Problem with PM591_ETH, external pou missing or just stuck on downloading
I have a big problem, I'm on site and whenever I try to download to the plc I get one of the 2 following problems:
- I get error message: Error, unresolved external pou: DiagGetBusState, DiagGetBusStateInit, DiagGetState... BATT, CLOCK, CLOCKInit...
CPU goes to stop mode and doesn't communicate anymore, I have to reset it.
- I get the "downloading all, 0 of xxxx bytes" and it gets stucked on it for few minutes and then gives a communication timeout message. CPU is unchanged, running, nothing downloaded and I'm able to login again but can never download...
Firmware on the CPU is 2.3.0 that I believe is the last version I can use not having the new automation builder (can't upgrade to it now as we are in commissioning).
Basically I cannot do any changes due to these problem. I need to put there an old backup (smaller project size) and then I can for some time do changes (for example I import changes that I did in later backup and I can download them) but at some point it always start again with this problem. I really need help here as I'm on site and have no time to lose.
Is the project getting corrupted somehow? I can send backup of the project if someone can analyze.
Thx in advance
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