Setting the End-of-Line (EOL) switch - Metasys - MS-FAC2611 - Field Device - FAC26 Advanced Application Field Equipment Controller

FAC2611 Advanced Application Field Equipment Controller Installation Guide

Brand
Metasys
Product name
FAC26 Advanced Application Field Equipment Controller
Document type
Installation Guide
Part number
24-10143-187
Document revision
L
Revision date
2019-10-18
Language
English

About this task

Each field controller has an EOL switch, which, when set to ON, sets the controller as a terminating device on the bus. See Removing the Controller cover for the EOL switch location. The default EOL switch position is Off.

Figure 1. End-of-Line switch positions

To set the EOL switch on a field controller:

Procedure

  1. Determine the physical location of the field controller on the FC bus.
  2. Determine if the controller must be set as a terminating device on the bus.
    Note: Refer to the MS/TP Communications Bus Technical Bulletin (LIT-12011034) for detailed information regarding EOL termination rules and EOL switch settings on FC buses.
  3. If the controller is a terminating device on the FC bus, set the EOL switch to ON. If the controller is not a terminating device on the bus, set the EOL switch to Off.

    When a controller is connected to power with its EOL switch set to ON, the amber EOL LED on the controller cover is lit.