Information about the Trex unit
•
Operating system version on the Trex unit. (Tap
Settings
→
About
.)
•
The serial number of the Trex unit. You can view the serial number from the
Settings
.
(Tap
Settings
→
About
→
CPU
Board Serial Number
.) The serial number is located on
the label on the bottom of the Trex unit, near the power module LEDs.
•
Version number for the application. (Tap
Settings
→
Installed Applications
.)
Troubleshooting device communication issues
•
Does the control system support HART
®
or FOUNDATION
™
fieldbus communications?
•
What is the manufacturer and model of the control system?
•
What is the device manufacturer name (or ID) and model revision of the device (exact
spelling if possible)?
•
What task is being performed when the communication problem occurs?
•
Can AMS Device Manager or another Trex unit communicate with the device?
•
Are you having communication problems with multiple devices?
•
Are there any error messages displayed when attempting to communicate with a
device?
•
Does communication work when certain devices or processes are not running?
•
What is the total cable length run from the termination panel to the device?
When you
are working with HART devices, answer the following questions:
•
What is the loop impedance (resistance value) in the HART loop?
•
If a HART multiplexer is being used, what is the manufacturer and model?
•
Is the device in burst mode?
•
Is the device address set to "0"?
•
Is more than one device on the loop?
•
Is another master (primary or secondary) on the loop? (For example, a control system
or multiplexer.)
•
Is the device powered by the Trex unit or an external power supply?
AMS Trex Device Communicator User Guide
User Guide
September 2021
6
User Guide
2
AMS
Trex Device Communicator
overview
The Trex unit supports HART
®
and FOUNDATION
™
fieldbus devices, so you can configure
or troubleshoot in the field or on the work bench. Electronic
Device Description Language
(EDDL) technology enables the Trex unit to communicate with a variety of devices
independent of device manufacturer.
Depending on the attached communication module, the Trex unit lets you:
•
Configure HART and FOUNDATION fieldbus devices.
•
Power one HART or FOUNDATION fieldbus device.
•
Measure current and voltage.
•
Perform diagnostics on a 4-20 mA current loop or FOUNDATION fieldbus segment.
The Trex unit includes a color LCD touchscreen, a Lithium-Ion power module (battery
pack),
a processor, memory components, and optional communication modules.
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