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2/25/2013 11:05 PM | |
Posts: 8 Rating: (0) |
Dear users, I was wondering why S_Pulse doesnt start when the input of the P_TRIG becomes high. See the attached file for details. Thank you in advance! Oswald |
2/26/2013 5:28 PM | |
Joined: 1/28/2009 Last visit: 9/10/2024 Posts: 6849 Rating: (1365) |
Hello, To add some points regarding your case: Different SIMATIC timers(for S7 300/400) has different reaction towards short pulses.For pulse timer, it just copies the short pulse to output as discussed in details in TIA online manual.What you seek,I guess, would be using extended pulse timer in which by applying a short pulse, a full pulse with pre-selected width can be generated(if no reset signal presents). For different behavior of timers, consult the online manual and also check the attachment for what I have tested.In first file, you can check the timing diagram and in the 2nd file LAD codes corresponds to the mentioned result. I hope this helps Best regards Hamid Hosseini Attachmentzeit.zip (264 Downloads) |
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