Quick question on positive edge triggers.
since plc scans inputs, then solves logic, and last writes outputs. If you have a positive edge in your program, is it your next single scan that the output is ON for. I remeber someone telling me it is on from that point of the program to the end, so if you have something triggered off of the positive edge but placed before it in the program it will never be triggered?????
I'm confused.
-Joel
since plc scans inputs, then solves logic, and last writes outputs. If you have a positive edge in your program, is it your next single scan that the output is ON for. I remeber someone telling me it is on from that point of the program to the end, so if you have something triggered off of the positive edge but placed before it in the program it will never be triggered?????
I'm confused.
-Joel