Mitsubishi Electric MELSEC-Q Structured Programming Manual page 158

FXCPU Structured Programming Manual
[Device & Common]
2. FX /FX /FX
1S 1N
Number and name
PLC status
[M]8000
RUN monitor
NO contact
[M]8001
RUN monitor
NC contact
[M]8002
Initial pulse
NO contact
[M]8003
Initial pulse
NC contact
[M]8004 • Remains ON while either one among M8060, M8061,
Error occurrence M8063, M8064, M8065, M8066 and M8067 is ON.
[M]8005 Remains ON while the battery voltage is abnormally low.
Battery voltage low
[M]8006
Turns ON when abnormally low battery voltage is detected.
Battery voltage low
latch
Remains ON during 1 scan when instantaneous power
interruption is detected.
[M]8007
Even if M8007 turns ON, the PLC continues operation as far
Instantaneous power
as the duration of low supply voltage is within the time
interruption
period specified by D8008.
Turns ON when instantaneous power interruption is
detected.
[M]8008 When the duration of low supply voltage exceeds the time
Power interruption period specified by D8008, M8008 turns OFF and the PLC
switches to the STOP mode (M8000 = OFF).
[M]8009
Turns ON when 24V DC power fails in either function unit
24V DC failure
*1. Function units are available only in FX
156
/FX /FX PLCs
2N 1NC 2NC
Operation and function
RUN
input
M8061
Error occurrence
M8000
M8001
M8002
M8003
Scan time
→ Refer to Subsection 4.2.1.
→ Refer to Subsection 4.2.3.
→ Refer to Subsection 4.2.3.
→ Refer to Subsection 4.2.4.
→ Refer to Subsection 4.2.4.
4 Operations of Special Devices (M8000 and later, D8000 and later)
4.1 Special Device List (M8000 and later, D8000 and later)
FX FX
1S 1N
- -
- -
- -
- -
*1
- -
.
/FX PLCs.
1N 2N
Applicable model
Corresponding
FX FX FX
2N 1NC 2NC
special device
-
-
-
-
-
-
-
-
-
D8004
D8005
D8006
D8007
D8008
D8009