Yaskawa MP900 Series Machine Controller for Standard Operation - Manual (Page 282)

4.5 Data Trace Definitions
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Saving a trace definition with no data is the same as deleting it. If the save operation fails, an error
message will be displayed. Referring to Appendix <$chapnumError Messages, remove the cause of the
error, and then save the data again.
Deleting
1. Select File (F) and then Delete (D) from the Data Trace Menu.
2. Click the Yes Button in the Data Trace message box.
„ Starting the Data Trace
The Machine Controller starts the data trace operation immediately when trace definition
data is saved to the Machine Controller. If trace definitions are changed and saved again, the
data traced up to that point will be lost and the data trace operation will start again from the
beginning.
The current trace execution status is displayed in the Status Box.
If the Machine Controller does not perform a data trace, it may be due to the following conditions:
1 The Machine Controller is currently in offline stop mode.
2 The CP-717 is in offline mode.
3 The TRACE system function in the main program is not being executed when "Program" is set for the
Trace Timing Box under the Data Trace Definition Tab Page.
4 The RESET input for the TRACE system function in the main program is ON when "Program" is set
for the Trace Timing Box under the Data Trace Definition Tab Page.
5 The actual number of trace times has reached the Trace Number of Times set in the Trace No. of Times
Box under the Data Trace Definition Tab Page.
6 The condition set in the Terminate Trigger Condition Box under the Data Trace Definition Tab Page
has been met.
7 The data trace has been manually stopped.
„ Saving and Deleting Trace Data
The data resulting from a data trace can be saved to a floppy disk. The data that is saved
depends on the tab page that is active.
If the Data Trace Definition Tab Page is active, only the trace definitions will be saved. If the
List or Graph Tab Page is active, the trace definitions and the trace data will both be saved.
Write File Window Configuration
Select File (F), Trace Data (T), and then Write (W). The Write File Window will be dis-
played.
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