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| 7/11/2017 1:05 PM | |
Joined: 7/30/2012 Last visit: 2/24/2025 Posts: 335 Rating:
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Hello!!! Any One Having Example Program For MODBUS Communication Using ET200SP With S7-400H CPU...
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| 7/11/2017 4:23 PM | |
Joined: 1/3/2009 Last visit: 6/30/2022 Posts: 161 Rating:
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I suppose you are using Modbus RTU slave with ET 200SP serial module. Attached, sample project. Everything works fine, except something I was not able to fix: in case you remove serial module from I/O rack, there is no way to re-estabilish communication, unless you STOP the H system and restart (for example, from CPU switch). Modbus registers are stored in DB100 Regards Attachment400h_modbus.zip (349 Downloads) |
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Stefano Angioni |
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This contribution was helpful to
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| 7/12/2017 4:04 AM | |
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Joined: 7/30/2012 Last visit: 2/24/2025 Posts: 335 Rating:
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Hello Thanks for Your Reply |
| 2/12/2019 5:33 AM | |
Joined: 1/19/2007 Last visit: 1/10/2025 Posts: 2 Rating:
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