modbus

Hosting multiple clients with freemodbus

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If you have a limit on the number of modbus clients then dropping old connections when a new one arrives is actually suggested in the modbus implementation guide (https://www.modbus.org/docs/Modbus_Messaging_Implementation_Guide_V1_0b.pdf) Nevertheless a mechanism must be implemented in case of exceeding the number of authorized connection. In such a case we recommend to close the oldest unused … Read more

Python modbus library [closed]

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About the same time I faced the same problem – which library to choose for python modbus master implementation but in my case for serial communication (modbus RTU) so my observations are only valid for modbus RTU. In my examination I didn’t pay too much attention to documentation but examples for serial RTU master were … Read more

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