I have an existing Micrologix 1200 that read some analog values off of temp and dewpoint sensors. I want to replace the current sensors with new ones that communicate using rs485/Modbus RTU. I would need to communicate with two different sensors on different networks so I would need two rs485 ports for the PLC.
Is there anyway to do this? It doesn't appear that there are any expansion cards for the PLC that do RS485. Is there any workarounds? like a card that reads values off of RS485 and transmits an analog signal to the PLC?
Thank you.
Is there anyway to do this? It doesn't appear that there are any expansion cards for the PLC that do RS485. Is there any workarounds? like a card that reads values off of RS485 and transmits an analog signal to the PLC?
Thank you.