• The ability to connect to and view information for more than one device
• A guided connection wizard
These features are documented in the ProLink III manual. They are not documented in the
current manual.
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.
C.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.
C.2.1 Connection types supported by ProLink III
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 8-bit connections (Modbus RTU)
• Modbus/RS-485 7-bit connections (Modbus ASCII)
When selecting a connection type, consider the following:
• Service port connections are specialized Modbus/RS-485 connections that use
standard connection parameters and a standard address that are already defined in
ProLink III. Service port connections are typically used by field service personnel for
specific maintenance and diagnostic functions. Use a service port connection only
when another connection type does not provide the functionality you need.
• Some connection types require opening the wiring compartment or the power
supply compartment. These connection types should be used only for temporary
connections, and may require extra safety precautions.
• 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
194 Micro Motion
®
Gas Specific Gravity Meters (SGM)
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