Setting the End-of-Line (EOL) Switch
Each field controller has an EOL switch, which, when set
to ON, sets the controller as a terminating device on the
bus. See
for the EOL switch location. The
default EOL switch position is Off.
Figure 11: End-of-Line Switch Positions
To set the EOL switch on a field controller:
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.
Setting the Input and Output
Jumpers
Risk of Electric Shock:
Disconnect supply power to
the field controller before attempting to adjust the Binary
Output Source Power Selection Jumpers. Failure to
disconnect the supply power may result in electric shock.
Mise En Garde: Risque de décharge électrique
Débrancher l'alimentation de l'controller avant tout
réglage du Binary Output Source Power Selection
Jumpers. Le non-respect de cette précaution risque de
provoquer une décharge électrique.
Binary Output (BO) Source Power
Selection Jumpers
Risk of Electric Shock:
Disconnect supply power to
the field controller before attempting to adjust the Binary
Output Source Power Selection Jumpers. Failure to
disconnect the supply power may result in electric shock.
Mise En Garde: Risque de décharge électrique:
Débrancher l'alimentation de l'controller avant tout
réglage du Binary Output Source Power Selection
Jumpers. Le non-respect de cette précaution risque de
provoquer une décharge électrique.
Important:
Do
not
connect an external power source
to a binary output (BO) when the BO power
source jumper is in the internal power (INT)
position. Connecting external power to a
BO that sources internal power can damage
the controller and void any warranties.
The BO source power selection jumpers determine
whether a BO provides internal power (sourced from the
field controller) to the output load (INT position) or
requires an external power source (EXT position) for the
output load.
shows an example of a controller
BOs and the associated power selection jumpers to the
right of the BOs terminal block.
Figure 12: Example Binary Outputs and the
Associated Source Power Jumper Positions
21
FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions