3/17/2019 7:49 AM | |
Posts: 5 Rating: (0) |
I am using LOGO ver-8 i am using Hours counter for recording hours of motor run (output Q1) running time i need this lapsed hours - or total running hours to be retained even if panel is switched off for maintenance but Retentivity option is not active though it is ticked i am using only LADDER logic how i tried both ways keeping RAL open and as well looping R and RAL together for resting time ------------------------------------------------------------------------------------------ |
Last edited by: Raman13 at: 3/17/2019 8:03:38 AMLast edited by: Jen_Moderator at: 3/18/2019 7:59:50 AMNew subject after splitting |
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3/18/2019 6:00 AM | |
Posts: 5 Rating: (0) |
thanks for reply. I will leave the RAL as open point load the program in PLC and check the same in machine |
3/18/2019 10:14 AM | |
Joined: 2/22/2008 Last visit: 8/6/2024 Posts: 2698 Rating: (207) |
Have you ever checked the accuracy of the original operating hours counters ? If you have a motor with a maximum running of 59s each time, you will get operating hours of 0h 0m after years, because Siemens only count full minutes. Every beginning time less than 1 minute will be lost. You can use the attached ladder example for better accuracy. The only disadvantage is a 1 minute delay in the display, but this is better than the original version. Regards, Scorp AttachmentOperating hours.zip (216 Downloads) |
3/20/2019 7:15 AM | |
Joined: 12/18/2014 Last visit: 9/19/2024 Posts: 33799 Rating: (4199)
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See attachment. AttachmentOnline help to hours counter.pdf (221 Downloads) |
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