462
SM280 CC-Link error
OFF: Normal
ON: Error
This relay turns on if a CC-Link error is
detected in any of the CC-Link modules
mounted, and turns off when the
condition returns to normal.
S (Status
change)
New
Qn(H)
QnPH
QnPRH
SM310
Mounting status of
RS-232, RS-
442/485 adapter
OFF: No adapter
mounted
ON: RS-232 or RS-
422/485 adapter
mounted
This relay stores whether the RS-232 or
RS-422/485 adapter is mounted or not.
The mounting status of the RS-232 or
RS-422/485 adapter is checked during
the initial processing, and if it is mounted,
this relay turns on.
The on/off status set during the initial
processing is held until the CPU module
is powered off and on again or is reset.
S (Initial) New LCPU
SM315
Communication
reserved time
delay
enable/disable flag
OFF: Without delay
ON: With delay
• 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.
(The scan time increases by the period
set in 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)
U New Q00J/Q00/Q01
SM319
Automatic CC-Link
start
OFF: Not activated
ON: Activated
• 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.
• Then the automatic CC-Link start
function is not 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.)
S (Initial
processing
and status
change)
New LCPU
SM320
Presence/absence
of SFC program
OFF: SFC program
absent
ON: SFC program
present
• This relay is on if an SFC program is
registered.
• This relay turns off if no SFC program
is registered.
S (Initial) M9100
Q00J/Q00/Q01
*1
Qn(H)
QnPH
QnPRH
QnU
LCPU
SM321
Start/stop SFC
program
OFF: SFC program not
executed (stop)
ON: SFC program
executed (start)
• The same value as in SM320 is set as
the initial value. (This relay turns on
when an SFC program is registered.)
• Turning off this relay stops SFC
program execution.
• Turning on this relay restarts SFC
program execution.
S (Initial)/U
M9101 format
change
Q00J/Q00/Q01
*1
Qn(H)
QnPH
QnPRH
QnU
LCPU
SM322
SFC program start
status
OFF: Initial start
ON: Resume start
In the SFC tab of "PLC Parameter",
"Initial start" is set for "SFC program start
mode".
• At initial start:OFF
• At continued start:ON
S (Initial)/U
M9102 format
change
Q00J/Q00/Q01
*1
Qn(H)
QnPH
QnPRH
QnU
LCPU
Number Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
M9
Corresponding
CPU