Mitsubishi Q2ACPU - Page 457

App - 60
APPENDICES
Table App. 2.10. Special relay
ACPU
Special
Relay
Special
Relay after
Conversion
Special
Relay for
Modification
Name Meaning Details
Corresponding
CPU
M9011 SM1011 SM56
Operation error
flag
OFF : No error
ON : Error
• Turned on when operation error occurs during execution
of application instruction.
• Remains ON if the condition is restored to normal
thereafter.
QnA
M9012 SM1012 SM700 Carry flag
OFF : Carry OFF
ON : Carry ON
• Carry flag used in application instruction.
QnA
M9016 SM1016
Data memory clear
flag
OFF : lgnored
ON : Output claered
• 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.
–
M9017 SM1017
Data memory clear
flag
OFF : lgnored
ON : Output claered
• Clears the unlatched data memory (other than special
relays and special egisters) in remote run mode from
computer, etc. when SM1017 is on.
–
M9020 SM1020 –
User timing clock
No.0
• 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.
n1: ON scan interval
n2: OFF scan interval
QnA
M9021 SM1021 –
User timing clock
No.1
QnA
M9022 SM1022 –
User timing clock
No.2
QnA
M9023 SM1023 –
User timing clock
No.3
QnA
M9024 SM1024 –
User timing clock
No.4
QnA
M9025 SM1025 –
Clock data set
request
OFF : Ignored
ON : Set request present
used
• 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.
QnA
M9026 SM1026 – Clock data error
OFF : No error
ON : Error
• Switched on by clock data (SD1025 to SD1028) error
QnA
M9027 SM1027 – Clock data display
OFF : Ignored
ON : Display
• Clock data is read from SD1025 to SD1028 and month,
day, hour, minute and minute are indicated on the CPU
module front LED display.
Q3A
Q4A
Q4AR
M9028 SM1028 –
Clock data read
request
OFF : Ignored
ON : Read request
• Reads clock data to SD1025 to SD1028 in BCD when
SD1028 is on.
QnA
M9029 SM1029
Batch processing
of data
communications
requests
OFF : Batch processing not
conducted
ON : Batch processing
conducted
• 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).
–
M9030 SM1030 – 0.1 second clock
• 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 PLC power supply is turned on or
CPU module reset is performed.
QnA
M9031 SM1031 – 0.2 second clock
M9032 SM1032 – 1 second clock
M9033 SM1033 – 2 second clock
M9034 SM1034 –
2n minute clock(1
minute clock)*
• Alternates between ON and OFF according to the
seconds specified at SD414. (Default: n = 30)
• Not turned on or off per scan but turned on and off even
during scan if corresponding time has elapsed.
• Starts with off when PLC power supply is turned on or
CPU module reset is performed..
QnA
M9036 SM1036 – Always ON
• Used as dummy contacts of initialization and application
instruction in sequence program.
• SM1038 and SM1037 are turned on and off without regard
to position of key switch on CPU module front. SM1038
and SM1039 are under the same condition as RUN status
except when the key switch is at STOP position, and
turned off and on. Switched off if the key switch is in STOP
position. SM1038 is on for one scan only and SM1039 is
off for one scan only if the key switch is not in STOP
position.
QnA
M9037 SM1037 – Always OFF
M9038 SM1038 –
ON for 1 scan only
after RUN
M9039 SM1039 –
RUN flag(After
RUN, OFF for 1
scan only)
n1 scan
n2 scan n2 scan
DUTY n1 n2 SM1020
0.05s
0.05s
0.1s
0.1s
0.5s
0.5s
1s
1s
ns
ns
ON
OFF
ON
OFF
ON
OFF
1 scan
ON
OFF
1 scan