8/16/2010 3:51 PM | ||||
Joined: 9/27/2006 Last visit: 9/26/2024 Posts: 12283 Rating: (2685) |
Hello Kaleem; Where did you procure (or develop) the IEC 60870-5-103 protocol for the CP 341? To my knowledge, this protocol is not part of the loadable driver list for the CP 341: 60870-5-101 is available, but -5-103 is not:
Hope this helps, Daniel Chartier |
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8/17/2010 10:12 AM | ||||
Posts: 10 Rating: (0) |
Hope this helps, Daniel Chartier Daniel I have attached a snapshot of the Transducer Manual. It suggests using the CP340 after an RS-485 to Rs-232 converter is used. However, the CP341 was selected to connect directly to the RS-485 bus, instead of using the RS-232 converter in between. From the manual it seems that the S7-400 CP441 can connect directly. In the same parlance the CP341 was selected. Should we go back to the original and use a CP340 instead. (With an Rs-485 to RS-232 converter in between) Thanks for your time Kaleem Afzal |
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8/17/2010 3:23 PM | |
Posts: 5822 Rating: (412)
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Hello, I am sorry, I neither have an idea... but is there maybe something mentioned like the requirement for SIPLUS RIC? Best regards J_Bell |
8/17/2010 7:25 PM | |
Joined: 9/27/2006 Last visit: 9/26/2024 Posts: 12283 Rating: (2685) |
Hello Kaleem; There is one thing I am very sure of: you will need a protocol in your CP 341 to talk to the IEC 60870 slaves. The RS-485 link is simply the physical interface; you also need to "Talk" the same language as the slaves if you want to exchange data correctly. Without a protocol driver you are not able to connect. After getting a hint from J_Bell's post and looking at your document. I believe that J_Bell is right and that the connection shown on your diagram is based on the IEC 60870-5-103 protocolprovided by Siplus RIC: https://www.automation.siemens.com/mcms/topics/en/siplus/extreme/information-material/Documents/SIPLUS_RIC_Broschuere_en.pdf?HTTPS=REDIR The following is the website for general information on the Siplus RIC. It proposes "Bundles" including the S7-300 CPU , the MMC, the CP 340/341and the IEC 60870 libraries required for the communications application: www.siemens.com/siplus-ric I am not sure exactly if you can buy only the IEC 60870 libraries for your application, since you already have the CPU and the CP 341. They also refer to PCS 7 with these bunfdles: you will have to see if it is possible to run the libraries inside a Step 7 project. |
This contribution was helpful to1 thankful Users |
8/18/2010 9:01 AM | |
Posts: 10 Rating: (0) |
Daniel and J_Bellthanks for the pointers. |
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