Help me guys please
I have two control loops PID P1 and P2
P1 is working fine and it has logic to store 0 to "control value" without compiler faults
P2 is working fine but it wont allow store 0 to "control value" , system responds compiler "tag is read only"
Now i am thinking that P2 is wrong so i create a P3 and its the same P2 but it wont allow store 0 to "control value" , system responds compiler "tag is read only"
when i duplicate P1 to P11 , the P11 acts the same as P1 and it compiles ok and store 0 to "control value" without compiler faults
Now i am sure the logic should not allow me to store 0 to "control value" and the compiler is right but why does it work fine on P1 but it wont work on P2