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Installation and Use Manual 31
Installation and Setup
ProLink II Setup Transmitter StartupUsing ProLink IIBefore You Begin
2.4 Troubleshooting the ProLink II connection
If you cannot connect to the transmitter, review the information in this section and follow the
suggestions. If you cannot resolve the problem, contact Micro Motion customer support.
2.4.1 OPC server or OPC client issues
If the Context message displays either of the following:
The OPC server could not be started.
The OPC client database could not be opened.
reinstall ProLink II, ensuring that you have the required privileges (see Section 2.2.1). On
Windows NT, you must be logged on as Administrator to perform the ProLink II installation.
2.4.2 Other issues
If the Context message displays either of the following:
The serial port could not be opened, or the device did not respond. Port availability and
connection wiring should be checked.
An unexpected error code was returned.
try the following:
1. Check all the wiring between the PC and the transmitter, and ensure that all components are
powered up. See the setup information for your connection type in Section 2.2.5, or refer to the
transmitter manual.
2. Check all the connection parameters – baud rate, parity, stop bits, protocol, address, and COM
port – and ensure they are correct for both ProLink II and the transmitter.
3. Click
Start > Programs > MMI > ProLink II v2.5 > ProLink II Registrar. This program
updates registry entries.
4. Ensure that ProLink II is configured for the correct COM port. To do this, install the LED
indicator/tester. (If you purchased the ProLink II installation kit from Micro Motion, this
device was included.) Attempt a connection.
• The indicators for the TD, RD, DTR, and RTS lines should be ON. Usually they are red,
but if another program has used the COM port the RTS indicator may be green. If no
indicators are ON, you are not connected to the COM port, ProLink II is configured for the
wrong COM port, or there is a wiring problem.
• When you try to connect, verify that the RTS LED changes color or flashes. If no LED
change is detected, you are connected to the wrong COM port or the COM port isn’t
assigned correctly. Check the device manager on your PC for the proper COM port
configuration.
5. Make sure that you don’t have interference over the COM port. Other programs or devices
may be trying to use the COM port. If the TD light is flashing while you are not using
ProLink II, the COM port is in use by another program. Terminate the other program and try
again.
6. If you use the configured COM port for any other program, verify that the other program is not
currently running. Personal digital assistants (PDAs) often have automatic update programs
that use the COM ports continually.
7. For HART connections to Model 1700/2700 transmitters with the intrinsically safe outputs
option board, ensure that the terminals are externally powered.