
APPENDICES
APP - 14
MELSEC-A
Table 2.1
Special relay list (Continue)
Number
Name
Description
Details
Applicable CPU
M9095
Duplex operation
verify error
OFF: Normal
ON: Duplex operation
verify error
• During duplex operation of the operating CPU with a
stand-by CPU, verification is performed by the both
to each other. Turned on when a verify error
occurred.
—
Dedicated to A3V.
M9096
A3VCPU A
selfcheck error
OFF: No error
ON: Error
• Turn on when a self-check error occurred on the
A3VCPU A mounted next to the A3VTU.
—
Dedicated to A3V.
M9097
A3VCPU B
selfcheck error
OFF: No error
ON: Error
• Turn on when a self-check error occurred on the
A3VCPU B mounted next to the A3VCPU A.
—
Dedicated to A3V.
M9098
A3VCPU C
selfcheck error
OFF: No error
ON: Error
• Turn on when a self-check error occurred on the
A3VCPU C mounted next to the A3VCPU B.
—
Dedicated to A3V.
M9099
A3VTU selfcheck
error
OFF: No error
ON: Error
• Turned on when a self-check error occurred on the
A3VTU.
—
Dedicated to A3V.
M9100
SFC program
registration
OFF: No SFC program
ON: SFC program
registered
• Turned on if the SFC program is registered, and
turned off if it is not.
—
Usable with AnN
,
AnA
, AnU,
A2AS, QCPU-A
(A Mode), A2C,
A0J2H, AnS,
AnSH, A1FX and
A52G.
2
M9101
SFC program
start/stop
OFF: SFC program stop
ON: SFC program start
• Should be turned on by the program if the SFC
program is to be started. If turned off, operation
output of the execution step is turned off and the
SFC program is stopped.
—
Usable with AnN
,
AnA
, AnU,
A2AS, QCPU-A
(A Mode), A2C,
A0J2H, AnS,
AnSH, A1FX and
A52G.
2
M9102
SFC program
starting status
OFF: Initial start
ON: Continuous start
• Selects the starting step when the SFC program is
restarted using M9101.
ON: Started with the step of the block being
executed when the program stopped.
OFF: All execution conditions when the SFC program
stopped are cleared, and the program is started
with the initial step of block 0.
• Once turned on, the program is latched in the system
and remains on even if the power is turned off.
Should be turned off by the sequence program when
turning on the power, or when starting with the initial
step of block 0.
—
Usable with AnN
,
AnA
, AnU,
A2AS, QCPU-A
(A Mode), A2C,
A0J2H, AnS,
AnSH, A1FX and
A52G.
2
M9103
Consecutive step
transfer
enable/disable
OFF: Consecutive step
transfer disable
ON: Consecutive step
transfer enable
• Selects consecutive or step-by-step transfer of steps
of which transfer conditions are established when all
of the transfer conditions of consecutive steps are
established.
ON:
Consecutive transfer is executed.
OFF: One step per one scan is transferred.
—
Usable with AnN
,
AnA
, AnU,
A2AS, QCPU-A
(A Mode), A2C,
A0J2H, AnS,
AnSH, A1FX and
A52G.
M9104
Consecutive
transfer
prevention flag
OFF: Transfer complete
ON: Transfer incomplete
• Turned on when consecutive transfer is not executed
with consecutive transfer enabled. Turned off when
transfer of one step is completed.
Consecutive transfer of a step can be prevented by
writing an AND condition to corresponding M9104.
—
Usable with AnN
,
AnA
, AnU,
A2AS, QCPU-A
(A Mode), A2C,
A0J2H, AnS,
AnSH, A1FX and
A52G.
: Usable with AnN and AnA which are compatible with SFC.
For the AnN and AnA which are compatible with SFC, refer to the MELSAP-II Programming Manual.
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