![]() '''Reading from a discrete register with the below content.''' ![]() Res = client.read_holding_registers(address=1, count=1, unit=1) '''Reading from a holding register with the below content.''' If nnect(): # Trying for connect to Modbus Server/Slave Here is a Modbus RTU client (master) snippet code to read from a Modbus RTU server (slave) or a Modbus device by the pymodbus library: from import ModbusSerialClient The procedure in the Modbus protocol is such that the server/slave must give a request from the master/client side, then response to it. ![]() Pymodbus library has several examples for server/slave/responder (usually devices are a server/slave) and master/client/requester. I came across this below Serial python code and I could successfully decode modbus requests from the Master, import serial I am new to this protocol and environment, I am not able to find any python script or libraries where we have a modbus slave client. I want this Raspberry Pi based slave to populate and send a response to master when ever master requests for a register value. My use case here is to implement a Raspberry pi based RTU modbus slave and connected to a modbus master. I am working on a automation test case for a system and need a automated modbus input device.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |