Setting the End-of-Line (EOL) switch - BCPro - Facility Explorer - CH-PCX3733-0 - Field Device - FX-PCX37 Expansion Input/Output Module

PCX3733 Expansion Input/Output Module Installation Guide
Product
Controls > Input/Output Controls > FX-PCX37 Expansion Input/Output Module
Document type
Installation Guide
Document revision
C
Version
Revision date
2020-11-11
docpartnumberlabel
Part No.
Part number
24-10143-1159

About this task

Each expansion module has an EOL switch, which, when set to ON, sets the expansion module as a terminating device on the bus. The default EOL switch position is OFF.

Figure 1. End-of-Line switch positions

To set the EOL switch, complete the following steps:

Procedure

  1. Determine the physical location of the expansion module on the FC bus.
  2. Determine if the expansion module must be set as a terminating device on the bus.
    Note: For detailed information regarding EOL termination rules and EOL switch settings on FC buses, refer to the following documents depending on your system (FX or BCPro): MS/TP Communications Bus for the BCPro System Technical Bulletin (LIT-12011908) or FX-PC Series Controllers MS/TP Communications Bus Technical Bulletin (LIT-12011670) .
  3. If the expansion module is a terminating device on the FC bus, set the EOL switch to ON. If the expansion module is not a terminating device on the bus, set the EOL switch to Off.

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