Modbus crc check

M HARISH

Member
Join Date
Aug 2020
Location
hyderabad
Posts
6
Hello,
i am connected l&t energy meter to PLC through RS485 in tia portal v15. i was reading values in plc. my problem is how to check crc 16 in plc tia portal. kindly support me any one konws the solution
 
I don't believe you can examine the actual CRC of the MODBUS messages.

Look up the help file on MB_MASTER in TIA Portal. You will get an error bit if there is an error, and Error code 8380 for a CRC error.
 

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