Modbus RTU nodes with DE and RE control

Industrial
1

Hi everyone,

I am trying to communicate between an Arduino Leonardo based PLC: https://www.industrialshields.com/web/content?model=ir.attachment&field=datas&id=262929& and a Raspberry based PLC: https://www.industrialshields.com/web/content?model=ir.attachment&field=datas&id=137792& through Modbus RTU RS-485.

The fact is that the Touchberry Pi internally needs to control the DE and RE pins for Rs-485.

Does anyone know any Modbus nodes to control DE and RE pins? I tried some but I do not think they can do it

Thank you very much,

Q.

2

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