7/7/2023 6:26 PM | |
Joined: 6/29/2022 Last visit: 8/4/2024 Posts: 4 Rating: (0) |
Monitor scan time |
7/7/2023 7:17 PM | |
Joined: 9/27/2006 Last visit: 10/16/2024 Posts: 12289 Rating: (2687) |
Hello Pkkb; Your request comes with very little information, so it is difficult for us to come back with a clear answer. I invite you to tell us, next time, what model of CPU you are working with, what software (and version) you are using, and what you want to do in your project, so we have a better understanding of your problem. Sinc you posted your request in the S5 Product Conference, the reply qill concentrate on these CPUs. The S5 families of CPUs come in quite a few varieties, the screenshot below is taken from the the Technical Description manual of the S5-115U CPUs: https://support.industry.siemens.com/cs/ca/en/view/1085937 For other S5 families, S5-95U, S5-100U, S5-135U or S5-155U the details will be slightly different. If you can tell us the exact part number of the CPU you are trying to monitor the scan time on, we may be able to provide the information you need. Hope his helps, Daniel Chartier |
Last edited by: dchartier at: 07/07/2023 19:29:26Last edited by: dchartier at: 07/07/2023 19:43:25 |
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This contribution was helpful to3 thankful Users |
8/20/2023 5:18 PM | |
Joined: 6/29/2022 Last visit: 8/4/2024 Posts: 4 Rating: (0) |
How to monitor scan time of S7-400H PLC and also taken in to HMI Wincc page |
8/20/2023 7:09 PM | |
Joined: 9/27/2006 Last visit: 10/16/2024 Posts: 12289 Rating: (2687) |
Hello Pkkb; There is only one S7 program running in the S7-400H, in yge primary CPU. All data is transfered to the backup CPU once per scan cycle, over the integrated fiber-optic cable connections. So by reading the local data of your program's OB 1 block (they are shown in the screenshot below), "OB1_Previous_Cycle" for example, you will obtain the duration of the last scan cycle in ms. The screenshot is taken from the System and Standard Functions manual, ch. 1, Organizational blocks:: https://support.industry.siemens.com/cs/ca/en/view/109751826 If you want to access this value in your HMI, I suggest you copy it to an integer register, either in a DB or as an M variable of integer type, and create a tag in the HMI that will be linked to that address. Hope this helps, Daniel Chartier |
This contribution was helpful to1 thankful Users |
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