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ProLink III messages
As you use ProLink III with a Micro Motion transmitter, you will see a number of messages
and notes. This manual does not document all of these messages and notes.
Important
The user is responsible for responding to messages and notes and complying with all safety
messages.
B.2 Connect with ProLink III
A connection from ProLink III to your transmitter allows you to read process data,
configure the transmitter, and perform maintenance and troubleshooting tasks.
B.2.1 ProLink III connection types
Different connection types are available for connecting from ProLink III to the transmitter.
Choose the connection type appropriate to your network and the tasks you intend to
perform.
The transmitter supports the following ProLink III connection types:
• Service port connections
• HART/Bell 202 connections
• Modbus/RS-485 7-bit connections (Modbus ASCII)
• Modbus/RS-485 8-bit connections (Modbus RTU)
When selecting a connection type, consider the following:
• Service port connections use standard connection parameters that are already
defined in ProLink III, and therefore you do not have to configure them.
• HART/Bell 202 connections use standard HART connection parameters that are
already defined in ProLink III. The only parameter you must configure is the
transmitter address.
• Service port connections can be made only when the transmitter’s RS-485 terminals
are in service port mode. If they are not, you must switch them to service port mode
by power-cycling the transmitter and connecting within the first 10 seconds.
• RS-485 connections can be made only when the transmitter's RS-485 terminals are
in RS-485 mode. If they are not, you must switch them to RS-485 mode by power-
cycling the transmitter and waiting 15 seconds before connecting.
• Modbus connections, including service port connections, are typically faster than
HART connections.
• When you are using a HART connection, ProLink III will not allow you to open more
than one window at a time. This is done to manage network traffic and optimize
speed.
Using ProLink III with the transmitter
200 Micro Motion
®
Model 1500 Transmitters with Analog Outputs