Quick start with ProLink II
Tip
If you do not know the transmitter’s RS-485 communication settings, you can connect through the
service port, which always uses default settings, or use another communications tool to view or
change the settings.
8.
Set the
COM Port
value to the PC COM port that you are using for this connection.
9.
Click
Connect
.
If the connection is successful:
• The status bar in the main window is updated to show an active connection.
• The Process Variables window or Commissioning Wizard window is displayed.
If an error message appears:
• Switch the leads and try again.
• Ensure that you are using the correct COM port.
• Check the physical connection between the PC and the transmitter.
• For long-distance communication, or if noise from an external source interferes with the
signal, install 120-Ω ½-W terminating resistors in parallel with the output at both ends of the
communication segment.
3.3
Configuration tips and tricks
Review these tips before beginning configuration.
3.3.1
HART security
HART security may be enabled on the 9739 MVD transmitter. To configure the transmitter using HART
protocol, you must disable HART security.
3.3.2
Default values and ranges
Default values and ranges for the most commonly used parameters are provided in Appendix A.
3.3.3
Restore the factory configuration
Restoring the factory configuration returns the transmitter to a known operational configuration.
Procedure
1.
Make a connection from ProLink II to your transmitter.
2.
Choose
ProLink→Configuration→Device→Restore Factory Configuration
.
3.
In the Configuration window, click the Device tab.
40
Micro Motion 9739 MVD Transmitters