9/11/2020 8:25 PM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello Thomas; Which Modbus TCP library re you using for your CP 343-1? Modbus TCP CP library: 6AV6676-6MB00-6AX0? If this is the case: How do you establish a Modbus/TCP communication from a SIMATIC S7-300/S7-400 and where can you find further information? https://support.industry.siemens.com/cs/ww/en/view/22660304 SIMATIC SIMATIC Modbus/TCP communication using CP 343-1 and CP 443-1 https://support.industry.siemens.com/cs/ww/en/view/103447617 The second link if the manual for the Modbus TCP CP blocks. You will see in the section"Licensing/ Missing or incorrect license" that the blocks can run without license, but until you purchase and install it (the procedure is described in the manual) your CPU will behave as it is in fault (although it still runs) and your diagnostic buffer will fill up with error messages linked to that missing license. So it is more an annoyance than an impediment, but in an industrial setting clients will not accept a "faulty CPU"... Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 09/11/2020 20:26:10 |
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9/14/2020 8:49 AM | |
Joined: 10/3/2008 Last visit: 8/28/2024 Posts: 961 Rating: (124)
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Hi, Wüstenräuber |
9/16/2020 2:22 PM | |
Joined: 8/18/2020 Last visit: 9/10/2024 Posts: 14 Rating: (0) |
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9/16/2020 2:22 PM | |
Joined: 8/18/2020 Last visit: 9/10/2024 Posts: 14 Rating: (0) |
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9/16/2020 2:22 PM | |
Joined: 8/18/2020 Last visit: 9/10/2024 Posts: 14 Rating: (0) |
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