Ams trex™ Device Communicator

Figure 5-9: Example of noise spectrum
3. If necessary, tap 
Reset Peak
to clear the peak on the spectrum.
5.12
Settings
Within the Fieldbus Diagnostics application, you can change the following settings:
•
View or hide the minimum, maximum, and average values for each measurement.
•
View or hide the host and device tags.
•
Set the number of measurements to average.
•
Set the minimum and maximum acceptable values for each type of measurement. This
defines the range of values for the measurements labeled GOOD, BAD, and CHECK on
the Fieldbus Diagnostics Overview screen.
•
Reset all settings in the application to the default values.
User Guide 
Fieldbus Diagnostics application
September 2021
User Guide 
167

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5.12.1
View or hide the minimum, maximum, and average
values for a measurement
The minimum, maximum, and average values are displayed on the 
Details
screen. By
default, these values are displayed.
Procedure
1. On the Fieldbus Diagnostics Overview screen, tap 
Settings
.
2. Tap the 
Show Min Max Avg
box to show or hide these values.
5.12.2
View or hide the device tags when online
When you tap Go Online on the Fieldbus Diagnostics Overview screen, the Trex unit is able
to display the tag for the connected device and/or host system. However, you can hide
these tags if you do not want the Trex unit to query a device for its identification.
Procedure
1. On the 
Fieldbus Diagnostics Overview
screen, tap 
Settings
.
2. Tap 
Device Tags (when online)
.
3. Select one of the following options.
Option
Description
Fieldbus Host and Devices
Display the tags for the host on the fieldbus
segment and the devices.
Fieldbus Devices Only
Display only the tags from the devices.
No Tags
Display no tags.
4. Tap 
OK
.
5.12.3
Set the number of measurements to average
You can set the number of measurements to average for the DC voltage, noise, and signal
level measurements. The option below applies to all three measurements; you cannot set
a different number of averages for each measurement.
By default, the Fieldbus Diagnostics application averages the ten most recent
measurements. The average value is displayed on the 
Details
screen.