Skip to content
Ask A Question
  • There are no suggestions because the search field is empty.

TOP Server DF1 connection to a ControlLogix

Is it possible, using the TOP Server, to establish a DF1 connection to a RSLogix 5000 Series controller?

It is absolutely possible to establish a connection to a ControlLogix or CompactLogix controller using the TOP Server DF1 Serial Driver. This will require a Null Modem Cable, and will require that tags in the RSLogix5000 controller are mapped to PLC/SLC addresses. To configure this connection:

  1. Open RXLogix5000 and navigate to the Logic ⇒ Map PLC/SLC Messages option.
  2. Map all desired Controller tags to equivalent PLC/SLC files - the file number is not important here, but does have to be unique (Note that these tags have to be 32 bit data types, booleans will need to be transferred to an array)
  3. Create a TOP Server Channel using the DF1 driver, and verify that the serial port communication parameters between the TOP Server and controller match. The controller should be set up to use the DF1 Point to Point protocol under the the System Protocol tab.
  4. Add tags to TOP Server (assuming that static tags are needed) using the file numbers that were configured in RSLogix 5000. Since these file number are not true PLC/SLC files in the controller, the standard file numbers/datatypes (e.g N7, F8, etc.) do not apply.

If using DINTs in the RSLogix5000 Controller, the Device type in TOP Server must be set to MicroLogix. The MicroLogix is the only controller that supports "L" data types, which is the only means available to read DINTs from the controller, given how they are stored in RSLogix5000 series PLCs.