Ams trex™ Device Communicator

1.2
Documentation conventions
The following conventions are used throughout:
Note
A note paragraph contains special comments or instructions.
 CAUTION
A caution paragraph alerts you to actions that can have a major impact on the equipment
or stored data.
 WARNING
A warning paragraph alerts you to actions that can have extremely serious consequences
for equipment and/or personnel.
1.3
Technical support
Contact your local representative or go to the AMS Trex Device Communicator website for
technical support contact information.
1.3.1
Information to provide to technical support
Before you call technical support personnel, have a detailed description of the issue,
including the information below (if applicable). Ensure you have the user manual for the
devices or digital control system available.
User Guide 
AMS Trex Device Communicator User Guide
September 2021
User Guide 
5

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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

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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.