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Showing posts with the label Modbus

Pymodbus Exception Response(131, 3, Illegaladdress)

I'm trying to run this piece of code: from pymodbus.client.sync import ModbusSerialClient as Mo… Read more Pymodbus Exception Response(131, 3, Illegaladdress)

Modbus Rtu Crc16 Calculation

I'm coding a MODBUS CRC16 calculator in C. What I have before is a python that do this, I wante… Read more Modbus Rtu Crc16 Calculation

How Can I Read Register Usb Rs485 To Any Modbus Device?

My Device Address is 1, I tried Read Holding Register, and Register Address is 0. I tried pyserial … Read more How Can I Read Register Usb Rs485 To Any Modbus Device?

Unexpected Number When Reading Plc Using Pymodbus

I am using pymodbus to read a register on a Wago 750-881 PLC. I am also reading the same register o… Read more Unexpected Number When Reading Plc Using Pymodbus