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| 4/16/2012 12:35 PM | |
Joined: 12/1/2009 Last visit: 7/14/2025 Posts: 672 Rating:
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Hi, in order to be a profibus master, the CPUhas to have therequired interface (internal or external). https://www.automation.siemens.com/mcms/programmable-logic-controller/en/simatic-s7-controller/s7-300/cpu/compact-cpus/Documents/brochure_simatic-controller_en-43_table.pdf Yes, you can connect all your CPU's to the profibus so than they can communicate with each other. Regards. |
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| 4/18/2012 11:32 AM | |
Joined: 3/21/2006 Last visit: 1/10/2026 Posts: 10247 Rating:
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My vote is for using DP/DP Coupler. Even if it is need to spend more money. Anyway: S7-300 like a Profibus slave - What master/slave communication options are available on PROFIBUS DP? DP/DP Coupler - What are the special features of input/output addressing with the DP/DP coupler?and Configuration of the I/O Data on DP/DP Coupler
Best regards, Hristo Mihalev |
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| 4/18/2012 11:40 AM | |
Joined: 8/18/2009 Last visit: 7/28/2025 Posts: 558 Rating:
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Dear TIBI68, tell me maximum how meny slave PLC we can comunicate with one master PLC...
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Rajkiran Patil |
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| 4/18/2012 11:52 AM | |
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Joined: 3/21/2006 Last visit: 1/10/2026 Posts: 10247 Rating:
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The max. slave are limited to 32 nodes without to use some extra hardware. Best regards, Hristo Mihalev
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| 4/18/2012 11:59 AM | |
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Posts: 3 Rating:
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Thank you all for the answers. |
| 4/18/2012 12:11 PM | |
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Joined: 12/1/2009 Last visit: 7/14/2025 Posts: 672 Rating:
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Dear UMENCHO, what's the advantage in using DP/DP couplers in this case?(except they cost extra money) And what stays against just using Master/Slave configuration? Regards. |
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