RSLinx DF1 Driver 1

Configuring the RSLinx DF1 Driver

In this section, we’ll set up the RSLinx DF1 Driver.  Communications is very important in Industrial Automation.    If you cannot communicate, you cannot go online to troubleshoot or change the program in your system.   This document will guide you through Configuring the DF1 Driver in RSLinx.   RSLinx is the communication server that interfaces between your processor and RSLogix/Studio 5000.   We will use the same procedure to an SLC5/03 or higher, Micrologix, or PLC-5.  The ControlLogix L6x or earlier has a serial port by you can communicate using the DF1 Driver.

What you will need:

To communicate with your ControlLogix system, you will need a 1756-CP3 cable (or other null modem cable).  You will also need RSLogix/Studio 5000 installed on your computer with RSLinx, and an available RS232 port on your PC.  New computers are not usually equipped with an RS232 port, so you can use a USB to Serial adapter.

If you are using a Micrologix 1000, please use a 1761-CBL-PM02 cable.  If you are connecting to a PLC-5, realize that the PLC-5 has a 25pin RS232 port, so you may need a 9 to 25 pin adapter.

1)  Open RSLinx Communication server

Access RSLinx at it’s default location, which is under Start | All Programs | Rockwell Software | RSLinx | RSLinx Classic.  If your computer has a shortcut on the desktop to access RSLinx, you will see the following icon:

RSLinx Open


2)  Go to the “Configure Drivers” screen

Next, we will click on Communications | Configure Drivers within RSLinx.   A driver is just a set of instructions that tell your software how to interface with the hardware.


3)  Choose “RS232 DF1 Devices”

The list of drivers can look very intimidating, but keep in mind that there are probably only a few drivers on the list that you may need to be concerned with for your location.   Of course we need to choose the RS232 DF1 Devices driver.

RS232 DF1 Devices

Next, you will be prompted to enter a name for the driver.   Here, we can just hit OK.


4)  Configure the RSLinx DF1 Driver

RSLinx makes this step very easy.   We do need to know which COM port your RS232 port is appearing at though.    If you are unsure of this, go to your “Device Manager” in Windows.   Then, press the + next to ports, then you will see the COM Ports that are available.    In our case, the port is COM1.  As long as you are connected to the processor, and the port is set at DF1 (which is default), you should have no problem using the Autoconfiguration feature.  Finally, press the Autoconfig button, and you should get a message that the Autoconfiguration completed successfully.  Finally, press OK, and close the “Configure Drivers” screen.

RSLinx DF1 Configuration

5)  Verify Communication through the RSLinx DF1 Driver

Of course to make sure you are communicating, go to the RSWho Screen.  The RSWHO screen will verify communication.



Next, select the DF1 Driver on the left side of your screen.

RSWho processor

Consequently, you will see your processor appear on the right side of the screen.

For more information, visit the SLC-500 or ControlLogix Category Page.

— Ricky Bryce

Leave a comment

Your email address will not be published. Required fields are marked *

seventy two − = sixty seven

One thought on “RSLinx DF1 Driver