Configure each Load Resistor as required for instrument installation as indicated in Figure A-8
(refer to Figure 3-32 through Figure 3-34 for wiring examples).
• OUT = Externally installed load resistor of 250Ω to 600Ω
• 250Ω = On-board load resistor is installed in the current loop.
• 500Ω = On-board load resistor is installed in the current loop.
Figure A-8: HART Address and Load Resistor Jumpers
A.8 Digital I/O Terminal Board Setup
Each DT module requires a specific unique address of 1 through 3. Position the Address
Selection Switches as indicated in the Address Selection table shown in Figure A-9.
• Set the COMM LINK TERMINATION Switch to the IN position:
− If the DT module is the only Digital Terminal module connected to the flow computer
− If the DT module is positioned at the end of the Comm Link bus. Refer to Digital
Terminal Board #3 in Figure 3-20.
• Otherwise, set the switch to the OUT position.
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