10/14/2010 4:58 PM | |
Joined: 1/28/2009 Last visit: 9/10/2024 Posts: 6849 Rating:
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Hi In H parameter window of CPU 414H (H.W) there is an option for selecting Datablock for I/O redundancy.I have already read the online help but I don't know isit for red I/O on main rack(400) or for red I/O on ET200M slaves? Best regards hdhosseini Attachmentproperties.zip (152 Downloads) |
10/15/2010 12:40 AM | |
Joined: 7/2/2008 Last visit: 8/26/2024 Posts: 928 Rating:
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Hello hdhosseini, It doesn't matter if redundant I/Os are centrally located (S7-400 modules) or distributed over Profibus (ET200M). In both cases the 2 data blocks are required. Best regards. H-H |
10/15/2010 7:00 AM | |
Joined: 1/28/2009 Last visit: 9/10/2024 Posts: 6849 Rating:
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Dear H-H what are they actually utilized for? Thanks in advance |
10/26/2010 11:00 AM | |
Joined: 7/2/2008 Last visit: 8/26/2024 Posts: 928 Rating:
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Hello hdhosseini, Sorry for such a late reply. These 2 data blocks are created by FC450 (RED_INIT). The FC uses these data blocks for I/O redundancy management. I believe they may contain data like which modules are passivated and which are not and maybe some other data that's not important to know about unless you are going to write a similar code and compete Siemens Best regards. H-H |
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