Ams trex™ Device Communicator

Chapter 2
AMS Trex Device Communicator overview..................................................................... 7
Chapter 3
Field Communicator application...................................................................................53
Chapter 4
Loop Diagnostics application......................................................................................125
Chapter 5
Fieldbus Diagnostics application................................................................................ 151
Appendix A
Troubleshooting........................................................................................................ 179
Appendix B
Technical specifications..............................................................................................183
Appendix C
Product certifications.................................................................................................189
Appendix D
Wireless/Spectrum approvals.................................................................................... 191
Glossary
.................................................................................................................................. 193
Index
.................................................................................................................................. 197
User Guide 
Contents
September 2021
User Guide 
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Contents
User Guide
September 2021
iv
User Guide

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1
AMS Trex Device Communicator User
Guide
1.1
User Guide overview
The 
AMS Trex Device Communicator User Guide
is written for instrument technicians who
work with field devices, including HART
®
and FOUNDATION
™
fieldbus devices. The user
guide describes the hardware, connections to devices, the supported applications, and the
diagnostics you can run on devices, 4-20 mA current loops, or FOUNDATION fieldbus
segments.
Note
The Trex unit has two communication module options. This user guide describes both
modules. Any differences in the procedures based on these modules are noted.