Figure B-10: Connection over multidrop network
A. RS-232 to Bell 202 converter
B. 250–600 Ω resistance
C. Devices on the network
D. Master device
5. Start ProLink III.
6. Choose Connect to Physical Device.
7. Set Protocol to HART Bell 202.
Tip
HART/Bell 202 connections use standard connection parameters. You do not need to configure them
here.
8. If you are using a USB signal converter, enable Toggle RTS.
9. Set Address/Tag to the HART polling address configured in the transmitter.
Tip
• If this is the first time you are connecting to the transmitter, use the default address: 0.
• If you are not in a HART multidrop environment, the HART polling address is typically left at the
default value.
• If you are unsure of the transmitter’s address, click Poll. The program will search the network and
return a list of the transmitters that it detects.
10. Set the PC Port value to the PC COM port that you are using for this connection.
11. Set Master as appropriate.
Option
Description
Secondary Use this setting if a primary HART host such as a DCS is on the network.
Primary Use this setting if no other primary host is on the network. The Field Communicator is a
secondary host.
Using ProLink III with the transmitter Configuration and Use Manual
March 2019 MMI-20025166
330 Micro Motion Model 5700 Transmitters with Configurable Outputs
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