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Using Data Log Recorder on Caterpillar ET Software

Data Log Recorder

Figure 1.1 - Data Log Viewer

#Instructions:
To use Data Log Recorder:
(1). Open CAT ET and connect to the ECM. Read More: How to Connecting Caterpillar ET Software to the ECM.

(2). Select Data Log - Recorder from Information menu.
Figure 1.2 - Data Log Recorder (Information)
(3). Click the Settings... button. The Data Log Recorder Settings dialog box is displayed. Note: This dialog box is also displayed the first time the tool is accessed.
Figure 1.3 - Data Log Recorder Settings
(4). On the General tab, enter the settings to run the Data Log Recorder. If desired, enter the conditions on the Auto-Trigger tab. The General tab includes the following areas:
a). Log File Location
  • By default, the data log is saved with the extension *.sdf and is stored in the \DataLog folder of the program folder where the service tool is installed. The file name contains the date the log was taken.
  • To save the Data Log File in another location, enter the new location and/or file name in the Log File text box OR click the Browse... button to display the Save As dialog box.
b). Sample Rate – The Sample Rate may be selected in one of the following ways:
  • Select the rate at which the sample is to be taken from the Sample Rate drop-down list, and select the Per Hour or Per Minute radio button, or
  • Select the Custom radio button, and then click Configure... The Sample Time dialog will be displayed. In this dialog, enter the specific desired second, minute, or hour intervals at which the sample should be recorded. Then click OK. Note: The intervals may be irregular (for example, the sample may be taken at 3 hours and then again 10 minutes later) and can be entered for up to 2 weeks from when the Data Log Recorder is started.
c). Duration
  • Enter the amount of time that the sample is to be collected in the Duration text box, and select either the Minute or Hour radio button.
d). Pre-Trigger
  • When enabled, the Pre-Trigger function records data before logging starts, allowing data values to be viewed just prior to the starting point of the test.
  • Enter the amount of time allowed to elapse before the trigger point in the Pre-Trigger text box by clicking the up and down arrows next to the text box, entering information with the keyboard, or using the up and own keys on the keyboard. The default value for Pre-Trigger is five seconds.
e). ECM Parameter
  • Highlight an ECM from the ECM Parameter area. the Add... button. The Select Group dialog box is displayed.
  • Highlight a group from the Select Group dialog box and click OK. The Data Log Recorder Settings dialog box is displayed.
Figure 1.4 - Select Group
(5). Click OK to accept the settings and/or conditions. The Please Wait message is displayed. If a Pre-Trigger is set, Buffering... displays on the Status line. The Data Log Recorder screen is then displayed with the settings listed in the Settings Area.
Figure 1.5 - Data Log Recorder (Setting Area)
(6). Click the Start button. 
  • If the sample rate is set at less than 30 samples per minute, the data log process begins and the status of the remaining logging time displays on the status line. Note: The Start button is replaced with the Stop button until Stop is clicked or the test has completed.
Figure 1.6 - Data Log Recorder (is running)
  • If the sample rate is set at greater than 30 samples per minute, the Data Log Recorder is running... dialog box is displayed, and the status of the remaining logging time displays on the Status line.
  • The test may be stopped by clicking Stop Recorder. A warning dialog will be displayed: The Data Log Recorder is running. Are you sure you want to stop recording? Click Yes to stop the test and return to the Data Log Recorder screen.
  • When the test has completed, the status line reads, Please Click 'Start' to Start Logging. If the sample rate is less than 20 samples per minute, other service tool functions may be used while logging.
Figure 1.7 - Stop Recording
(7). To view the data:
  • Click Graph in the Data Log Recorder screen. The Select Parameters dialog box of the Data Log Viewer function is displayed, or
  • Select Data Log from the Information menu, and then select Data Log Viewer from the submenu. The Select Parameters dialog box of the Data Log Viewer function is displayed, or
Figure 1.8 - Data Log Viewer
  • Select Open from the File menu, and then select Data Log File from the submenu. The Select Parameters dialog box of the Data Log Viewer function is displayed. Note: A data link connection is not required to access files from the File menu.
Figure 1.9 - Data Log File (Open)
Figure 2.1 - Select Parameters
  • Click OK.
Figure 2.2 - Data Log Viewer

#Screen Layout
The Data Log Viewer screen has the following areas:
a). Legend Area
The Data Log Viewer legend area, above the graph, displays the ECM name and its selected parameters. These parameters display with the corresponding line color and, if the Show Data points option is enabled, the corresponding symbol. The status parameter and its unit of value display on the Y-axis on each side of the graph. A maximum of six parameters may be selected. These parameters are displayed in the selected line color.

b). Graph Area
The Data Log Viewer area displays the time on the X-axis and the minimum and maximum values for each parameter on the Y-axis. Note: State parameters display with dashed lines until the graph begins to trace the state parameter’s value. A state parameter has a status of either On or Off.

To view the graph more easily, "click and drag" the mouse over an area. The selected area fills the graph. To scroll through the data displayed on the graph, use the right or left arrow keys on the keyboard. To return the graph to its default setting, click the right mouse button in the graph area. If the Compare Data Points option is checked in the Data Log Viewer Settings dialog box, the X and Y value(s) of the points selected in the graph will be displayed in the lower-left area. If two points are selected, the difference between the two points is also displayed. The selected "Point 1" and "Point 2" are displayed next to the selected point(s) in the Graph area. Note: When selecting a point on the graph, the cursor changes from an arrow shape to a hand shape when positioned correctly to specify a point.

c). Button
The following buttons are available in the Data Log Viewer screen:
-Parameters
-Settings
-Export
Figure 2.3 - Data Log Viewer Settings


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