dc,6);
printf(" %d\n",c);
davePrepareReadRequest(dc, &p);
daveAddVarToReadRequest(&p,daveInputs,0,0,1);
daveAddVarToReadRequest(&p,daveFlags,0,0,4);
daveAddVarToReadRequest(&p,daveDB,6,20,2);
daveAddVarToReadRequest(&p,daveTimer,0,0,4);
daveAddVarToReadRequest(&p,daveTimer,0,1,4);
daveAddVarToReadRequest(&p,daveTimer,0,2,4);
daveAddVarToReadRequest(&p,daveCounter,0,0,4);
daveAddVarToReadRequest(&p,daveCounter,0,1,4);
daveAddVarToReadRequest(&p,daveCounter,0,2,4);
res=daveExecReadRequest(dc, &p, &rs);
if (doWrite) {
}
daveSetDebug(saveDebug);
}
// daveDebug=daveDebugAll;
if(doSZLread) {
readSZL(dc,306,4);
readSZL(dc,0xB4,0x1024);
readSZL(dc,0x111,0x1);
readSZL(dc,0xD91,0x0);
readSZL(dc,0x232,0x4);
readSZL(dc,0x1A0,0x0);
}
if(szlID!=-1) {
readSZL(dc,szlID,szlIndex);
}
/*
if(doSZLread) {
for (i=0;i<256;i++) {
readSZL(dc,i,0x0);
}
}
*/
if(doSZLreadAll) {
readSZLAll(dc);
}
if(doMultiple) {
printf("Now testing read multiple variables.\n"
"This will read 1 Byte from inputs,\n"
"4 bytes from flags, 2 bytes from DB6\n"
" and other 2 bytes from flags\n");
wait();
davePrepareReadRequest(dc, &p);
daveAddVarToReadRequest(&p,daveInputs,0,0,1);
daveAddVarToReadRequest(&p,daveFlags,0,0,4);
daveAddVarToReadRequest(&p,daveDB,6,20,2);
daveAddVarToReadRequest(&p,daveFlags,0,12,2);
daveAddBitVarToReadRequest(&p, daveFlags, 0, 25 /* 25 is 3.1*/, 1);
res=daveExecReadRequest(dc, &p, &rs);
printf("Input Byte 0 ");
res=daveUseResult(dc, &rs, 0); // first result
if (res==0) {
a=daveGetU8(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
printf("Flag DWord 0 ");
res=daveUseResult(dc, &rs, 1); // 2nd result
if (res==0) {
a=daveGetS16(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
printf("DB 6 Word 20: ");
res=daveUseResult(dc, &rs, 2); // 3rd result
if (res==0) {
a=daveGetS16(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
printf("Flag Word 12: ");
res=daveUseResult(dc, &rs, 3); // 4th result
if (res==0) {
a=daveGetU16(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
printf("Flag F3.1: ");
res=daveUseResult(dc, &rs, 4); // 4th result
if (res==0) {
a=daveGetU8(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
printf("non existing result (we read 5 items, but try to use a 6th one): ");
res=daveUseResult(dc, &rs, 5); // 5th result
if (res==0) {
a=daveGetU16(dc);
printf("%d\n",a);
} else
printf("*** Error: %s\n",daveStrerror(res));
daveFreeResults(&rs);
if (doWrite){
printf("Now testing write multiple variables:\n"
"IB0, FW0, QB0, DB6:DBW20 and DB20:DBD24 in a single multiple write.\n");
wait();
// daveDebug=0xffff;
a=0;
davePrepareWriteRequest(dc, &p);
daveAddVarToWriteRequest(&p,daveInputs,0,0,1,&a);
daveAddVarToWriteRequest(&p,daveFlags,0,4,2,&a);
daveAddVarToWriteRequest(&p,daveOutputs,0,0,2,&a);
daveAddVarToWriteRequest(&p,daveDB,6,20,2,&a);
daveAddVarToWriteRequest(&p,daveDB,20,24,4,&a);
a=1;
daveAddBitVarToWriteRequest(&p, daveFlags, 0, 27 /* 27 is 3.3*/, 1, &a);
res=daveExecWriteRequest(dc, &p, &rs);
printf("Result code for the entire multiple write operation: %d=%s\n",res, daveStrerror(res));
/*
// I could list the single result codes like this, but I want to tell
// which item should have been written, so I do it in 5 individual lines:
for (i=0;i<rs.numResults;i++){
res=rs.results[i].error;
printf("result code from writing item %d: %d=%s\n",i,res,daveStrerror(res));
}
*/
printf("Result code for writing IB0: %d=%s\n",rs.results[0].error, daveStrerror(rs.results[0].error));
printf("Result code for writing FW4: %d=%s\n",rs.results[1].error, daveStrerror(rs.results[1].error));
printf("Result code for writing QB0: %d=%s\n",rs.results[2].error, daveStrerror(rs.results[2].error));
printf("Result code for writing DB6:DBW20: %d=%s\n",rs.results[3].error, daveStrerror(rs.results[3].error));
printf("Result code for writing DB20:DBD24: %d=%s\n",rs.results[4].error, daveStrerror(rs.results[4].error));
printf("Result code for writing F3.3: %d=%s\n",rs.results[5].error, daveStrerror(rs.results[5].error));
/*
* Read back and show the new values, so users may notice the difference:
*/
daveReadBytes(dc,daveFlags,0,0,16,NULL);
a=daveGetU32(dc);
b=daveGetU32(dc);
c=daveGetU32(dc);
d=daveGetFloat(dc);
printf("FD0: %d\n",a);
printf("FD4: %d\n",b);
printf("FD8: %d\n",c);
printf("FD12: %f\n",d);
} // doWrite
}
if(doWrite) {
printf("Now we write back these data after incrementing the integers by 1,2 and 3 and the float by 1.1.\n");
wait();
/*
Attention! you need to daveSwapIed little endian variables before using them as a buffer for
daveWriteBytes() or before copying them into a buffer for daveWriteBytes()!
*/
a=daveSwapIed_32(a+1);
daveWriteBytes(dc,daveFlags,0,0,4,&a);
b=daveSwapIed_32(b+2);
daveWriteBytes(dc,daveFlags,0,4,4,&b);
c=daveSwapIed_32(c+3);
daveWriteBytes(dc,daveFlags,0,8,4,&c);
d=toPLCfloat(d+1.1);
daveWriteBytes(dc,daveFlags,0,12,4,&d);
/*
* Read back and show the new values, so users may notice the difference:
*/
daveReadBytes(dc,daveFlags,0,0,16,NULL);
a=daveGetU32(dc);
b=daveGetU32(dc);
c=daveGetU32(dc);
d=daveGetFloat(dc);
printf("FD0: %d\n",a);
printf("FD4: %d\n",b);
printf("FD8: %d\n",c);
printf("FD12: %f\n",d);
} // doWrite
if(doClear) {
printf("Now writing 0 to the bytes FB0...FB15.\n");
wait();
a=0;
daveWriteBytes(dc,daveFlags,0,0,4,&a);
daveWriteBytes(dc,daveFlags,0,4,4,&a);
daveWriteBytes(dc,daveFlags,0,8,4,&a);
daveWriteBytes(dc,daveFlags,0,12,4,&a);
daveReadBytes(dc,daveFlags,0,0,16,NULL);
a=daveGetU32(dc);
b=daveGetU32(dc);
c=daveGetU32(dc);
d=daveGetFloat(dc);
printf("FD0: %d\n",a);
printf("FD4: %d\n",b);
printf("FD8: %d\n",c);
printf("FD12: %f\n",d);
} // doClear
if(doStop) {
daveStop(dc);
}
if(doRun) {
daveStart(dc);
}
if(doList||doReadout) { // if readout is not set, loadBlocksOfType will only ist block names
daveListBlocks(dc,NULL);
loadBlocksOfType(dc, daveBlockType_OB, doReadout);
loadBlocksOfType(dc, daveBlockType_FB, doReadout);
loadBlocksOfType(dc, daveBlockType_FC, doReadout);
loadBlocksOfType(dc, daveBlockType_DB, doReadout);
loadBlocksOfType(dc, daveBlockType_SDB, doReadout);
if ((doSFBandSFC) ||(doListall)){
loadBlocksOfType(dc, daveBlockType_SFB, doReadout);
loadBlocksOfType(dc, daveBlockType_SFC, doReadout);
}
}
if(doGetHeaders) {
daveListBlocks(dc,NULL);
// saveDebug=daveGetDebug();
// daveSetDebug(daveDebugAll);
getBlockHeadersOfType(dc, daveBlockType_OB);
getBlockHeadersOfType(dc, daveBlockType_DB);
getBlockHeadersOfType(dc, daveBlockType_FC);
getBlockHeadersOfType(dc, daveBlockType_FB);
getBlockHeadersOfType(dc, daveBlockType_SFC);
getBlockHeadersOfType(dc, daveBlockType_SFB);
// daveSetDebug(saveDebug);
}
if(doBenchmark) {
rBenchmark(dc, daveFlags);
if(doWrite) {
wBenchmark(dc, daveFlags);
} // doWrite
} // doBenchmark
if(doSync) {
res=daveSetPLCTimeToSystime(dc);
doReadTime=1;
if (res!=0 && res!=10)
printf("*** Error: %04X = %s\n",res,daveStrerror(res));
} // doSync
if(doReadTime) {
printf("read time: ");
daveReadPLCTime(dc);
for (i=0;i<10;i++) {
a=daveFromBCD(daveGetU8(dc));
printf("%d ",a);
}
printf("\n");
} // doSync
if(doTestMany) {
printf("read a long block of bytes from DB%d\n",aLongDB);
buffer=malloc(2000);
// res=daveReadBytes(dc,daveDB,aLongDB,0,2000,buffer);
// printf("Result code: %04x=%s\n",res, daveStrerror(res));
res=daveReadManyBytes(dc,daveDB,aLongDB,0,2000,buffer);
printf("Result code: %04x=%s\n",res, daveStrerror(res));
} // doTestMany
printf("Now disconnecting\n");
daveDisconnectPLC(dc);
daveFree(dc);
if(dc2) {
daveDisconnectPLC(dc2);
daveFree(dc);
}
daveDisconnectAdapter(di);
daveFree(di);
return 0;
} else {
printf("Couldn't connect to PLC.\n Please try again. You may also try the option -2 for some adapters.\n");
daveDisconnectAdapter(di);
daveDisconnectAdapter(di);
daveDisconnectAdapter(di);
return -2;
}
} else {
printf("Couldn't open serial port %s\n",argv[adrPos]);
return -1;
}
}
Tomorrow i give the
testMPI -d /dev/ttySx and
testMPI -2 -d /dev/ttySx's debug output information ,becuse the PLCS isn't here.
Sorry, but what do you think it is good for to post the source code here? If it hasn't been modified, everyone can get it from the download server.
If it has been modified, do you think I will check it line by line what you did modify?
Sorry, I make a mistake!
My settings for MPI speed is daveSpeed187k, local MPI is 0 and plcMPI is 2.The adapter was set to the right baud rate (38400).
Sorry I wrote incorrectly testMPI -2 -d /dev/ttySx
the output should is:
./testMPI -d -2 /dev/ttyS0
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() success.
I send:
0:0x10,
I send:
0:0x02,
readSingle 1 chars. 1st 66
IF1 listReachablePartners() no answer (DLE) from adapter.
readSingle 1 chars. 1st FFFFFF80
IF1 listReachablePartners() no answer (DLE) from adapter.
daveListReachablePartners List length: 0
ConnectPLC
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 connectPLC(2) no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 connectPLC(2) no answer (DLE) from adapter.
IF1 daveConnectPLC() step 4.
IF1 daveConnectPLC() step 4 ends with 4.
Couldn't connect to PLC.
Please try again. You may also try the option -2 for some adapters.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x66,0x80,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x00,
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x66,0x80,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x00,
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x66,0x80,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x00,
Your meaning is whether initAdapter also fails, even if it is not detected by the code.
I want to konw whether tests can succeed using the adapter 6ES7 972-0CA23-0XA0 .
Thomas thank you very much!
? Your meaning is whether initAdapter also
? fails, even if it is not detected by the code.
Yes, it does. What if you do try without the -2?
? I want to konw whether tests can succeed using
? the adapter 6ES7 972-0CA23-0XA0
I do not have this adapter myself but I got mail from people who tested it positively.
Three things:
1. Use the precompiled test programs. They should work on each an every Linux for i386 machines. No differences between RedHat/SuSe/Debian...
2. If a test failed, disconnect the MPI adapter from the CPU to reset it before doing a nother test.
3. If you post debug output, make it somewhat shorter. In all these tests, you cann leave away everything after:
? daveListReachablePartners List length: 0
I didn't modify source code,The output as follows:
What if you do try without the -2?
./testMPI -d /dev/ttyS0
the output is:
IF1 enter initAdapter(1).
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() fails.
IF1 enter DisconnectAdapter()
I send:
0:0x02,
I send:
0:0x01,0x04,0x02,0x10,0x03,0x14,
_daveSendWithCRC:
0:0x01,0x04,0x02,0x10,0x03,0x14,
IF1 daveDisconnectAdapter() step 1.
IF1 daveDisconnectAdapter() step 2.
I send:
0:0x10,
I send:
0:0x10,
got:
0:0x00,0x00,0x00,0x00,0x05,0x00,0x00,0x00,0x00,0x20,
./testMPI -d -2 /dev/ttyS0
the output is:
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 initAdapter() no answer (DLE) from adapter.
IF1 initAdapter() success.
I send:
0:0x10,
I send:
0:0x02,
readSingle 0 chars. 1st 02
IF1 listReachablePartners() no answer (DLE) from adapter.
readSingle 0 chars. 1st 02
IF1 listReachablePartners() no answer (DLE) from adapter.
daveListReachablePartners List length: 0
ConnectPLC
The two different version of the MPI protocol initAdapter also fails.
disconnect the MPI adapter from the CPU to reset it before doing a nother test.
If i break from MPI adapter from CPU,I want to know how to reset the MPI adapter.
Hence there is somthing wrong with serial
communication, that is to say,is there something wrong with connection between MPI adapter and CPU?
lijasmine from China
All what I can see here is that in both cases (with and without -2), no answers come from the adapter in time. In the first case, a nonsensical answer comes after very long time.
? If i break from MPI adapter from CPU,I want to
? know how to reset the MPI adapter.
There is nothing to do. When you disconnect it from the CPU, it gets no more energy. When you plug it in again, it does a reset.
? Hence there is somthing wrong with serial
? communication, that is to say,is there
? something wrong with connection between MPI
? adapter and CPU?
No, between adapter and PC.
I fear we cannot make any progress that way.
If anybody reads this list and can confirm that libnodave works for him with an adapter 6ES7 972-0CA23-0XA0, this would be helpful.
Do you have Step7 on a windows computer?
If so, just try to run testMPI.exe on it (after closing step7).
I have Step7 on a windows computer, and I have downloaded programs into PLC in windows OS.Then I exchanged data between PC and PLC in Linux OS.
Ok,I install libnodave in Windows OS firstly.
Do you have Step7 on a windows computer?
If so, just try to run testMPI.exe on it (after closing step7).
Does running testMPI.exe depend on step7?
After disconnecting the MPI adapter from the CPU and reset it,I run in both cases (with and without -2),the output codes is the same to above.there is
something wrong with connection between adapter and PC.