Connect With Prolink Iii To The Service Port - Emerson Micro Motion 1700 Configuration And Use Manual

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B.2.2

Connect with ProLink III to the service port

CAUTION!
If the transmitter is in a hazardous area, do not use a service port connection. Service port
connections require opening the wiring compartment, and opening the wiring compartment
while the transmitter is powered up could cause an explosion. To connect to the transmitter in
a hazardous environment, use a connection method that does not require removing the
transmitter housing cover.
Prerequisites
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Procedure
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Configuration and Use Manual
You cannot make concurrent Modbus connections if the connections use the same
terminals. You can make concurrent Modbus connections if the connections use
different terminals.
ProLink III is installed and licensed on your PC
One of the following:
- RS-232 to RS-485 signal converter
- USB to RS-485 signal converter
An available serial port or USB port
Adapters as required (for example, 9-pin to 25-pin)
Attach the signal converter to the serial port or USB port on your PC.
Access the service port terminals:
a. Remove the transmitter end-cap to access the wiring compartment.
b. Loosen the screw on the Warning flap and open the power supply compartment.
Connect the leads from the signal converter to the service port, terminals 7
(RS-485/A) and 8 (RS-485/B).
Tip
Usually, but not always, the red lead is RS-485/A and the black lead is RS-485/B.
Using ProLink III with the transmitter
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