Pymodbus is a full Modbus protocol implementation offering a client and server with synchronous/asynchronous API and simulators. Our releases follow the pattern X.Y.Z.

Pymodbus asynchronous Server with updating task Example. An example of an asynchronous server and a task that runs continuously alongside the server and updates values.

Pymodbus offers both a synchronous client and a asynchronous client. Both clients offer simple calls for each type of request, as well as a unified response, removing a lot of the complexities in the modbus …

Server (3.x) Pymodbus offers servers with transport protocols for Serial (RS-485) typically using a dongle TCP TLS UDP possibility to add a custom transport protocol communication in 2 versions: …

pymodbus.pymodbus_apply_logging_config(level: str | int = 10, log_file_name: str | None = None) Apply basic logging configuration used by default by Pymodbus maintainers.

Pymodbus asynchronous Server with updating task Example. An example of an asynchronous server and a task that runs continuously alongside the server and updates values.

Simulator WORK IN PROGRESS, do NOT use The simulator is a full fledged modbus server/simulator. The purpose of the simulator is to provide support for client application test harnesses with end-to …

pymodbus.pymodbus_apply_logging_config(level: str | int = 10, log_file_name: str | None = None) Apply basic logging configuration used by default by Pymodbus maintainers.

Server Pymodbus offers servers with transport protocols for Serial (RS-485) typically using a dongle TCP TLS UDP possibility to add a custom transport protocol communication in 2 versions: …

This is the types pymodbus recognizes, actually the modbus standard do NOT define e.g. INT32, but since nearly every device contain e.g. values of type INT32, it is available in pymodbus, with …