pymodbus vs other python modbus implementations

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Vijay Anand

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Oct 9, 2016, 7:53:36 AM10/9/16

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Hello,

I am trying to dump a range of registers from a Modbus RTU thru a usb=rs485 interface from raspberry. with a limited search i found that there are 3 implementations

* pymodbus

* minimalmodbus

* modbus-tk

As per the article in http://stackoverflow.com/questions/17081442/python-modbus-library, i understand that modbus-tk had the best performance and scalability. But looks pymodbus is more active and popular.

* Wanted to know if there are still performance issues with pymodbus. Are there any stability/reliability issues while reading registers from a modbus RTU or PLC?

regards

Vijay

Nagashree Iyer

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Oct 16, 2017, 9:15:36 AM10/16/17

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Hi,

I have a similar requirement. Did you finally decide on which library to use. Any inputs are appreciated