Mitsubishi Electric 800 Series Instruction Manual page 383

 Monitoring the trace status
• The trace status can be monitored on the operation panel by setting "38" in Pr.52 Operation panel main monitor
selection, Pr.774 to Pr.776 (Operation panel monitor selection), or Pr.992 Operation panel setting dial push
monitor selection.
The content depends on the digits on the operation panel.
Monitor value
*1
0 or no display
1
2
*1 The value(s) "0" to the left of the leftmost non-zero value is(are) not shown in the monitor display. For example, if no trace data is in internal RAM,
sampling retry is not performed, no trigger is detected, and trace operation is performed, "1" appears. (not "0001")
• During trace operation, the Trace status (Y40) signal can be output.
To use the Y40 signal, set "40" (positive logic) or "140" (negative logic) in one of Pr.190 to Pr.196 (Output terminal
function selection) to assign function to an output terminal.
NOTE
• Changing the terminal assignment using Pr.190 to Pr.196 (Output terminal function selection) may affect the other
functions. Set parameters after confirming the function of each terminal.
Parameters referred to
Pr.52 Operation panel main monitor
Pr.178 to Pr.189 (Input terminal function
Pr.190 to Pr.196 (Output terminal function
382
14.(A) Application Parameters
14.12 Trace function
1000s place
Indicates internal RAM state.
100s place
Indicates sampling retry state.
Fourth digit
No trace data in internal RAM
Trace data in internal RAM
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selectionpage 236
selection)page 274
selection)page 258
1s place
Indicates trace operation.
10s place
Indicates trigger state.
Trace status
Third digit
Sampling retry not
Trigger not detected
performed
Sampling retry performed Trigger detected
Sampling retry count excess —
Second digit First digit
Tracing stopped
Trace operation
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