30 September 2021
Yes, It is possible to use Modbus RTU or Modbus TCP/IP protocols as IO Driver for communication between Magelis HMISTU and Allen Bradley Micro 850 PLC.
Note: For Modbus RTU protocol, it supports both RS232C and RS485 as link media. There is no pre-made cable, create your own cable according to pinout/diagram in HMISTU hardware Guide.
For further info on Magelis STU screen, please visit the link below:https://www.schneider-electric.com/en/product-range/5774-magelis-sto---stu/?filter=business-1-automation-and-control&parent-category-id=2100