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Summary: |
How can I communicate to Siemens Industrial Ethernet with a standard Ethernet network card instead of the CP1413 card from Siemens? |
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Siemens has software called SOFTNET-S7
that emulates the CP1413 card. This software comes in two versions,
Basic and Extended. The difference between the two is the number of
PLC's you can connect to; the Basic version handles eight
connections and the Extended version handles 64 connections. To get
the best price on these packages please contact your local Siemens
distributor.
Once you have installed SOFTNET you will have two icons in your Start menu: COML S7 and Setting the PG-PC Interface (the latter can also be found in the Control Panel). The first configuration that has to be made for the COML S7 program involves the SIMATIC.NET form that appears at start up. See below for an explanation of the fields.
In the "Edit S7 connection list", the following fields should appear:
When these settings have been entered correctly, press the Insert button and you should see the specified Name appear in the S7 connection list. To reuse these settings, go to File | Save Text DB As. When this has been done you need to generate a binary DB. This will be done from File | Generate Binary DB As. This database will be used from the "Setting the PG-PC Interface" program. The next step is to start Setting the PG-PC Interface. In the Access Path tab you should have a dropdown menu called "Access Point of Application". Select Add/Delete and you will get a form where you can add/delete an Access Point. See below for an explanation of the fields.
When you click Add, the name of this Access Point should appear in the lower part of the form. After clicking close to leave this form, your Access Point should be selected in the dropdown menu. (To be able to communicate over TCP/IP, this network protocol has to be installed in NT; please see the NT help for instructions of how to do this.) In the "Module Parameter Set Used" box, select the connection you want to use. Now you have to select the Binary database we created earlier in the COML S7 program. Click the Properties button and select the S7 Protocol tab. Use the search button or enter the full path to the database you created earlier - this file has the LDB extension. When the correct file is selected you are finished the configuration and can exit this program. If you want to check that the connection to your network card is OK you can use the Diagnostics button. The SOFTNET Help gives a lot of information regarding the settings as well. See below for Citect configuration.
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