7/23/2010 9:20 AM | |
Joined: 4/24/2006 Last visit: 9/20/2024 Posts: 8742 Rating: (1168) |
Dear selvkumaar, Perhaps this link might help: how can you reduce memory usage with Multi instancing? Best regards, Wizard |
This contribution was helpful to1 thankful Users |
7/23/2010 11:49 AM | |
Joined: 6/4/2010 Last visit: 9/10/2024 Posts: 72 Rating: (0) |
Nothing found as Good other then BAD. When power goesOFF and then ON (in 30s interval), the TimerET value&PT value are same and the Timer output(Q) is ON even if the Timer ET value is 50s while the PT value is 6h10m30s before power goes OFF. I DON'T KNOW, WHY? The link(how can you reduce memory usage with Multi instancing?) describes the way to Multi Instancethen what the use of In-Active Multi Instancein the Timer call options (See the attachement from previous post). Don't forget to tell ifanyone know. |
Last edited by: selvkumaar at: 7/24/2010 8:20 AMRegards, |
|
7/24/2010 8:12 AM | |
Joined: 6/4/2010 Last visit: 9/10/2024 Posts: 72 Rating: (0) |
Ok. Due to File Size limit, you can find the simple Project Here. That projectused a Multi Instance Timer as described in the link (how can you reduce memory usage with Multi instancing?) PROBLEM DESCRIPTION: The Timer valuejumps to Preset value after power ON. The Timer doesn't Hold the current valueafter power ON. For your convenience,please see theattached Picture. |
Regards, |
|
7/24/2010 5:03 PM | |
Posts: 89 Rating: (16) |
I have tested your program again and it works fine with all the options you mention.
|
This contribution was helpful to1 thankful Users |
7/29/2010 1:11 PM | |
Joined: 6/4/2010 Last visit: 9/10/2024 Posts: 72 Rating: (0) |
@Gorp: You are right! But theprogram works only with new PLC until few times. After some tries, the problem (which is described in my earlier post) repeats itself. Now I have the lack of confidence to implement the S7-1200 in Real time. If anybody implements the Retentive Timer in your real time project and its work fine without any problem, thendon't forget to let me know.
|
Last edited by: selvkumaar at: 8/5/2010 4:41 PMRegards, |
|
Follow us on