PLC5 -> Modicon

[MrJensen 0]

Hey, I am using a ProSoft 3100 MCM module to communicate with a Telemecanique PLC fra my PLC5. This communication failes sometimes, and the ERR1 LED is lit. Does anyone have ideas to solve the problem. by the way... the problem has occured after 2 years of perfect function. No program changed or other changes. The phone line is tested OK. The communication often failes over periods of 24 hours, then works for som hours and so on, without no obvius connection to the production or something. I know that there is some free MODBUS scanners on the marked (PC software) Coul this be used or is it possible to read out some diagnostics for the module? Please help...

[naing 0]

Hi, Should there be any other problem? First of all, I think, you should read out some diagnostics for the module. I have some experiance about that ......(and so on). Good luck.