Mitsubishi Electric A173UHCPU Programming Manual page 356

APPENDICES
Number Name
M9025
Clock data set request
(Note-1)
M9026 Clock data error
M9028
Clock data read request
(Note-2)
M9029 Data communication
(Note-2) request batch processing
M9030 0.1 second clock
M9031 0.2 second clock
M9032 1 second clock
M9033 2 second clock
M9034 1 minute clock
M9036 Always ON
M9037 Always OFF
ON for 1 scan only after
M9038
RUN
RUN flag (OFF for 1 scan
M9039
only after RUN)
M9040 PAUSE enable coil
M9041 PAUSE status contact
M9042 STOP status contact
Sampling trace
M9043
completed
M9044 Sampling trace
Watchdog timer (WDT)
M9045
reset
M9046 Sampling trace
Sampling trace
M9047
preparation
Table 3.1 Special Relay List (Continued)
Stored Data
OFF No processing
ON Data set request
OFF No error
ON Error
OFF No processing
ON Read request
OFF Batch processing not
performed
ON Batch processing performed
0.05 0.05
SEC. SEC.
0.1 0.1
SEC. SEC.
0.5 0.5
SEC. SEC.
1 SEC. 1 SEC.
30 SEC. 30 SEC.
ON
OFF
ON
OFF
ON
1 scan
OFF
ON
1 scan
OFF
OFF PAUSE disable
ON PAUSE enabled
OFF PAUSE not in effect
ON PAUSE in effect
OFF STOP not in effect
ON STOP in effect
OFF Sampling trace in progress
ON Sampling trace completed
0→1 Same as STRA execution
1→0 Same as STRAR execution
OFF WDT is not reset.
ON WDT is reset.
OFF Trace not in progress
ON Trace in progress
OFF Sampling trace stop
ON Sampling trace start
APP − 39
Explanation
!
Writes the clock data stored in D9025 to D9028 to the clock devices
after execution of the END instruction in the scan in which M9025 is
switched ON.
!
Comes ON when there is an error in he clock data (D9025 to D9028)
values. OFF when there is no error.
!
When M2098 is ON, the clock data is read to D9025 to D9028 as
BCD data.
!
By turning ON M9029 in the sequence program, the data
communication requests accepted during one scan are all handled at
the END processing of that scan.
!
Data communication request batch processing can be turned from
ON/OFF to OFF/ON during RUN.
!
The default is OFF. (The data communication requests are handled
one by one at every END processing in their accepted order.)
!
These relays generate the 0.1 second, 0.2 second, 1 second, 2
second, and 1 minute clocks.
! These relays do not go ON/OFF with each scan but when their
respective fixed intervals have elapsed, even during a scan.
!
These relays start from the OFF status when the power is turned on
or resetting.
!
Relay used for initialization during a sequence program or as a
dummy contact for an application instruction.
! M9036 and M9037 retain their ON or OFF status regardless of the
settings of the key switch on the front of the CPU, but M9038 and
M9039 change in accordance with the key switch status. They go
OFF when the key switch is set to the STOP position.
When the key switch is at a position other than STOP, M9038 comes
ON for one scan only, and M9039 goes OFF for one scan only.
! When the RUN/STOP key switch is set to PAUSE or the remote
PAUSE contact is turned on, provided M9040 is ON, the PAUSE
status is established and M9041 comes ON.
!
ON when the RUN/STOP key switch is set to STOP.
!
Comes ON on completion of the number of sampling traces set in the
parameters are completed after execution of the STRA instruction.
After that, it is reset by execution of the STRAR instruction.
!
Turning M9044 ON/OFF enables the STRA / STRAR
to be executed simulatively. (M9044 is forced to be turned ON/OFF
by the peripheral device.)
The STRA instruction is executed
when M9044 turns from OFF to ON.
The STRAR instruction is executed
when M9044 turns from ON to OFF.
!
Turning M9045 ON resets the WDT when the ZCOM instruction or
data communication request batch processing is executed. (Used
when the scan time exceeds 200ms.)
! ON during execution of a sampling trace
!
A sampling trace cannot be executed unless M9047 has been turned
ON.
When M9047 is turned OFF, the sampling trace is stopped.
instruction
The sampling trace
condition is governed by
D9044.