Forcing a Signal. 800xA V6.0.3
I have a NON-SIL program. I have aproblem regarding the function block SignalInReal. Since we are using a Modbus as our source of AI signal, So I declared a variable realio for the In parameter of the function block. The Value and IOValue responds to the input but when I tried to force the signal it doesnt work. Also if I try to change the status it doesnt respond. Is there a way to force the signal or settings on this? Im using 800xa V6.0
Voted best answer
In my understanding, if you need faceplate for real signal comming from Modbus communication, you should use SignalReal instead SignalInReal because SignalInReal use status parameters coming from hardware tree.
If you decide to use SignalReal just connect modbus signal to "In" parameter. Look and feel is similar to SignalInReal.