Applies To:
  • CitectSCADA 3.21 4.10

The KF protocol has been superseded. 

The KF serial protocol which supports only the Allen Bradley SLC500 series of PLC is no longer supported. The KE protocol have been updated to include support for the AB SLC 500 series. Users can use the KE500 instead of KF by changing the protocol from "KF" to "KE500" in the protocol field of their IO Devices form. The KE500 can access floating point and string data files in the SLC 500. The KE protocol only support half-duplex and BCC error checking communication setting.

Also the IO device address has changed from decimal for KF to octal for the KE500 protocol. The custom/express wizard in versions 3.X and 4.X give a contrary indication.