Product AMS TREX


AMS Trex™ Device Communicator ? Commission and validate devices faster ? Automatically synchronize field changes with AMS Device Manager ? Quickly fix issues in the field with advanced device diagnostics ? Configure and test valves inline ? Improve efficiency with a modern, intuitive user interface ? Intrinsically safe; usable anywhere you need to go

Intrinsically Safe

The Trex communicator is built to go wherever you may need to be. Unlike consumer mobile devices that cannot be taken into hazardous areas without shutting down the process or pulling a hot work permit, the Trex unit meets global Intrinsic Safety requirements: ? ATEX ? CSA (US/Canada) ? IECEx ? FISCO Gain freedom and flexibility with a communicator that can go anywhere you need to, when you need to, without worrying if the device will put you at risk. Manage loop health easily with the Trex communicator.

Power the Loop

The Trex communicator includes built-in functionality to power a device. Simply connect the communicator to an instrument to power it. Technicians no longer waste time rounding up a power supply or confirming adequate loop resistance before testing, speeding configuration on the bench. Power the loop functionality allows device configuration in the field on new projects—even before power and I/O infrastructure are in place. Transmitter configuration no longer needs to be the last step of new projects. Configure transmitters before the host system, wiring, piping, and other project elements arrive, keeping transmitter configuration from being a critical path item, allowing more flexibility in new project scheduling and leading to faster startups. Powering devices from the communicator allows you to isolate the device from the rest of the system, helping you identify installation problems like power supply, wiring, I/O card, and configuration issues.

Auto Sync

The Auto Sync technology in AMS Trex helps maintain data integrity in your AMS Device Manager database without any technician intervention. Every change made in the field is automatically recorded and time-stamped. Changes are updated in real-time if Wi-Fi connection is enabled and a technician is in a hot spot. Or changes are cached on the Trex communicator and applied to the database when the communicator detects a Wi-Fi signal or USB cable connection. The Trex communicator logs and timestamps changes as they occur, delivering an accurate audit trail of device changes to the AMS Device Manager database.

Powerful Diagnostics

Identify Valve Problems Valve problems are particularly costly to diagnose and repair. Field technicians are often required to pull a valve to investigate a problem, and removing valves for inspection usually means shutting down the process. Further complicating troubleshooting, technicians often need to disassemble the valve to determine the root cause of the problem. This frequently leads to further damage to the valve, ending in a more time consuming and expensive repair. Using the ValveLink Mobile app on the Trex unit, you can perform valve diagnostics in the field, including valve signature, dynamic error band, PD one button sweep, and step response, without having to pull the valve or perform invasive troubleshooting steps. ValveLink Mobile works with HART and FOUNDATION Fieldbus Fisher® FIELDVUE™ digital valve controllers and provides an intuitive user interface that is easy to understand and use. With the AMS Trex Device Communicator Plus communication module, you can even power the digital valve controller directly from ValveLink Mobile. The large touchscreen on the Trex communicator makes it easier than ever to see all valve diagnostic details.

Diagnose Communication Problems

The Trex communicator can configure and troubleshoot FOUNDATION Fieldbus devices and segments in your plant. Use the communicator to create a quality segment by diagnosing the network DC voltage and average noise. Detect power supply problems using the communicator’s power the loop functionality or by monitoring low frequency noise on a segment. You can also verify whether the DC voltage is correct in HART loops.

Digitize Visual Inspections

AMS Inspection Rounds on AMS Trex digitizes information collected during inspection routes to drive operations and maintenance action. By delivering information to automation systems, personnel have accurate, real-time information that enables them to make better decisions. Graphical dashboards deliver insight into plant condition, helping prioritize action and highlighting critical safety issues.

Ordering Information

TREX Base Trex Platform

Code Communication Module

C Device Communicator communication module

L Device Communicator Plus communication module(2)

Code Applications

H HART Application

F HART + FOUNDATION Fieldbus Applications


Code Power Module Type

P Rechargeable Li-Ion Power Module


Code Product Certifications

KL ATEX, CSA (US/Canada) and IECEx Intrinsically Safe (includes FISCO as applicable)

NA No Approval

Code Radio Options

W Wireless

9 None


Code Support

S1 Standard Support (1 Year)

S3 Standard Support (3 Year)

P1 Premium Support (1 Year)

P3 Premium Support (3 Year)


Code Option Codes (multi-select)

S Carrying Case(8)

R Radar Master App(9)

W WirelessHART Provisioning App(9)



Typical HART Model Number: TREX L H P KL W S3 S

Typical HART/Fieldbus Model Number: TREX L F P KL W S3 S

Typical HART/Fieldbus with Radar Master and WirelessHART Provisioning Model Number: TREX L F P KL W S3 SRW