PLC Connect Tags
Is it possible to use PLC connect tags in function diagrams for Modbus control purposes?
We are running SV 5.1 Rev C and we adding a package that requires modbus control, the control is going to based off of doing a compare between status read by PLC Connect from a PLC then determine with action to send in a packed register to another PLC via modbus, I know this sounds like a simple complex but I find it to be a little more challenging that first imagined.
THe other thing I was wondering does any have a sample code of using the MBTCPReadWrite block as I would also like to make sure I have incorporated that correctly or would it be better to use a MBTCPReadCyc and MBTCPWrite?
I think you should clarify, first. because PLC Connect is used mainly to communicate with Modbus slaves, and show or managed this data in operator workplace.
But MBTCread and write are commands to read and write via modbus but in this case using controller hardware,
It depends of your application what is the best selection, PLC connect or controller hardware.