Three Ways to Increase Efficiency with Power the Loop Technology

Organizations are relying more than ever on devices that monitor equipment in the 
field. As a result of the increasing demand for data, the number of devices that a plant 
needs to manage is constantly increasing. While increased access to diagnostics is a 
blessing, the increased pressure of maintaining these devices is not always a welcome 
change for the technicians who are responsible for their installation, configuration, 
and maintenance.
For technicians to deliver top-tier reliability on critical equipment, they must be given 
top-tier tools. The right equipment will give technicians more flexibility in both the field 
and the workshop, helping them to save time and feel more confident about the repairs 
and configurations performed on a day-to-day basis.
Emerson’s AMS Trex Device Communicator helps technicians achieve faster 
configuration and troubleshooting on the bench or in the field. With Power the Loop 
technology, technicians can perform critical diagnosis and configuration tasks without 
the need for an external power supply or loop simulator - allowing more flexibility and 
efficiency in daily operations

A process plant can be a harsh environment; as a result, devices will occasionally need 
to be returned to the shop for evaluation, repair, or configuration. Unfortunately, 
connecting to a device in the shop to check configuration and functionality is a 
cumbersome process that eats up valuable man-hours. 
To evaluate a device in the shop, the technician first needs to round up a power supply 
that is appropriate for the device. This means spending time searching through supply 
cabinets in order to find the appropriate power source. In addition, the technician 
needs to verify that the device has adequate loop resistance before hooking up the 
communicator. All of these steps take time that is frustrating when the plant is operating 
normally. And if the removal of the device has caused an outage, this time spent 
rounding up the right parts can be costly.
To speed repair and configuration on the bench, technicians need tools that will 
minimize the external complications of device setup. The Trex communicator’s Power 
the Loop technology enables technicians to configure devices on the bench in a fraction 
of the time needed with other communicators.
Power the Loop functionality allows users to access a device simply by connecting to 
the terminals on the device. The Trex communicator functions without the need for an 
external power supply and provides loop resistance on both sets of connectors. When 
a user plugs an unpowered device into the Trex communicator, the communicator’s 
intuitive interface anticipates the action and notifies the user to connect the device 
to the powered terminals. When the lead set is plugged into the powered terminals, 
the technician can select the option to provide power, immediately making the device 
available for configuration or diagnosis.
The Cluttered Workshop
BEFORE
 Communicator
 DC Power Supply
 Multi-meter
 250 Ohm resistor
AFTER
 AMS Trex Device Communicator
DC Power Supply GONE
Multi-meter GONE
250 Ohm resistor GONE