Quick start with ProLink II
10. Set
Master
as appropriate:
Option
Description
Secondary
Use this setting if another host such as a DCS
is on the network.
Primary
Use this setting if no other host is on the
network. The Field Communicator is not a
host.
11. 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:
• 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.
3.2.5
Make a Modbus/RS-485 connection
Prerequisites
You will need the following:
• An installed, licensed copy of ProLink II
• An available serial or USB port
• One of the following types of signal converters:
− RS-232 to RS-485 signal converter
− USB to RS-485 signal converter
• Adapters as required (e.g. 9-pin to 25-pin)
Procedure
1.
Attach the signal converter to your PC’s serial or USB port.
2.
At the transmitter, remove the housing cover to access the RS-485 terminal connections.
If the transmitter is in a hazardous area, do not remove the housing cover while
power is being supplied to the unit. Removing the housing cover while power is
supplied to the unit could cause an explosion. To access transmitter information in a
hazardous environment, use a communication method that does not require removing
the transmitter housing cover.
3.
To connect directly to the transmitter, connect the leads on your signal converter to terminals 26
(RS-485/A) and 27 (RS-485/B) on your transmitter. See Figure 3-8 .
Configuration and Use Manual
37
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Страница 230: ...Using the transmitter display Figure C 4 Offline menu version information 224 Micro Motion 9739 MVD Transmitters ...
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Страница 236: ...Using the transmitter display Figure C 10 Offline menu Zero 230 Micro Motion 9739 MVD Transmitters ...
Страница 239: ...Using ProLink II with the 9739 MVD transmitter Figure D 2 Configuration menu Configuration and Use Manual 233 ...
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Страница 245: ...Using the Field Communicator with the 9739 MVD transmitter Figure E 2 Overview menu Configuration and Use Manual 239 ...