Mitsubishi MELSEC L Series User Manual page 254

Number Name
SM310 RS-232 adapter
Communication
reserved time
SM315
delay enable/
disable flag
Automatic CC-
SM319
Link start
Presence/
SM320 absence of SFC
program
Start/stop SFC
SM321
program
SFC program
SM322
start status
Presence/
absence of
SM323 continuous
transition for
entire block
Continuous
SM324 transition
prevention flag
252
Meaning
This relay stores information on whether an RS-
232 adapter is connected or not. Connection of
an RS-232 adapter is checked at the time of
OFF : Not connected
initialization, and if it is connected, this relay turns
ON :Connected
on. The on/off status set during initialization is
held until the power is turned off and on again or
the system is reset.
• This flag is enabled when the time reserved for
communication processing is set in SD315.
• Turns ON to delay the END processing by the
time set in SD315 in order to perform
communication processing.
OFF : Without delay
(The scan time increases by the period set in
ON : With delay
SD315.)
• Turns OFF to perform the END processing
without a delay of the time set in SD315 when
there is no communication processing.
(Defaults to OFF)
• This relay indicates whether the CC-Link
module is started and all the data are refreshed
by the automatic CC-Link start function.
• This relay is on when all the data are refreshed
by the automatic CC-Link start function.
OFF : Not activated
• Then the automatic CC-Link start function is not
ON : Activated
activated, or when the refresh device range is
insufficient, this relay is turned off. (If the
refresh device range set for the automatic CC-
Link start function is insufficient, all of the
refresh is stopped.)
OFF : SFC program
• This relay is on if an SFC program is registered.
absent
• This relay turns off if no SFC program is
ON : SFC program
registered.
present
• The same value as in SM320 is set as the initial
value.
OFF : SFC program not (This relay turns on when an SFC program is
executed (stop) registered.)
ON : SFC program • Turning off this relay stops SFC program
executed (start) execution.
• Turning on this relay restarts SFC program
execution.
In the SFC setting of the PLC Parameter dialog
box, Initial start is set for the SFC program start
OFF : Initial start
mode.
ON : Resume start
• At initial start: OFF
• At continued start: ON
OFF : Continuous
Set the presence/absence of continuous
transition not
transition for the block where "Continuous
effective
transition bit" of the SFC data device has not
ON : Continuous
been set.
transition effective
• This relay is off while the module is in the
continuous transition mode or during
OFF : When transition is
continuous transition, and is on when
executed
continuous transition is not executed.
ON : When no
• This relay is always on while the CPU module
transition
is operating not in the continuous transition
mode.
Explanation
Corre-
Set by sponding
(When Set) ACPU
M9
S (Initial)
U
New
S (Initial
processing and
status change)
S (Initial) M9100
M9101
format
change
S (Initial)/U
M9102
format
change
U M9103
S (Instruction
M9104
execution)
S (Status
New
change)
Corre-
sponding
CPU
LCPU
Q00J/Q00/
Q01
LCPU
Q00J/Q00/
*1
Q01
Qn(H)
QnPH
QnPRH
QnU
LCPU
Q00J/Q00/
*1
Q01
Qn(H)
QnPH
QnPRH
QnU