ES Relay Emulation

[andreidragosh]

I have to implement an emergency stop relay with this behavoir: 3 conditions for activate emergency stop (S1, S2 and PB ES),the output of the relay is 1 if the ES is active, the restart is ok if:
- the conditions of ES are back ok (that means a negative edge detection at the input);
-the feedback from the actuator is 0 (deactivated);
-a PB for Start is pressed ( postive edge detection).
ON "S1"
ON "S2"
ON "PB ES"
= "Output Relay ES" //conditions for ES
R M 10.2
R M 10.5
A "Output Relay ES"
FN M 10.0
= M 10.1 //=1 for 1 cycle
A M 10.1
S M 10.2 //neg. edge detection for ES input
A M 10.2
A "PB Start"
FP M 10.3
= M 10.4
A M 10.4
S M 10.5 //pos. edge detection
A M 10.2
A M 10.5
AN "Feedback motor"
R "Output Relay ES"
it is correct?

 

[andreidragosh]

Another program that works:
ON "S1"
ON "S2"
ON "PB ES"
S M 8.3 //intermediate flag for ES Relay
= M 8.7
A M 8.7
FN M 8.0
S M 8.1 //flag for negative edge of ES
A M 8.7
FP M 8.2
R M 8.1 //flag for positive edge of ES
A M 8.1
AN M 8.7
A "Start"
AN "Feedback motor"
R M 8.3
A M 8.3
= "ES Relay"
AN "ES Relay"
= "Motor"