Specifications

App - 28
Special Relay List
(1) Diagnostic Information
Number Name Meaning Explanation
Set by
(When set)
Applicable
ACPU
M9
Applicable
CPU
SM0
Diagnostic
errors
OFF : No error
ON : Error
• Turns ON if diagnosis results show error occurrence.
(Including the annunciator being ON and the detection
of an error by the CHK instruction.)
• Stays ON subsequently even if normal operations are
restored
S (Error
occurrence)
New
SM1
Self-diagnostic
error
OFF : No self-diagnosis
errors
ON : Self-diagnosis
• Turns ON when an error occurs as a result of
self-diagnosis. (Excluding the annunciator being ON
and the detection of an error by the CHK instruction.)
• Stays ON subsequently even if normal operations
restored.
S (Error
occurrence)
M9008
SM5
Error common
information
OFF : No error common
information
ON : Error common
information
• , Turns ON if there is error common information when
SM0 is ON
S (Error
occurrence)
New
SM16
Error individual
information
OFF : No error common
information
ON : Error common
information
• Turns ON if there is error individual information when
SM0 is ON
S (Error
occurrence)
New
SM50 Error reset OFF ON: Error reset • Performs the error reset operation U New
+ Rem
SM60
Fuse blown
detection
OFF : Normal
ON : Module with fuse
blown
• Turns ON even if there is only one output module with a
fuse blown, and remains ON even after returning to
normal
• Fuse blown state is checked even for remote I/O station
output modules.
S (Error
occurrence)
M9000
SM61
I/O module
verification error
OFF : Normal
ON : Error
• Turns ON if there is a discrepancy between the actual
I/O modules and the registered information when the
power is turned on, and remains ON even after
returning to normal.
• I/O module verification is also performed for remote I/O
station modules.
S (Error
occurrence)
M9002
+ Rem
SM120
Detection of
external power
supply OFF
OFF : Normal
ON : There is a module
whose external
power supply is OFF.
• Turns ON when at least one module is in the status
where the external power supply is OFF. Remains ON
even after returning to normal.
*
Applicable only for Q-series modules. (For future use)
S (Error
occurrence)
New
QCPU
Rem
(2) System information
Number Name Meaning Explanation
Set by
(When set)
Applicable
ACPU
M9
Applicable
CPU
PAUSE enable
coil
OFF : PAUSE disabled
ON : PAUSE enabled
• If this relay is ON when the remote PAUSE contact
turns ON, the PAUSE state is entered.
U M9040
SM206
Device test
request
acceptance
status
OFF : Device test not yet
executed
ON : Device test executed
• Turns ON when the device test mode is executed on
GX Developer.
S (Request) New Rem
SM213
Clock data read
request
OFF : Ignored
ON : Read request
• When this relay is ON, the clock data is read to SD210
through SD213 as BCD values.
U M9028 + Rem
SM250
Max. loaded I/O
read
OFF : Ignored
ON : Read
• When this relay turns from OFF to ON, the maximum
loaded I/O number is read to SD250.
U New + Rem
• Turns ON when a CC-Link error is detected in any of
the installed QJ61QBT11. Turns OFF when normal
operation is restored.
S (Status
change)
New
QCPU
Rem
SM280 CC-Link error
OFF : Normal
ON : Error
• Goes ON when a CC-Link error is detected in any of the
installed A(1S)J61QBT11. Stays ON even after the
normal operation is restored.
S (Error
occurrence)
New QnA
(3) Scan information
Number Name Meaning Explanation
Set by
(When set)
Applicable
ACPU
M9
Applicable
CPU
SM551
Reads module
service interval
OFF : Ignored
ON : Read
• When this turns from OFF to ON, the module service
interval designated by SD550 is read to SD551 through
552.
U New
+ Rem