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Connection over local loopFigure B-3:
A
C
D
E
R1
R3
R2
B
A. PC
B. Signal converter
C. Any combination of resistors R1, R2, and R3 as necessary to meet HART communication resistance requirements
D. DCS or PLC
E. Transmitter
Note
This figure shows a serial port connection. USB connections are also supported.
4. To connect over a HART multidrop network:
a. Attach the leads from the signal converter to any point on the network.
b. Add resistance as necessary.
Important
HART/Bell 202 connections require a voltage drop of 1 VDC. To achieve this, add
resistance of 250–600 Ω to the connection.
Using ProLink III with the transmitter
204 Micro Motion
®
Model 1500 Transmitters with Analog Outputs