Mitsubishi Q2ACPU User Manual page 463

APPENDICES
(10)Process control instructions
Number Name
SM1500 Hold mode
SM1501 Hold mode
(11)For redundant systems (Host system CPU information *1)
Number Name
SM1510 Operation mode
Start mode when
SM1511
power supply is on
Start mode when CPU
SM1512
is started
Operation status when
SM1513
CPU is started
Operation mode at
SM1514
CPU module change
SM1515 Output hold mode
Operation system
SM1516
status
*1: The information of the host CPU module is stored.
Table App. 2.11. Special relay
Meaning
• Specifies whether or not to hold the output value
OFF : No-hold
when a range over occurs for the S.IN instruction
ON : Hold
range check.
• Specifies whether or not the output value is held
OFF : No-hold
when a range over occurs for the S.OUT instruction
ON : Hold
range check.
SM1510 to SM1599 are only valid for redundant systems.
All off for standalone systems.
Table App. 2.12. Special relay
Meaning
OFF : Redundant system
backup mode, stand-
• Turns on when the operating mode is redundant
alone system
system separate.
ON : Redundant system
separate mode
OFF : System A fixed mode • Turns on when the start mode for a redundant
ON : Previous control system when the power is turned on is the previous
system latch mode control system latch mode.
OFF : Initial start • Turns on when the CPU module operation mode is
ON : Hot start hot start when the redundant system is started up.
• Turns on when the CPU module operation mode is
OFF : Initial start
hot start when the redundant system is actually start
ON : Hot start
up.
• Turns on when the operation is hot start when the
OFF : Initial start
CPU module operation is switched for a redundant
ON : Hot start
system.
OFF : Output reset • Turns on when the output mode during a stop error is
ON : Output hold output hold.
OFF : Control system • Turns on when the CPU module operation system
ON : Standby system status is the standby system.
Explanation
Explanation
App - 66
Corres-
Set by ponding Corresponding
ACPU
(When Set)
M9
U New
U New
Corres-
ponding
Set by Corresponding
ACPU
(When Set)
M9
S (Each END) New
S (Initial) New
S (Initial) New
S (Initial) New
S (Initial) New
S (Each END) New
S (Status change) New
CPU
Q4AR
Q4AR
CPU
Q4AR
Q4AR
Q4AR
Q4AR
Q4AR
Q4AR
Q4AR