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Goals and Symptoms
We have some problems with ATV31 and LA9P307. Normally it works well but not in this case: LA9P307 with HUB LU9GC3 and 8 ATV31. RC-Termination is like manual. It works well but when one ATV31 is shut off or disconnect from Modbus the other 7 atv31 are tripping with SLF!
When it will be switched off it gives for a short time 208 in the ETA
Facts and Changes
ATV31 Modbus LA9P307
Causes and Fixes
What is the adjusting value of PPO failure ? The problem was solved with Modbus max N adjusted to 2 in place of 7. The signification of 16#0208 in ETA is serial link fault. It was siemens PLC.
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