1/5/2009 11:20 AM | ||||||||||
Joined: 9/27/2006 Last visit: 10/3/2024 Posts: 12283 Rating: (2685) |
Hello AnUyen; The CP 340 could do the job (also the CP 341). Look at the following description: The CP 340 communications processor provides the following functionality:
– ASCII driver – Printer driver Table 1-1 Module variants of the communications processor Module Order Number Integrated Interface
For more information look at the CP 340 manual: PtP coupling and configuration of CP 340 http://support.automation.siemens.com/WW/view/en/1137332 Hope this helps, Daniel Chartier |
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Last edited by: dchartier at: 1/5/2009 11:20 AM |
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1/5/2009 1:25 PM | |
Joined: 9/27/2006 Last visit: 10/3/2024 Posts: 12283 Rating: (2685) |
Hello AnUyen; RS-485 is an electrrical standard which allows 32 participants on a single segment. As the CP 340 allows a RS-485 interfcae, it supports multipoint connections (by definition). Here is a FAQ that mentions the fact (although not as directly as you would like, probably...) http://support.automation.siemens.com/WW/view/en/416341 You will have to program a different P_Send function for each slave you wish to connect to, changing the LADDR (local address) parameter of each of the slaves to match the one provided in NETPRO, under "connections"where you will configure your PtP network. Hope this helps, Daniel Chartier |
1/5/2009 1:56 PM | |
Posts: 8 Rating: (0) |
Dear Daniel Chartier, Thanks you so much! Your suggestion is very useful to me. I'll try with these CPs. Thanks! BR, AnUyen. |
1/9/2009 10:14 AM | |
Posts: 8 Rating: (0) |
Dear Daniel Chartier and Late, I have post my sketch system and data frame from those display at this thread, please view and clarify for me ( https://www.automation.siemens.com/tf/WW/en/Posts/26448#116837 ) ...Thank you very much for your attention! BR, AnUyen |
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