Mitsubishi 00JCPU User Manual page 252

(6) Precautions
(a) Measurement range setting
Set the measurement range so that "Start step < End step" is satisfied.
(b) Minimum unit of measurement time
The minimum unit of measurement time is 0.100ms.
If the measurement time is less than 0.100ms, 0.000ms is displayed.
(c) When between the FOR and NEXT instructions is specified
The execution time of one scan between the specified steps is displayed.
(d) When scan time cannot be measured
Scan time cannot be updated on the Scan time measurement screen in the following cases.
• When the branch instruction is specified the to end step
Example
• When only the start step is executed
Example
6 - 72
The JMP instruction is specified to the end step.
0
Start step: 3
3
5
7
P0
10
The specified end step is not executed by the JMP instruction.
0
3
The specified end step
5
is not executed due to
the JMP instruction.
7
10
P0
12
13
End step: 6
JMP P0
Start step: 3
JMP P0
End step: 9
END