Ams trex™ Device Communicator

Figure 3-7: Menu screen for no connected HART device
3.9
Icons on the device menus
When the Trex unit is connected to a device, the device menus may have one or more
icons.
User Guide 
Field Communicator application
September 2021
User Guide 
67

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Figure 3-8: Device menu with icons
Icon
Description
The option is a parameter you can edit, such as the device tag.
The option is a device method, such as a loop test.
The option has a submenu with additional options.
The option is a graph or chart. Charts display a graphic view of variables as they
occur over time.
The option is a gauge chart. A gauge chart formats device data into a view
similar to an analog car speedometer and plots device data varying with time.
The option is a grid.
Field Communicator application
User Guide
September 2021
68
User Guide

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Icon
Description
The option is an image.
No icon
The option is a process variable. The process variable value may or may not be
displayed, depending on the device description for the device.
3.10
Connections to HART devices
The Trex unit can communicate with a device from the control room, on the bench, or any
wiring termination point in the loop. Review the HART wiring diagrams to ensure the Trex
unit is correctly connected to the device.
Note
The Trex unit acts as a secondary HART master on a HART loop.
Related information
Internal resistors
3.10.1
HART communication terminals
The Trex unit has communication terminals that enable it to communicate with a HART
device. Insert the lead set into the red and black terminals and connect to a HART device.