CODESYS - the IEC 61131-3 automation software

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 Post subject: Siemens S7-1200 Profinet
PostPosted: Tue Aug 14, 2018 12:50 pm 
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Joined: Thu Aug 09, 2018 9:45 am
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I am setting up a system using Codesys V3.5 on a Raspberry Pi as a Profinet controller getting data from a Siemens S7-1200 enabled as an I/O device.

I have imported the GSDML file from the Siemens TIA development environment and all the expected data blocks are identified and the PLC and Codesys say that everything is OK but I am not getting any data from the PLC, all values are at 0.

I have looked at the network using wireshark and I see LLDP packets from the PLC but no data, I am not new to PLCs but I am to Profinet so I understand that this is my error, but if anyone can point me in the right direction of things to check then I would be very grateful


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PostPosted: Wed Sep 05, 2018 3:39 pm 
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Joined: Mon Sep 03, 2018 8:02 pm
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Is the PNIO status of the device 0x81813F02 (DCP no RealStationName)? If so, there could be a mismatch in device names. Your project should reflect what you get through the LLDP/DCP packets from the device.


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PostPosted: Fri Sep 28, 2018 10:49 am 
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Joined: Fri Feb 23, 2018 3:41 pm
Posts: 20
Did you checked that Inside TIA portal you are sending values in profinet IO addresses ?


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