6/29/2019 9:26 PM | |
Joined: 5/6/2010 Last visit: 8/26/2024 Posts: 1977 Rating:
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Hello Alex3110, we understand that you want to use a Ethernet communication. If you want to use the I/O-device then you have a "master" and all the other PLC's are "slaves". You can also use PUT/GET but then you must use not optimized DB at all the PLC's. You can also use a the function T_SEND and T_RCV. Otherwise can you also communicate via Modbus and use MB_Server and MB_Client. In my opinion is the best way you use one PLC as a relay-station. Please look at this document - CPU-CPU Communication with SIMATIC Controllers regards |
Last edited by: Jen_Moderator at: 07/01/2019 12:25:08Optimized link. |
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8/1/2019 10:39 AM | |
Posts: 111 Rating:
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Find a design that will declare another PLC as Master if no link is found after a while. UDP Broadcasting may offer another option. When you find a control idea to rotate the "master" token, then you can use the example: |
8/1/2019 12:02 PM | |
Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating:
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hi Alex, I also think I-Device Communiation is the best way to do what you want to do. See this application sample for more Information: Configuration and Application of the PROFINET I-Device Function When you don´t want to use I-Device, you need to use other communication connections between the devices. This FAQ shows you the possibilities with S7-1200 controllers: hope this helps, regards, |
FCK WAR! |
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