communication between AC500 PM571 and CP604
I have an AC500 PM571 plc that used a CP420 HMI before, but the HMI stopped working, so I had to use a new HMI CP604, but I am having trouble communicating AC500 and CP604.
It is possible to communicate this new hmi with plc, without having to put a new program in plc, without using automation builder, just configuring cp604 by panel builder 600 program and using the proper protocol.
The old hmi use to modbus RS485 communication .
Theoretically you could do the replacement of CP420 with CP604 without using of programming tool for AC500 controller. CP600 supports Modbus RTU for RS485.
BUT anyhow you will need to know the communication protocol's settings (speed, data, stop bits, slave number...) and also the mapping (the list of variables to exchange between CP and AC500). I don't know if you have that data on paper.
So I think you have two alternatives - using of automation builder or CoDeSys to open the existing project of the PLC or CP400 soft to open the old project for CP400. Having that data, you could create the new CP600 project manually.
My experience is that upload of the existing AC500 project for reading or editing is almost not possible. CP400 Soft supports uploading, so you can try that option to open the existing CP400 project.
Practically I think the replacement will be a difficult task, if you don't have one of above mentioned existing projects.
I don't know about direct conversion tool to translate CP400 project to CP600 project.