5/23/2019 6:44 AM | |
Joined: 12/9/2010 Last visit: 10/8/2022 Posts: 623 Rating: (77) |
Hi Loading, Monitoring should not be on during redundancy testing. This is as per H-system manual. Both systems should be exact & identical. The manual is available at-"C:\Program Files (x86)\Siemens\Step7\S7MANUAL\S7HVSYS\S7hvsysb.pdf" |
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5/24/2019 11:42 PM | |
Posts: 25 Rating: (0) |
Thank you for your reply. Could you tell me exactly where I can find this information in the manual. ex: page number |
6/10/2019 9:15 AM | |
Joined: 9/3/2008 Last visit: 9/19/2024 Posts: 928 Rating: (162) |
Hi, See the description of the CPU operating states: S7-400 Fault Tolerant Systems Manual See page 124, point 3 where it says;
Also page 135 tells this restriction during "Link up":
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Last edited by: Michael K at: 06/10/2019 09:20:46Michael |
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This contribution was helpful to1 thankful Users |
6/12/2019 1:26 PM | |
Joined: 12/9/2010 Last visit: 10/8/2022 Posts: 623 Rating: (77) |
Hi Michael, Thanks for bolstering my earlier comment !! This is very basic requirement of H system. Most of the engineers make same mistake. The H system may mis-bahave under this condition.
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6/15/2019 5:46 PM | |
Posts: 25 Rating: (0) |
Thank you very much. I got it now! |
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