PLCSSIM : iso error occurred during recv TCP

32/64 bit multi-platform Ethernet S7 PLC communication suite

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PLCSSIM : iso error occurred during recv TCP

Forum: Bugs reporting

Creator: jl2013

Created: 2015-10-23

Updated: 2015-11-10

jl2013 - 2015-10-23

Hi,

I'm working on a simulated PLC (S7-300) and I try to use the function Cli_Download within a C code to download an OB into the virtual PLC.

However, when I try with a S7-315, the error code is "ISO : An error occurred during recv TCP : Connexion timed out".The message is the same using the clientdemo. If I try again, the message becomes "download sequence failed". The latter message is what I get when I try with other S7-300 versions.
I used the 1.3 and 1.4 versions, no differences.

Has anyone already encountered the same issue? Is it because the PLC is simulated?

Best regards,

JL

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- lapie - 2015-11-06
  
  Hi,
  
  I have encountered the same problem with plc sim. I haven't tested yet with a real plc because at het moment i have no plc available. I will test it next week again with a real plc.
  
  regards
  
  Last edit: lapie 2015-11-06
  
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jl2013 - 2015-11-10

Hi,

Thank you for your answer. I tried it on a real plc S7-300 yesterday and it worked !!! I think this is because we have to disable a windows service with the simulated plc. Maybe this one is necessary to fully establish a connection.

Regards,

JL

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