Hi, I have an AXC F 1152 controller with 2 x AXL SE RS485 card. My requirement is to read data via one of the modbus RTU cards from various instruments, and then store the values in a local modbus register on the controller, for an external modbus RTU master to read via the 2nd modbus RTU card (essentially providing a firewall type function between the master modbus device and all the instruments). I have done this using traditional IEC Function Block but my client does not have ‘PLC’ skills and wants me to use only Node Red, or write a program in C++ or Python. I am trying to wrap my head around how eg Node Red will read data from the AXL SE RS485 card and store in a register accessible by the 2nd AXL SE card, and do this without any PLC programming.
Links to any docs, tutorials, videos etc would be appreciated. Thank you