3/28/2020 10:52 PM | |
Joined: 9/27/2006 Last visit: 8/30/2024 Posts: 12280 Rating:
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Hello Berguinsson; This client-server setup is not unique to the Logo! communicatiuons, it is part of the definition of the Modbus TCP. communication standard. Have a look at a document from Prosoft Technologies, more often associated with Rockwell PLC communication modules (so you can see i is not limited to Siemens equipment), where you will find how the partners in a Modbus TCP network are defined: https://www.prosoft-technology.com/kb/assets/intro_modbustcp.pdf Hope this helps, Daniel Chartier |
3/28/2020 11:47 PM | |
Joined: 9/27/2006 Last visit: 8/30/2024 Posts: 12280 Rating:
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Hello Berguinsson; I am hardly a Logo! expert, there are others in the forum that are much more experienced in Logo! communications than I am. But i can tell you that in all controllers that I have worked with that use Modbus TCP, client requests are never automatically generated, and the parameters must be programmed in the controller' software. I have found an example where the Logo! acts as a Modbus TCP client, from the Product Support pages, so you can follow the logic: With Logo!8, how do you acquire the measurement data of a Sentrom PAC3200 via Modbus TCP/IP? https://support.industry.siemens.com/cs/ww/en/view/109746315 Hope this helps, Daniel Chartier |
3/29/2020 6:28 AM | |
Joined: 12/18/2014 Last visit: 8/30/2024 Posts: 33647 Rating:
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Maybe this can help.... |
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