APPENDICES
APP
−
39
Table 3.1 Special Relay List (Continued)
Number
Name
Stored Data
Explanation
M9025
(Note-1)
Clock data set request
OFF No processing
ON
Data set request
!
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.
M9026
Clock data error
OFF No error
ON
Error
!
Comes ON when there is an error in he clock data (D9025 to D9028)
values. OFF when there is no error.
M9028
(Note-2)
Clock data read request
OFF No processing
ON
Read request
!
When M2098 is ON, the clock data is read to D9025 to D9028 as
BCD data.
M9029
(Note-2)
Data communication
request batch processing
OFF Batch processing not
performed
ON
Batch processing performed
!
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.)
M9030
0.1 second clock
0.05
SEC.
0.05
SEC.
M9031
0.2 second clock
0.1
SEC.
0.1
SEC.
M9032
1 second clock
0.5
SEC.
0.5
SEC.
M9033
2 second clock
1 SEC.
1 SEC.
M9034
1 minute clock
30 SEC.
30 SEC.
!
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.
M9036
Always ON
ON
OFF
M9037
Always OFF
ON
OFF
M9038
ON for 1 scan only after
RUN
ON
OFF
1 scan
M9039
RUN flag (OFF for 1 scan
only after RUN)
ON
OFF
1 scan
!
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.
M9040
PAUSE enable coil
OFF PAUSE disable
ON
PAUSE enabled
M9041
PAUSE status contact
OFF PAUSE not in effect
ON
PAUSE in effect
!
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.
M9042
STOP status contact
OFF STOP not in effect
ON
STOP in effect
!
ON when the RUN/STOP key switch is set to STOP.
M9043
Sampling trace
completed
OFF Sampling trace in progress
ON
Sampling trace completed
!
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 instruction
to be executed simulatively. (M9044 is forced to be turned ON/OFF
by the peripheral device.)
M9044
Sampling trace
0
→
1 Same as STRA execution
1
→
0 Same as STRAR execution
The STRA instruction is executed
when M9044 turns from OFF to ON.
The STRAR instruction is executed
when M9044 turns from ON to OFF.
The sampling trace
condition is governed by
D9044.
M9045
Watchdog timer (WDT)
reset
OFF WDT is not reset.
ON
WDT is reset.
!
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.)
M9046
Sampling trace
OFF Trace not in progress
ON
Trace in progress
!
ON during execution of a sampling trace
M9047
Sampling trace
preparation
OFF Sampling trace stop
ON
Sampling trace start
!
A sampling trace cannot be executed unless M9047 has been turned
ON.
When M9047 is turned OFF, the sampling trace is stopped.
