8/3/2020 11:50 PM | |
Joined: 9/27/2006 Last visit: 8/27/2024 Posts: 12279 Rating:
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Hello dacastillo; Do you mean how you need to connect the 2 PLCs physically to the single Profibus port on your HMI? The screenshot below shows the "normal" way to setup a Profibus-DP network, using Profibus cable and connectors. Profibus-DP uses a daisy-chain, linear bus configuration, You could c0nnect PLC1, then PLC2, the the HMI; Or PLC1, HMI, PLC2. or... It all depends on the topography of your plant, connect the closest nodes as they present themselves, logically. Termination is generally available directly on the Profibus connectors; the first and the last physical nodes must have the terminator switch at ON. The figure is taken from the Profibus-DP Installation Guidelines, from Profibus.com, a document you should look at for more information on the subject of Profibus networks. https://www.profibus.com/download/profibus-installation-guidelines/ Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 08/04/2020 01:30:56Last edited by: dchartier at: 08/04/2020 01:33:06 |
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8/4/2020 7:30 AM | |
Joined: 3/30/2020 Last visit: 8/27/2024 Posts: 4705 Rating:
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Hi. Get a Profibus connector. |
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8/4/2020 6:56 PM | |
Joined: 8/9/2017 Last visit: 7/11/2022 Posts: 3 Rating:
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My problem is more how I connect and configure two plcs on one profibus subred and how they communicate with the screen. |
8/4/2020 7:21 PM | |
Joined: 8/9/2017 Last visit: 7/11/2022 Posts: 3 Rating:
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I think my best option is to use a DPDP coupler, but I am locking if there's another way of do this whitout the coupler. |
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