I am trying to understand and will be cleaning up a AB ladder logic program. The first rung has;
|----- NOT S:1/15 ------- OSR B3:0/0 -------------------------- ( B3:0/1) --------|
B3:0/1 then turns B3:0/2 on and holds itself on with a branch around B3:0/1
Most, if not all, rungs are then only true if B3:0/2 is on.
1) What is S:1/15?
2) What advantage is it to set this bit on during the "First Pass" as it's labeled?
Thank you in advance for your help
|----- NOT S:1/15 ------- OSR B3:0/0 -------------------------- ( B3:0/1) --------|
B3:0/1 then turns B3:0/2 on and holds itself on with a branch around B3:0/1
Most, if not all, rungs are then only true if B3:0/2 is on.
1) What is S:1/15?
2) What advantage is it to set this bit on during the "First Pass" as it's labeled?
Thank you in advance for your help