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ATTENTION
Risque de décharge électrique.
Débrancher l'alimentation avant de réaliser tout rac-
cordement électrique afin d'éviter tout risque de
décharge électrique.
CAUTION
Risk of Property Damage:
Do not apply power to the system before checking all
wiring connections. Short circuited or improperly con-
nected wires may result in permanent damage to the
equipment.
ATTENTION
Mise En Garde: Risque de dégâts matériels:
Ne pas mettre le système sous tension avant d'avoir
vérifié tous les raccords de câblage. Des fils for-
mant un court-circuit ou connectés de façon incor-
recte risquent d'endommager irrémédiablement
l'équipement.
Important:
Do not exceed the controller electrical
ratings. Exceeding controller electrical ratings can
result in permanent damage to the controller and
void any warranty.
Important:
Use copper conductors only. Make
all wiring in accordance with local, national, and
regional regulations.
Important:
Electrostatic discharge can damage
controller components. Use proper electrostatic
discharge precautions during installation, setup, and
servicing to avoid damaging the controller.
For detailed information on configuring and wiring
an MS/TP Bus, FC bus, and SA bus, refer to the
MS/TP
Communications Bus Technical Bulletin (LIT-12011034).
Terminal blocks and bus ports
See for terminal block and bus port locations on the
controller. Observe the following guidelines when wiring a
controller.
Input and Output terminal blocks
All of the fixed input terminal blocks are mounted on
the bottom of the controller and the output terminal
blocks are mounted on the top of the controller. See Table
3 for more information about I/O terminal functions,
requirements, and ratings.
FC bus terminal block
The FC Bus terminal block is a blue, removable, 4-terminal
plug that fits into a board-mounted jack.
Wire the removable FC bus terminal block plugs on
the controller, and other controllers in a daisy-chain
configuration using 3-wire twisted, shielded cable as
shown below. See Table 5 for more information.
Figure 4: FC bus terminal block wiring
Note:
The FC bus Shield (SHLD) terminal is isolated
and can be used to connect (daisy chain) the shields
for FC bus wiring.
SA bus terminal block
The SA Bus terminal block is a brown, removable, 4-
terminal plug that fits into a board-mounted jack.
Wire the removable SA Bus terminal block plugs on the
controller and other SA Bus devices in a daisy-chain
configuration using 4-wire twisted, shielded cable as
shown in the following figure. See Table 5 for more
information.
FEC26 Field Equipment Controllers Installation Guide
5