PM5560 modbus RTU

[HuyDoan]

Hi, I’m using modscan to communicate with PM5560, the setting in modscan is same with PM5560 such as baudrate: 9600, parity: None, ID: 1. Connection is successful. Reference from Modbus register list, I check current A at address 3000, function code 4 but reading is 0, it is not matching with actual. How can I solve this issue? Thanks

[RobGraham]

I believe all PM5000 registers are read with function code 3 (Read Holding Register).  I'm not sure this is called out in the register list itself.

[ThaboMadisha]

Hi, maybe this can help you.

[Jesus_Diaz · Accepted solution]

Hi @HuyDoan,

Could you please show the configuration you are using in Modscan? Make sure to select 03:HOLDING REGISTER and set the proper device ID.