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| 3/9/2010 10:54 PM | |
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Posts: 27 Rating:
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I am putting together an S7-300 Redundant system and will need to exchange data with 10 remote CPU315s. The amount of data from each CPU will be about 32 bytes. The redundant processors are 317-2DPs and I wish to use the CPU interfaces for this communication. The redundant processors and the 10 remote processors will be linked together on 1 fiber ring network. I was thinking of simply using "Get" and "Put" instructions to exchange the data but I want to verify that this will work with Redundancy. I have attached a crude architrcture sketch. Your input and suggestion would be greatly appreciated.AttachmentProposed Architecture.pdf (25 Downloads) |
| 3/10/2010 12:26 AM | |
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Posts: 27 Rating:
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I see that I have made an error in my architecture so I have revised it in the attached .pdf. In this revision I have added a CP343-1 for my redundant link and I am using the CP342-5 for myremote network. In addition to my previous question, would it be unwise to have my redundant link on the same DP network as the remote CPUs? AttachmentProposed Architecture.pdf (26 Downloads) |
| 3/15/2010 2:58 PM | |
Joined: 12/9/2009 Last visit: 4/5/2022 Posts: 156 Rating:
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Hello, in the following manual you can find more information about a fiber optic ring with PROFIBUS OLM: http://support.automation.siemens.com/WW/view/en/24164176 The S7 communication is supported only as server via the integrated RS485 interface (DP interface)of the S7-300 CPU. When you want to use the client function with FB14 "GET" and FB15"PUT" you will need a CP342-4. Here you can find more information about the protocols which are supported by S7-300 and S7-400 CPUs: http://support.automation.siemens.com/WW/view/en/24352751 Best regards Little Holmes |
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