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How can generate a s7 300/400 plc battery failure?

1/22/2024 4:35 PM	Rate (0)
H045 Joined: 1/2/2023 Last visit: 3/8/2025 Posts: 2 Rating: (0)	Hello Experts, How can i generate a s7 300/400 plc battery failure input to SCADA for indiaction or how to use OB81 for it. ------------------------------------------------------------------------------------------ Split from FREQUENT CPU BATTERY FAILURE.
	Last edited by: Jen_Moderator at: 01/23/2024 11:15:26 New subject after splitting
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1/23/2024 11:52 AM	Rate (0)
Hazard_7 Bronze Member Joined: 5/30/2022 Last visit: 12/17/2025 Posts: 634 Rating: (103)	Hi H045, In the Step 7 manual, page 504 you can find the parameters already defined when you create the OB81 in the program. In the parameter OB81FLTID you see the error produced by the CPU and in the OB81_RACK_CPU in which CPU the battery failure occurs: SIMATIC Programming with STEP 7 V5.5
	If this information really helps, you could use the Rate function. Best Regards.
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1/23/2024 3:39 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 12/30/2025 Posts: 6890 Rating: (1368)	Dear user, You can find a solution in the following topic: OB81 (PS_FLT) EXECUTE I hope it helps, hdhosseini
	Demo Channel on Youtube
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