MicroStrain, Inc.
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Appendix 2: Datalogging with Agile-Link™ software
Datalogging
•
Datalogging allows you to sample each sensor (each channel) on a node from 32
samples per channel per second to 2048 samples per channel per second. Sensor
data is written to memory on the node as it is sampled; no transmission occurs to
the base station. After the datalogging session has completed, data is downloaded
and saved to file by Agile-Link™ software. Analysis is conducted thereafter on
the resulting data files. Please review the
Sampling Rates
section of this manual
for sampling rate details.
Operating one node in datalogging mode
•
A datalogging session should be started by setting your configuration.
•
Establish communication with the node and right-click to get the drop-down
menu.
•
Click Configure. The Configuration window will appear.
•
Click the Channels tab. Check boxes to enable SG-Link® OEM’s channels 1, 3
and 4. Uncheck the channel 2 box to disable the temperature channel. Leave the
Offset scroll boxes for channel 1 at the default value of 512 (mid-scale). Leave
the Hardware Gain text box at the default value of 104. Click Apply.
•
Click the Datalogging tab. Uncheck box for Continuous Datalogging. Uncheck
box for Enable Sensor Event Driven Trigger. Enter the value 1000 into the
Sweeps scroll box. Enter the value 256Hz in the Sample Rate drop-down. Note
that a datalogging session of approximately 3.9 seconds has been set. Click
Apply. Click OK.
•
Click View in the menu bar. Click Channel Actions. The Channel Actions
windows will appear.
•
Click the Resync button. Channel 1 will now have the Strain action in place
indicating that the SG-Link® OEM will output engineering units in microstrain.
•
Click the small red X in the upper right corner of the Channel Actions window to
close the window.
•
Right-click on the node icon/label and a pop-up menu will appear.
•
Click Datalogging. Click Erase. A confirming message box will appear. Click
Yes. A progress bar will appear and disappear. This indicates that the
datalogging memory of the node was successfully erased.
•
Right-click on the node icon/label and a pop-up menu will appear.
•
Click Datalogging. Click Trigger Session. A progress bar will appear and
disappear. This indicates that a datalogging session was successfully triggered.
•
Right-click on the node icon/label and a pop-up menu will appear.
•
Click Datalogging. Click Download. A progress bar will appear and disappear.
This indicates that all datalogging sessions were successfully downloaded.
•
Note: Any number of datalogging sessions can be run consecutively before
downloading. Please review the
Datalogging Memory
section of this manual for
capacity details.
