11/24/2011 12:57 AM | |
Joined: 9/1/2011 Last visit: 1/24/2023 Posts: 13 Rating:
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Could you put some details about the case? How long is it? How did you measure the delay? As you described, you use a hardware interrupt which could be delayed by OS about 20us (AFAIR). But probably update of outputs (writes from process memory to output buffer) is happen on the end on cycle. Have you tried address directly process value using ex. "Q0.0:P" ? ps. I'm really interested in details about working OS on PLCs for my research study. Edit: @ Marko Bursic: you were faster... :) |
Last edited by: LuenObserver at: 11/24/2011 12:58 AM |
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