Emerson AMS Trex Device Communicator User Manual page 6

AMS Trex Device Communicator User Guide
September 2021
6
1.800.561.8187
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
• 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?
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