We designed the modbus communication custom PCB that is needed to communicate with PLC. But the custom PCB is not working well. We need an expert in this field, to make them working correctly including hardware design and firmware development.
Please apply if you are a real expert in this field. Write the "MODBUS" in your proposal.
30 freelanceria on tarjonnut keskimäärin $22/tunti tähän työhön
MODBUS Hello, I am an expert in RS485 Modbus. I have done multiple projects using this interface. Let us discuss. I am assuming that you are going to read from PLC some data.