2/9/2013 9:07 PM | |
Joined: 5/27/2012 Last visit: 6/26/2024 Posts: 177 Rating: (0) |
Yes,Write me an example how to us this type var if you can. |
2/9/2013 9:40 PM | |
Joined: 5/27/2012 Last visit: 6/26/2024 Posts: 177 Rating: (0) |
Very thanks,now I begin understand. Best regards. |
This contribution was helpful to1 thankful Users |
2/11/2013 7:37 PM | |
Posts: 197 Rating: (3) |
Dear hdhosseini, I understand there are 2 scenarios here: 1) set M100.0 in OB100 and then reset it in OB1 (your scheme) or 2) In OB100 --> AN M100.0 --> = M100.1 (by igor62il) Is it that case 1 will keep M100.0 "true" for one scan cycle ; where as case 2 will generate an impulse signal of M100.1for as long as OB100 is active? By the way,is there aneed to count the values through C1? I mean why can't we just SET and CLR the markerbit in OB100 and OB1 respectively? Regards |
2/11/2013 7:57 PM | |
Joined: 1/28/2009 Last visit: 10/11/2024 Posts: 6852 Rating: (1365)
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Hello , To summarize what were the scenarios: 1-I proposed generating a short pulse in each restart(Execution of OB100) of CPU.This was made sense for me because in some PLC we have same pulse available in system memories. 2-Codes provided by igor62il is just toggling a memory when OB100 executed.I have not seen this case in practice.I personally prefer the short pulse case. Using the counter is symbol of body of program and ensures me that the pulse is generated by incrementation. Best regards Hamid Hosseini |
This contribution was helpful to2 thankful Users |
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