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8/11/2008 11:23 AM | |
Posts: 9 Rating: (0) |
in PCS 7..can i use failsafe timer,failsafe OR,failsafe AND instead of standard block for fail safe program or only F-Di,F-AI,F-DO is suffiecent |
8/11/2008 11:38 AM | |
Posts: 9 Rating: (0) |
have used F-ch-Ai ,Di and Do but ,i am confused whether i have to use standard block or failsafe block for inetrnal logic(e.g. And /Or/Timer) |
8/11/2008 1:13 PM | |
Posts: 9 Rating: (0) |
in fail safe program with PCS 7 ..for internal logic i have to use F-OR/F-AND -F-TIMER or standard TIMER/OR/AND blocks |
8/12/2008 4:33 PM | |
Joined: 9/27/2006 Last visit: 10/8/2024 Posts: 12284 Rating: (2685) |
Hello 2CKP; You can use standard blocks along with F-blocks to create your program; however, a program using both faisafe and standard blocks will not compile to a failsafe program. Since you are designing a failsafe program for a burner system, I would recommend you use the failsafe timers and generally only failsafe blocks for your application. You will find confirmation and many more details in the manual: S7 F/FH Systems; Configuring and Programming Programming and Operating Manual Hope this helps, Daniel Chartier. |
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