Output Mode At Operating Status Change (Stop To Run) - Mitsubishi Electric melsec q00ujcpu User Manual

6.4

Output Mode at Operating Status Change (STOP to RUN)

(1) Definition
When the operating status is changed from RUN to STOP, the CPU module internally stores the
outputs (Y) in the RUN status and then turns off all the outputs (Y).
The status of the outputs (Y) when the operating status of the CPU module is changed back from
STOP to RUN can be selected from the following two options in the parameter setting in GX
Developer.
• Output the output (Y) status prior to STOP. ("Previous state")
• Clear the output (Y) status. ("Recalculate (output is 1 scan later)")
(2) Application
This function is used to determine the status of outputs (whether to resume the outputs from the
previous status or not) when the operating status is changed from STOP to RUN in the holding circuit
Start
button
• When outputting the output (Y) status prior to STOP
• When clearing the output (Y) status
Figure 6.8 Timing chart when the parameter is set to "Recalculate (output is 1 scan later)"
6 - 10
Stop
button
Figure 6.6 Holding circuit
ON
X20 OFF
X21 OFF
ON
Y0 OFF
Figure 6.7 Timing chart when the parameter is set to "Previous state"
ON
X20 OFF
X21 OFF
ON
Y0 OFF
RUN STOP STOP RUN
RUN STOP STOP RUN
.