SiePortal

The integrated platform for your product selection, buying and support workflow - bringing together Industry Mall and Online Support.

Products & Services
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Support Support
{{(apiData.Support | filter:{'rank':1}:true)[0].title}} Support
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
MySiePortal MySiePortal
{{(apiData.MySiePortal | filter:{'rank':1}:true)[0].title}} MySiePortal
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Cart ({{apiData.CartCount}})

Navigation

Increase monitoring time for safety messages

4/25/2023 1:00 PM	Rate (0)
Jasner Experienced Member Joined: 6/10/2008 Last visit: 12/1/2025 Posts: 198 Rating: (1)	Hello, I'm getting the following error in the diagnostic buffer of S7 400F CPU: Error in safety-related communication between F-CPUs incoming Monitoring time for safety message frame exceeded Start address of the output and input area (LADDR): 1880 Instance DB no. of the instruction / F application block: 1800 How can I increase this monitoring time?

Suggestion To thank Quote Answer

4/25/2023 1:54 PM	Rate (0)
ElonksuM Experienced Member Joined: 5/6/2022 Last visit: 11/27/2025 Posts: 589 Rating: (123)	Hi Jasner, In order to have as much information as possible, I would appreciate if you could attach the diagnostic buffer in .txt format. We are waiting for your reply. *Update: Apart from the buffer, here is a FAQ and a post where you will find information about F-monitoring, in case you are interested: "SIMATIC STEP7 Safety Advanced: F Execution Times, F Runtimes, F Monitoring and Reaction Times" "F-monitoring time" Best regards!
	Last edited by: ElonksuM_SN_BN at: 04/25/2023 14:04:19 If this Information really helps, you could use the Rate function Thank you.
Suggestion To thank Quote Answer

4/26/2023 6:15 AM	Rate (0)
Jasner Experienced Member Joined: 6/10/2008 Last visit: 12/1/2025 Posts: 198 Rating: (1)	Hello Elon and thank you for the reply. the complete buffer with 120 events contains one very same message. I have attached the file. I wonder where exactly I can find this time parameter to set. Attachment Diagnose.txt (763 Downloads)

Suggestion To thank Quote Answer

4/26/2023 6:20 AM	Rate (0)
Jasner Experienced Member Joined: 6/10/2008 Last visit: 12/1/2025 Posts: 198 Rating: (1)	I'm not sure if I should change this time setting for all F_IO in the HW Config in SIMATIC Manager? Attachment F_IO_time.png (624 Downloads)

Suggestion To thank Quote Answer

Share this page:

Share this page on...