Plc Status (M8000 To M8009 And D8000 To D8009) - Mitsubishi FX1S Series Programming Manual

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FX Series Programmable Controller
6.2

PLC Status (M8000 to M8009 and D8000 to D8009)

Diagnostic
Device
7
M8000 (
)
RUN monitor
NO contact
7
M8001 (
)
RUN monitor
NC contact
7
M8002 (
)
Initial pulse
NO contact
7
M8003 (
)
Initial pulse
NC contact
7
M8004 (
)
Error
occurrence
7
M8005 (
)
Battery voltage
Low
(Not FX
, FX
)
1S
1N
7
M8006 (
)
Battery error
latch
(Not FX
, FX
)
1S
1N
7
M8007 (
)
Momentary
power failure
(Not FX
, FX
)
1S
1N
7
M8008 (
)
Power failure
(Not FX
, FX
)
1S
1N
7
M8009 (
)
24V DC Down
(Not FX
, FX
)
1S
1N
For symbol key see page 6-1.
Note 1:
The contents of this register can be changed by the user.
Settings in 1 msec steps are possible. The value should
be set greater than the maximum scan time (D8012) to
ensure constant scan operation.
Note 2:
When the power supply used is 200V AC, the power
down detection period is determined by the value of
D8008. This can be altered by the user within the
allowable range of 10 to 100msec.
Operation
ON when one or more error
flags from the range M8060
to M8067 are ON
On when the battery
voltage is below the value
set in D8006
Latches the battery Low
error
See note 2
Power loss has occurred
See note 2
Power failure of 24V DC
service supply
FX
1S
Diagnostic
Device
D8000 (-)
FX
1S
Watchdog
200ms
timer
See note 1
FX
7
1S
D8001 (
)
FX
1N
PLC type and
FX
2N
version
FX
2NC
7
D8002 (
)
0002: 2K steps (FX
Memory
0004: 4K steps (FX
0008: 8K or 16k steps (FX
capacity
FX
2N
(see also D8102)
00H = Option RAM,
7
01H = Option EPROM,
D8003 (
)
02H = Option EEPROM,
Memory type
0AH = Option EEPROM
10H = Built-in MPU memory
7
D8004 (
)
The contents of this register 2222
Error number
identifies which error flag is active, i.e.
if 2222 = 8060 identifies M8060
MPPPP
7
D8005 (
)
E.g. 36 = 3.6 volts
Battery voltage
(Not FX
, FX
)
1S
1N
7
D8006 (
)
The level at which a low
Low battery
battery voltage is detected
voltage
(Not FX
, FX
)
1S
1N
7
D8007 (
)
The number of times a
momentary power failure has
Power failure
occurred since power ON.
count
(Not FX
, FX
)
1S
1N
The time period before shut
D8008
down when a power failure
Power failure
occurs (default 10ms)
detection.
See note 2
(Not FX
, FX
)
1S
1N
7
D8009 (
)
Lowest device affected by 24V
24V DC failed
DC power failure
device
(Not FX
, FX
)
1S
1N
AC
Power
M8000
Approx. 5msec
M8007
Momentary power failure
M8008
Power failure
Diagnostic Devices 6
FX
FX
FX
1N
2N
2NC
Operation
, FX
, FX
, FX
:
1N
2N
2NC
: 22
: 26
E.g. 26100 = FX1N, V1.00
: 24
: 24
only)
1S
, FX
)
2N
2NC
,
1N
, FX
)
2NC
(protected)
(Power failure
D8008
detection period)
10msec
6-7

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