Mitsubishi Q00JCPU User Manual page 813

APPENDICES
(12)Process control instructions
Number Name
OFF : No-hold
SM1500 Hold mode
ON : Hold
OFF : No-hold
SM1501 Hold mode
ON : Hold
(13)For redundant systems (Host system CPU information *1)
Number Name
OFF : Redundant system
SM1510 Operation mode
ON : Redundant system
OFF : System A fixed mode
Start mode when
SM1511 ON : Previous control
power supply is on
Start mode when CPU OFF : Initial start
SM1512
is started ON : Hot start
• Distinguishes between system A and system B.
System A identification
• The flag status does not change even if the tracking cable is disconnected.
SM1511
flag
System B identification
SM1512
flag
Operation status when OFF : Initial start
CPU is started ON : Hot start
SM1513
Debug mode status OFF : Not in debug mode
flag ON
Operation mode at OFF : Initial start
SM1514
CPU module change ON : Hot start
OFF : Output reset
SM1515 Output hold mode
ON : Output hold
Operation system OFF : Control system
SM1516
status ON : Standby system
• Indicates operation system status.
Control system
• The flag status does not change even if the tracking cable is disconnected.
SM1515
judgment flag
Standby system
SM1516
judgment flag
*1: The information of the host CPU module is stored.
TableApp.13 Special relay
Meaning
• Specifies whether or not to hold the output value
when a range over occurs for the S.IN instruction
range check.
• Specifies whether or not the output value is held
when a range over occurs for the S.OUT instruction
range check.
SM1510 to SM1599 are only valid for redundant systems.
All off for standalone systems.
TableApp.14 Special relay
Meaning
backup mode, stand-
• Turns on when the operating mode is redundant
alone system
system separate.
separate mode
• Turns on when the start mode for a redundant
system when the power is turned on is the previous
system latch mode control system latch mode.
• Turns on when the CPU module operation mode is
hot start when the redundant system is started up.
System A System B
SM1511 ON OFF
SM1512 OFF ON
• Turns on when the CPU module operation mode is
hot start when the redundant system is actually start
up.
• Turns on when the redundant system operating
: Debug mode mode is set to debug mode.
• Turns on when the operation is hot start when the
CPU module operation is switched for a redundant
system.
• Turns on when the output mode during a stop error is
output hold.
• Turns on when the CPU module operation system
status is the standby system.
Control Standby
system system
SM1515 ON OFF
SM1516 OFF ON
Explanation
Explanation
When TRK. CABLE ERR.
(error code: 6210) occurs (Unknown)
OFF
OFF
When TRK. CABLE ERR.
(error code: 6210) occurs (Unknown)
OFF
OFF
Appendix 1 Special Relay List
Corres-
Set by ponding Corresponding
(When Set) ACPU
M9
U New
QnPRH
U New
Corres-
Set by ponding Corresponding
(When Set) ACPU
M9
S (Each END) New
QnPRH
S (Initial) New
S (Initial) New
S (Initial) New QnPRH
S (Initial) New
S (Initial) New QnPRH
S (Initial) New
S (Each END) New
S (Status change) New
S (Status change) New QnPRH
App
9
10
CPU
Q4AR
QnPH
11
CPU
12
Q4AR
Q4AR
Q4AR
Q4AR
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