I got a report from a user trying testISO_TCPload on an S7-416 saying that after a first test in which he tried to load OB1 (read out with testISO_TCP --readout) into the CPU, the CPU continued to work but didn't seem to continue any more blocks. He could revive it after a complete erase. After a second test, the CPU didn't work any more even after complete erase but seemed to have a password set (which hadn't been the case before). He tried to fix this state by a firmware update and ended up with an unuseable CPU. I have personally tried libnodave only once on some 4xx CPU before I implemented loading blocks into CPU. Tests with loading blocks I did only on 315-2DP, 212, 224 and VIPA Speed 7. Complete erasure had been necessary (or at least useful) after loading SDBs in wrong sequence.
1. Did anybody experience similar troubles?
2. Did anybody successfully load blocks into a 4xx?
3. For those how never tried: Be warned!!
Thomas
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Just to keep informed those of you who read the message and may have got alarmed by it: The said user seems to have activated protection level 3 on his CPU. It seems that the hardware itself still works.
Thomas
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I got a report from a user trying testISO_TCPload on an S7-416 saying that after a first test in which he tried to load OB1 (read out with testISO_TCP --readout) into the CPU, the CPU continued to work but didn't seem to continue any more blocks. He could revive it after a complete erase. After a second test, the CPU didn't work any more even after complete erase but seemed to have a password set (which hadn't been the case before). He tried to fix this state by a firmware update and ended up with an unuseable CPU. I have personally tried libnodave only once on some 4xx CPU before I implemented loading blocks into CPU. Tests with loading blocks I did only on 315-2DP, 212, 224 and VIPA Speed 7. Complete erasure had been necessary (or at least useful) after loading SDBs in wrong sequence.
1. Did anybody experience similar troubles?
2. Did anybody successfully load blocks into a 4xx?
3. For those how never tried: Be warned!!
Thomas
Just to keep informed those of you who read the message and may have got alarmed by it: The said user seems to have activated protection level 3 on his CPU. It seems that the hardware itself still works.
Thomas