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run cpu when cpu is stop by software

Created by: asal2 at: 6/29/2012 4:44 PM (1 Replies)

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6/29/2012 4:44 PM	Rate (0)
asal2 Advanced Member Joined: 8/1/2010 Last visit: 5/28/2023 Posts: 1 Rating: (0)	Is there any possibility that the CPU is in stop mode through the software it will run. I need help, for the cpu to stop mode and it solved the problem so I can run automatic CPU. For example, when the PROFIBUS cable is cut, it is true when the CPU will automatically berun cpu: c7-634
	Last edited by: asal2 at: 6/29/2012 5:28 PM
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6/29/2012 5:53 PM	Rate (0)
miami Platinum Expert Joined: 8/31/2005 Last visit: 8/20/2024 Posts: 2198 Rating: (328)	No you can't set a CPU to run by it's program. I case a several errors, like the lose of a PROFIBUS station the CPU calls the the coresponding error OB. If this does not exist in the CPU it stops. If you create a OB86 (even if empty) and download it, the CPU will not stop any more. Good programmers use the informations in the variables of the OB to check the reason and program a reaction if necessary. See chapter 1 of the System Software for S7-300/400 System and Standard Functions to find out waht OB you can use. In your case, use OB86 and OB122

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