Python: Talking to the Modbus bus requires access control #4

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jarno · 2023-01-18T15:59:10+02:00

jarno commented

2023-01-18 15:59:10 +02:00

Modbus allows only one device to be speaking on the bus concurrently. Basically every operation that is executed by the controller (acting as Modbus master=client) needs to first ask for data.

This should also make it simple to implement access control to the bus, as a simple lock should be enough.

Modbus allows only one device to be speaking on the bus concurrently. Basically every operation that is executed by the controller (acting as Modbus master=client) needs to first ask for data. This should also make it simple to implement access control to the bus, as a simple lock should be enough.

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