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Entry type: FAQ Entry ID: 109744406, Entry date: 08/01/2019

How do you configure the CP 343-1 as PROFINET I-device in STEP 7 (TIA Portal)?

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Via a CP 343-1 you can incorporate the SIMATIC S7-300 automation system as an intelligent PROFINET IO device (I-device) in your plant.

Proceed following the instructions below to configure the CP 343-1 as I-device in STEP 7 (TIA Portal):

  1. Mark the CP 343-1 in the Network view or Device view. The properties of the CP 343-1 are displayed in the inspector window.
  2. In the "General" tab under "PROFINET interface [X1] > Operating Mode" you enable the operating mode "IO device".

    Fig. 1
    If you wish to incorporate an I device in PCS 7, then you must also enable the function "Parameter assignment of PN interface by higher-level IO controller" (see Fig. 2).

    Fig. 2

    Even if the I device is configured in STEP 7 V5.x, the function "Parameter assignment for the PN interface and its ports on the higher-level IO controller" must be enabled (see Fig. 3).

    Fig. 3
  3. In the "General" tab under "PROFINET interface [X1] > Operating Mode > I Device Communication" you create the transfer areas and click the "Export" button. The "Export generic station description file (GSD)" dialog opens.

    In Fig. 4, in light of the later PROFINET controller, 32 bytes of input data and 22 bytes of output data have been created.


    Fig. 4
  4. Click the "Export" button to export the generic station description file (GSD) of the CP 343-1. 

    Fig. 5
  5. Select the menu "Tools > Manage general station description files (GSD)". The "Manage general station description files" dialog opens.

    Fig. 6  
  6. Select the source path where the GSD of the CP 343-1 is stored. The GSD of the CP 343-1 is displayed under "Content of imported path". Select the GSD of the CP 343-1 and click the "Install" button.

    Fig. 7

  7. Now you can use the GSD in each project. In STEP 7 (TIA Portal) you will find the installed GSD of the CP 343-1 in the Hardware Catalog under "Other field devices > PLCs & CPs > SIEMENS AG".

    Fig. 8

  8. Via the GSD you incorporate the CP 343-1 into the PROFINET IO system of the IO controller.

    Fig. 9

  9. For data exchange in the user program of the S7-300 CPU you call the PNIO_SEND and PNIO_RECV instructions. The instructions are located in STEP 7 (TIA Portal) in "Instructions" task card under "Communication > Communications processor > SIMATIC NET CP > PROFINET IO".

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