12
TROUBLESHOOTING
ACPU
Special
Special
Special
Relay after
Relay for
Relay
Conversion
Modification
–
M9005
SM1005
–
M9006
SM1006
–
M9007
SM1007
M9008
SM1008
SM1
M9009
SM1009
SM62
M9011
SM1011
SM56
M9012
SM1012
SM700
M9016
SM1016
M9017
SM1017
–
M9020
SM1020
–
M9021
SM1021
–
M9022
SM1022
–
M9023
SM1023
–
M9024
SM1024
–
M9025
SM1025
–
M9026
SM1026
–
M9027
SM1027
–
M9028
SM1028
M9029
SM1029
–
M9030
SM1030
–
M9031
SM1031
–
M9032
SM1032
–
M9033
SM1033
Table12.37 Special relay
Name
Meaning
OFF : AC DOWN not
AC DOWN
detected
detection
ON : AC DOWN detected
OFF : Normal
Battery low
ON : Battery low
OFF : Normal
Battery low latch
ON : Battery low
Self-diagnosis
OFF : No error
error
ON : Error
Annunciator
OFF : No F number detected
detection
ON : F number detected
Operation error
OFF : No error
flag
ON : Error
OFF : Carry OFF
Carry flag
ON : Carry ON
Data memory clear
OFF : lgnored
flag
ON : Output claered
Data memory clear
OFF : lgnored
flag
ON : Output claered
User timing clock
No.0
User timing clock
No.1
n2 scan
n2 scan
User timing clock
No.2
n1 scan
User timing clock
No.3
User timing clock
No.4
OFF : Ignored
Clock data set
ON : Set request present
request
used
OFF : No error
Clock data error
ON : Error
OFF : Ignored
Clock data display
ON : Display
Clock data read
OFF : Ignored
request
ON : Read request
Batch processing
OFF : Batch processing not
of data
conducted
communications
ON : Batch processing
requests
conducted
0.05s
0.1 second clock
0.05s
0.1s
0.2 second clock
0.1s
0.5s
1 second clock
0.5s
1s
2 second clock
1s
Details
• Turns ON if an instantaneous power failure of within 20ms
occurs during use of the AC power supply module.
• Reset when the power supply is switched OFF, then ON.
• Turns ON if an instantaneous power failure of within 10ms
occurs during use of the DC power supply module.
• Reset when the power supply is switched OFF, then ON.
• Turns ON if an instantaneous power failure of within 1ms
occurs during use of the DC power supply module.
• Reset when the power supply is switched OFF, then ON.
• Turns ON when the battery voltage drops to or below the
specified.
• Turns OFF when the battery voltage returns to normal
thereafter.
• Turns ON when the battery voltage drops to or below the
specified.
• Remains ON if the battery voltage returns to normal
thereafter.
• Turned on when error is found as a result of self-
diagnosis.
• Turned on when OUT F of SET F instruction is
executed.
• Switched off when SD1124 data is cleared to zero.
• Turned on when operation error occurs during execution
of application instruction.
• Remains ON if the condition is restored to normal
thereafter.
• Carry flag used in application instruction.
• Clears the data memory including the latch range (other
than special relays and special registers) in remote run
mode from computer, etc. when SM1016 is on.
• Clears the unlatched data memory (other than special
relays and special registers) in remote run mode from
computer, etc. when SM1017 is on.
• Relay which repeats on/off at intervals of predetermined
scan.
• When power is turned on or reset is per-formed, the clock
starts with off.
Set the intervals of on/off by DUTY instruction.
DUTY n1 n2 SM1020
n1: ON scan interval
n2: OFF scan interval
• Writes the clock data stored in SD1025 to SD1028 to the
CPU module after the END instruction is executed in the
scan in which SM1025 turned from OFF to ON.
• Switched on by clock data (SD1025 to SD1028) error
• Clock data is read from SD1025 to SD1028 and month,
day, hour, minute and minute are indicated on the CPU
module front LED display.
• Reads clock data to SD1025 to SD1028 in BCD when
SD1028 is on.
• The SM1029 relay is turned on using a sequence program
to process all data communication requests accepted
during one scan in the END processing of that scan.
• The batch processing of the data communication requests
can be turned on and off during running.
• The default is OFF (processed one at a time for each END
processing in the order in which data communication
requests are accepted).
• 0.1 second, 0.2 second, 1 second and 2 second, clocks
are generated.
• Not turned on or off per scan but turned on and off even
during scan if corresponding time has elapsed.
• Starts with off when Programmable Controller power
supply is turned on or CPU module reset is performed.
12.7 Special Relay List
9
Corresponding
CPU
QnA
Qn(H)
QnPH
10
Qn(H)
QnPH
QnA
11
12
QnA
Qn(H)
QnPH
Q3A
Q4A
Q4AR
QnA
Qn(H)
QnPH
12
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