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S7- distributed Safety, Problems with monitoring AI-signal in safety program
Created by: Jorpis at: 10/17/2013 7:38 AM (2 Replies)
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| 10/17/2013 7:38 AM | |
Joined: 7/9/2013 Last visit: 8/27/2025 Posts: 1 Rating:
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Hi I have a problem to monitoring the analog value in my Safety program (FB1) I use PLC card F-AI 6, and like you see on the attachment there is no problem to monitor the value in FC200 (not safety block), and directly in hardware confiq, but the value is just 0 in my safety program. Any tips? AttachmentScreenshots.zip (255 Downloads) |
| 10/20/2013 12:43 PM | |
Joined: 12/22/2006 Last visit: 1/25/2022 Posts: 1742 Rating:
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Hello, If a safety input delivers a zero value, it is in my opinion the consequence of a safety issue (module is passivated, or the discrepancy is to high, or the was a wiring problem at a given time, ...). Did you look to the diagnostic of the module itself with Step7? Did you implement an ack in your program to reintegrate faulty channels? Here a link about passivation/reintegration: http://support.automation.siemens.com/WW/view/en/22304119 |
Last edited by: jklm at: 10/20/2013 12:46 PMBest regards |
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