Справочник Пользователя для Mitsubishi Electronics FX2NC
FX Series Programmable Controller
Diagnostic Devices 6
6-2
6.1
PLC Status (M8000 to M8009 and D8000 to D8009)
Diagnostic
Device
Operation
Diagnostic
Device
Operation
M8000 (
)
RUN monitor
NO contact
NO contact
D8000 (
)
Watchdog
timer
timer
FX, FX
2C
: 100ms
FX
0
, FX
0S
, FX
0N
, FX
2N
: 200ms
See note 1
M8001 (
)
RUN monitor
NC contact
NC contact
D8001 (
)
PLC type and
version
version
20Vvv FX
0(S)
, FX
0N
, FX, FX
2C
version V.vv
24Vvv: FX
24Vvv: FX
2N
version V.vv
M8002 (
)
Initial pulse
NO contact
NO contact
D8002 (
)
Memory
capacity
capacity
0002: 2K steps
0004: 4K steps
0008: 8K steps
(see also D8102)
0004: 4K steps
0008: 8K steps
(see also D8102)
M8003 (
)
Initial pulse
NC contact
NC contact
D8003 (
)
Memory type
00H = RAM, 01H = EPROM,
02H = EEPROM,
0AH = EEPROM (protected)
10H = MPU memory
02H = EEPROM,
0AH = EEPROM (protected)
10H = MPU memory
M8004 (
)
Error
occurrence
occurrence
ON when one or more error
flags from the range M8060
to M8067 are ON
flags from the range M8060
to M8067 are ON
D8004 (
)
Error number
M
M
The contents of this register
identifies which error
flag is active, i.e. if
=
8060 identifies M8060
M8005
Battery
voltage Low
Battery
voltage Low
On when the battery voltage
is below the value set in
D8006
is below the value set in
D8006
D8005
Battery
voltage
Battery
voltage
E.g. 36 = 3.6 volts
M8006
Battery error
latch
Battery error
latch
Latches the battery Low
error
error
D8006
Low battery
voltage
Low battery
voltage
The level at which a battery
voltage low is detected
voltage low is detected
M8007
Momentary
power failure
Momentary
power failure
D8007
Power failure
count
Power failure
count
The number of time a momen-
tary power failure has occurred
since power ON.
tary power failure has occurred
since power ON.
M8008
Power failure
Power failure
Power loss has occurred
D8008
Power failure
detection
Power failure
detection
The time period before shut
down when a power failure
occurs (default 10ms)
down when a power failure
occurs (default 10ms)
M8009
24V DC Down
24V DC Down
Power failure of 24V DC
service supply
service supply
D8009
24V DC
failed device
24V DC
failed device
Lowest device affected by 24V
DC power failure
DC power failure
FX
0(S)
FX
0N
FX FX
(2C)
FX
2N(C)
RUN
Input
M8061 error occurence
M8000
M8001
M8002
M8003
Program scan time
AC
Power
M8000
M8007
Approx. 5msec
Momentry power failure
M8008
Power failure
Power failure
D8008
10msec
(Power failure
detection period)
detection period)
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.
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.
General note:
•
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.
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.