geoffewart
Member
I'm trying to create new graphics for some open / close valves we're installing. The standard I have to follow calls for the valve to be green when open, red when closed and yellow when travelling or neither open or closed (stuck). After reading another thread on here I've created 3 versions of the graphic (red, green and yellow) and set the visibility for each to only come on when called for. Problem is my expression for the yellow valve checks out in the syntax checker but error in the when the application is run on the PV. Here's the expression:
IF {[DistillationPLC]Beer_Well_Feed_To_Beer_Stills_Valve.FAILCL} OR {[DistillationPLC]Beer_Well_Feed_To_Beer_Stills_Valve.FAILOP} = 1 THEN TRUE ELSE FALSE
If it doesn't show the whole Expressions/computer talk is pretty foreign to me.
Also I have an agitator that turns green when on but is supposed to rotate. The system/BlinkFast tag works but I can't figure out how to connect it to my process tag to tell it when to blink. I've tried if/then/else, equals, "&", no expression and possibly a few others.
Thanks in advance for any help!
IF {[DistillationPLC]Beer_Well_Feed_To_Beer_Stills_Valve.FAILCL} OR {[DistillationPLC]Beer_Well_Feed_To_Beer_Stills_Valve.FAILOP} = 1 THEN TRUE ELSE FALSE
If it doesn't show the whole Expressions/computer talk is pretty foreign to me.
Also I have an agitator that turns green when on but is supposed to rotate. The system/BlinkFast tag works but I can't figure out how to connect it to my process tag to tell it when to blink. I've tried if/then/else, equals, "&", no expression and possibly a few others.
Thanks in advance for any help!