hainter
Member
Hey Guys,
I have a generic application where I'm using two sensors to detect a moving object and then use a timer off the second sensor to trigger something happening. I'm using an AB compact logix L23. the problem is with scan time it makes the timer calculation too inaccurate.
My initial thought was to trigger an interrupt off each input and another interrupt off the timer being done to eliminate scan time inaccuracies, but the L23 doesn't support this.
Two questions:
Can you think of another way to program this to make it more accurate?
Is there another PLC brand that you could recommend that would be better for this application?
Regards
I have a generic application where I'm using two sensors to detect a moving object and then use a timer off the second sensor to trigger something happening. I'm using an AB compact logix L23. the problem is with scan time it makes the timer calculation too inaccurate.
My initial thought was to trigger an interrupt off each input and another interrupt off the timer being done to eliminate scan time inaccuracies, but the L23 doesn't support this.
Two questions:
Can you think of another way to program this to make it more accurate?
Is there another PLC brand that you could recommend that would be better for this application?
Regards