question about FC

[jiva61]

I make a program that is made in it 2 FCes. I write a instruction in ob1 for going to FCes but this program isn't work correctly. please lead me what's wrong? 1_PROJ_MAN_AUTO_KEYS.zip

[Groo]

Not everyone who can help has a copy of Step 7 handy. Be better if you PDF'd of displayed snapshots of the code you are having problems with and be more specific with the problem.

[Henric]

The program: OB1: A "in" S M 0.1 A "AUTO/MAN SELECTOR" FP M 0.0 R M 0.1 CC FC 1 A "in" FN M 0.1 R M 0.0 CC FC 2 AN "in" R M 0.0 R M 0.1 R M 0.2 R M 0.3 R M 0.4 R M 0.5 R M 0.6 R M 0.7 FC1: A "EMPTY SENSOR" S M 0.4 R M 0.5 A M 0.4 S "INLETVALVE" R "OUTLETVALVE" A "FULL SENSOR" S M 0.5 R M 0.4 A M 0.5 S "OUTLETVALVE" R "INLETVALVE" FC2: A "MAN-INLET KEY" = "INLETVALVE" A "MAN-OUT KEY" = "OUTLETVALVE" What do you want the program to do how should it work?

[Groo]

Be helpful to state what the problem is, what these inputs are supposed to represent and what PLC it is. S7-200 is totally different to S7-300/400. The program looks like the latter. I can see that M 0.1 is being used as a SET/RESET and then later as a Falling Edge detection, so that's a conflict. Also if the clock memory is enabled and it still has the default MB0 set, then all the memory bits will screw up.