Micro Motion RFT9709 Manual de instrucciones Pagina 35

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Using ProLink
®
Software with Micro Motion
®
Transmitters
21
Getting Started
continued
Connecting to the transmitter
File Menu: Print File Menu: Log Files View Menu: VariablesBefore You Begin Getting Started File Menu: Database
Windows
®
hour glass
When the Windows hour-glass symbol does not disappear, the ProLink
program has experienced a fatal error. Reboot the computer, then refer
to
Table 2-3
for typical causes and appropriate corrective actions.
Transmit light on PC Interface adaptor
flashes while trying to connect to
transmitter using the RS-485 physical
layer
Conflict between physical layer settings Ensure that transmitter and ProLink
setup, and position of selector switch on
PC Interface adaptor, are all set to
RS-485
Improper wiring between PC Interface
adaptor and transmitter
Ensure proper RS-485 wiring (see
“Wiring to the transmitter” on page 7)
Verify terminal blocks are firmly seated
at transmitter and PC Interface adaptor
Incorrect communication parameters Verify that settings for protocol (HART or
Modbus
®
), baud rate, parity, and stop
bits are the same for the transmitter and
ProLink program
Incorrect polling address Open the File menu, then choose
Connect. Click the Poll Network button in
the Connect dialog box, then choose Poll
for a list of available transmitters
Baud rate too high for computer Change ProLink baud rate to 1200 baud,
then reset to higher rate is desired: Open
the File menu, then choose Comm
Options
RFT9739 not properly configured for
RS-485
Change RFT9739 settings (see the
instruction manual that was shipped with
the transmitter)
RFT9712 or RFT9729 not properly
configured for RS-485
See the RFT9712 or RFT9729
instruction manual to verify:
The communications jumper located
on the processor board in the
RFT9712 or RFT9729 is set to 485
The RFT9712 or RFT9729 is using
1200 baud for HART communication,
and has transmitter software version
5.0 or higher
Noise interference Ensure proper RS-485 wiring (see
“Wiring to the transmitter” on page 7)
Table 2-2. Troubleshooting the "cannot find" message
Status Cause Corrective Action
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