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calling Modbus Master in S7300 Soft redudant system
Created by: Jazz_M at: 7/21/2011 8:45 PM (4 Replies)
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| 7/22/2011 2:12 PM | |
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Posts: 1547 Rating:
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Hi Tagalover, sorry, I don't know much about MODBUS, but Siemens has a free of charge hotline: Phone.: +49 (0)9131-7 46 111 Fax: +49 (0)9131-7 44 757 e-mail: it4.industry@siemens.com They should be able to help you. Regards, Rated X |
| 7/22/2011 5:17 PM | |
Joined: 9/27/2006 Last visit: 3/22/2025 Posts: 12344 Rating:
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Hello Tagolover; I do not know that the CP 341 can be used as 2 units, one per CPU rack, and still maintain redundancy., as you are tryiong to implement it. The following FAQ may give you a hint as to how Siemens recommends you use a CP 341 in a redundant system: http://support.automation.siemens.com/WW/view/en/42614519 As you can see in the bottom of the list profided in the FAQ, the CP 341 is shown as part of a redundant ET 200M system. By inserting a CP 341 as part of the redundant ET 200M (2 numberIM 153-2 with active backplane), a redundant connection between the masters (active and standby) and the modules of the slave are maintained at all times through Profibus-DP. You will not have the changever behaviour that you saw when using 2 different CP 341 in your project. Follow the following discussion on the subject on the forum: /tf/WW/en/Posts/3426 Hope this helps, |
| 7/22/2011 5:27 PM | |
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Posts: 3093 Rating:
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Hello Rated X, serial Modbus RTU is not supported by it4industry! Please open a support request on the service & support pages here. Regards, Kaulquappe |
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