Mitsubishi Q2ACPU User Manual page 449

APPENDICES
Number Name
Presence/absence of
SM320
SFC program
Start/stop SFC
SM321
program
SFC program start
SM322
status
Presence/absence of
SM323 continuous transition
for entire block
Continuous transition
SM324
prevention flag
Output mode at block
SM325
stop
SFC device clear
SM326
mode
Output during end step
SM327
execution
Operation mode for
SM330 low speed execution
type program
Table App. 2.3. Special relay
Meaning
OFF : SFC program absent • Turns ON when an SFC program is registered.
ON : SFC program present • OFF when an SFC program is not registered.
• Initial value is set at the same value as SM320.
OFF : SFC program not (Goes ON automatically if SFC program is present.)
executed (stop) • Turn this relay from ON to OFF to stop program
ON : SFC program execution.
executed (start) • Turn this relay from OFF to ON to resume program
execution.
• The SFC program starting mode in the SFC setting
of the PLC parameter dialog box is set as the initial
OFF : Initial start
value.
ON : Resume start
AT initial start: OFF
At continued start: ON
OFF : Continuous transition
Set the presence/absence of continuous transition for
not effective
the block where "Continuous transition bit" of the SFC
ON : Continuous transition
data device has not been set.
effective
• OFF during operation in the continuous transition
OFF : When transition is mode or during continuous transition, and ON when
executed continuous transition is not executed.
ON : When no transition • Always ON during operation in the no continuous
transition mode.
Select whether the coil outputs of the active steps are
held or not at the time of a block stop.
• As the initial value, the output mode at a block stop in
OFF : OFF
the parameter is OFF when the coil outputs are OFF,
ON : Preserves
and ON when the coil outputs are held.
• All coil outputs go OFF when this relay is OFF.
• Coil outputs are preserved when this relay is ON.
Selects the device status when the stopped CPU is run
OFF : Clear device
after the sequence program or SFC program has been
ON : Preserves device
modified when the SFC program exists.
OFF : Hold step output • Select the device status at the time of switching from
turned OFF (cleared) STOP to program write to RUN.(All devices except
ON : Hold step output held the step relay)
Select whether the low speed execution type program
will be executed in the asynchronous mode or in the
synchronous mode.
• Asynchronous mode (this relay is turned OFF.)
Mode in which the operation of the low speed
OFF : Asynchronous mode execution type program is performed continuously
ON : Synchronous mode within the excess time.
• Synchronous mode (this relay is turned ON.)
Mode in which the operation of the low speed
execution type program is not performed
continuously and operation is performed from the
next scan if there is excess time.
Explanation
App - 52
Corres-
ponding
Set by Corresponding
(When Set) ACPU
M9
S (Initial) M9100
M9101form
S (Initial)/U
at change
M9102form
S (Initial)/U
at change
U M9103
S (Instruction
M9104
execution)
S (Status change) New
S (Initial)/U M9196
U New
S (Initial)/U New
U New
CPU
QnA
QnA
QnA
QnA
QnA
QnA
QnA
QnA
QnA
QnA