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(2) System information
(3) Scan information
No. Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
M9
Corresponding
CPU
SM206
PAUSE
enable coil
OFF: PAUSE
disabled
ON: PAUSE
enabled
The status changes to PAUSE if this relay is on
when the PAUSE contact turns on.
U M9040
Device test
request
acceptance
status
OFF: Test not
executed
ON: Test executed
This relay turns on when inputs/outputs are
forcibly registered by GX Developer.
S
(Request)
New Rem
SM213
Clock data
read request
OFF: Ignored
ON: Read request
This relay is turned on to read clock data and
store them as BCD values into SD210 to
SD213.
U
M9028
Rem
SM250
Max. loaded
I/O read
OFF: Ignored
ON: Read
When this relay turns on, the largest I/O
number among those of the mounted modules
is read into SD250.
New
QnA
Qn(H)
QnPH
QnPRH
Rem
SM280 CC-Link error
OFF: Normal
ON: Error
Turns on if a CC-Link error is detected in any of
the CC-Link modules mounted. Turns off when
the condition returns to normal.
S
(Status
change)
Qn(H)
QnPH
QnPRH
Rem
Turns on if a CC-Link error is detected in any of
the CC-Link modules mounted. Remains on
even after the condition returns to normal.
S
(Error)
QnA
No. Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
M9
Corresponding
CPU
SM551
Reads module
service
interval
OFF: Ignored
ON: Read
When this relay is turned on, the service
interval of the module specified by SD550 is
read to SD551 and SD552.
UNew
QnA
Qn(H)
QnPH
QnPRH
Rem