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Disclaimer: This document is written in the hope that you can utilize for your own education to gain knowledge of PLC systems (should you decide to utilize this document). Although I believe the information in this document to be accurate, it is YOUR responsibility to verify this information before implementing it in any way, especially when damage to personnel or equipment could result. By continuing to read this document, you agree to hold no one who writes, modifies, or distributes this document liable in any way (even negligence). Due to the wide variety of plant applications, some of the examples in this document may be prohibited at your location, or could cause damage to equipment, or harm personnel.
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Configuring the DF1 Driver in RSLinx


The DF1 Driver is used for point to point communication over RS232 between a COM port on a PC, and the serial port (Channel 0) of a processor. The following steps will take you through a sample configuration of the DF1 RS232 driver.



  1. Open RSLinx Communication Server. If there is no short-cut on the desktop, you can access RSLinx by clicking Start | Programs | Rockwell Software | RSLinx | RSLinx




  2. Click 'Communication' on the menubar, then choose 'Configure Drivers'.



  3. From the Available Driver Types pull down menu, choose 'RS232 DF1 Devices', then press the ADD NEW button.



  4. For this example, the name can be left at default. Press OK.




  5. Although the communication parameters can be entered manually, if you are currently connected to the processor, just hit the 'AutoConfigure' button. RSLinx will hit the processor with different baud rates, and different settings, until it finds a setting it gets a response on. When this happens, you will get a message that the autoconfiguration was successful. Press OK when finished.




  6. You will see the driver is now running. Close the “Configure Drivers' screen.




  7. To test your drivers, click the RSWho icon in the toolbar of RSLinx.



  8. Click the DF1 driver (the one you just cofnigured) on the left side of your screen. The devices you are communicating with will appear on the right.



To go online, you must go to RSLogix at this point.