10/20/2021 11:40 PM | |
Joined: 9/27/2006 Last visit: 9/21/2024 Posts: 12282 Rating: (2684) |
Hello rbpineo; OB 100 is a warm startup OB, as described in the System and Standard Functions manual, . 1, Organization Blocks.: https://support.industry.siemens.com/cs/ww/en/view/109751826 That means the evet that triggered the call of OB 100 was a startup, a coming out of Stop mode. Your CPU went to Stop for a few milliseconds, basically. Please indicate which diagnostic OBs are instlled in your program, OB 80, OB 82, OB 83, OB 86.... OB 122; There will be triggered by a specific diagnostic event (OB 86 is triggered by the loss of a remote slave or IO Device, for example) and they have the property of keeping the CPU in Run mode even with a major fault (with BF and SF LEDs active). Start by looking in the diagnostic buffer of the CPU and check whether one of these diagnostic OBs is declared missing or unavailable, that should already give a clue to what makes the CPU fall into Stop. Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 10/20/2021 23:40:50Last edited by: dchartier at: 10/26/2021 22:23:19 |
|
Follow us on