Emerson AMS Trex, User Manual

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5.13.2 Enable or disable logging
Use the logging option to save measurements to a comma-separated values (.csv) log file.
You can save one set of measurements or append additional sets of measurements that
you collect at a later date. Appending the measurements lets you create a trend/report of
the fieldbus segment.
The log file will continue to save measurements until:
• You disable the logging option.
• The application has saved the selected number of measurements.
• The application has saved 100,000 entries in a log file. This is the maximum number.
• The file size is larger than 176 MB.
Note
As a best practice, create a new log file for each fieldbus segment and connection point you are
monitoring. Otherwise, ensure you update the segment name and measurement location fields each
time you collect data.
Procedure
1. Connect to the FOUNDATION fieldbus device or segment.
2. On the Fieldbus Diagnostics Overview screen, tap Logging .
3. Modify the following options, as needed.
Option Description
User Name The name of the person completing the
measurements.
Segment Name
The name of the fieldbus segment. If you tap the
Go
Online
option, the Fieldbus Diagnostics application
creates a unique name. You can enter a new name.
File Name The name of the .csv file that saves the measurements.
You can enter a file name or you can have the
application create one based on the device tag or
device ID if you tapped
Go Online before enabling
logging. If multiple devices are on the fieldbus
segment, the device with the lowest address is chosen
for the file name.
Measurement Location The location on the fieldbus segment where the Trex
unit is connected to take the measurement. The
options are
At Device , At Fieldbus Control Module , and At
Hub .
Fieldbus Diagnostics application
User Guide 171