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What does this error code 3821 mean (attached picture) ? Gx IEC Dev. 7.04 FX3U-16MT/DSS with FX3U-ENET P502, FX3U-485BD and FX3U-485ADP. Communication is up and running correctly on the two RS-485 lines, and the Modbus TCP line. Can't find any information about the error code. link_error.bmp
Posted
Recompiled and downloaded the code and the error code appears at once. So it's nothing that pops up after a while. Anyone out there that has a clue ?
Posted
Don't know how I could have missed that, been looking in that manual several times. Thanks for pointing me in the right direction The strange thing is that the Modbus slave communication I have on channel 2 is up and running.

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