Mitsubishi Electronics FX3G User Manual

FX

3S

/FX

3G

/FX

3GC

/FX

3U

/FX

3UC

 Series

Programming Manual - Basic & Applied Instruction Edition

37 Operation of Special Devices (M8000 -, D8000 -)

FNC277

-F

NC2
79

Da

ta

 

Trans
fer 3

FNC28

0-F

NC
289

H

igh-Speed 

Process

ing 2

FNC2

90-
FNC299

Ex

tensi

on Fi
le

 

Register C

ontrol

FN

C300-

FNC30

5

FX

3U

-C

F-

AD

P

SFC

•STL

Programming

Interrupt 

Function

Sp

ec

ia

l D

evi

ce

E

rror Code

Ve

rsi

on U

p 

Inform

ati

on

Ex

ecuti

on

 T

imes

[D]8007
Momentary power 
failure count

Operation frequency of M8007 is stored.
Cleared at power-off.

–

–

–

M8007

–

–

–

 D8008
Power failure 
detection

Default:

*1

•

FX

3U

/FX

2N

 PLCs: 

10 ms (AC power supply type)

•

FX

3UC

/FX

2NC

 PLCs: 

5 ms (DC power supply type)

–

–

–

M8008

–

–

–

[D]8009
24V DC failed
device

Lowest input device number of the I/O
extension units in which 24 V DC power has
failed

–

–

–

M8009

–

–

–

*1.

The power failure detection time in FX

2N

/FX

2NC

 PLCs is as follows.

For FX

3U

/FX

3UC

 PLCs, refer to Subsection 37.2.4.

-

10ms  for  FX

2N

 PLC used with a 100V AC power supply system. D8008 is set to 10ms by default.

-

100ms maximum for FX

2N

 PLC used with a 200V AC power supply system. D8008 can be set ranging

from 10 to 100 ms.

-

5ms for FX

2N

 PLC used with a DC power supply type. Write "K-1" to D8008 for correction. 

-

5ms for FX

2NC

 PLC used with a DC power supply type. System writes "K-1" to D8008 for correction. Do

not make any change in a sequence program. 

[D]8010
Present scan time

Accumulated instruction-execution time from
step 0
(in 0.1-ms units)

→Refer to Subsection 37.2.5.

Same 

as on 

the 

right

Same 

as on 

the 

right

Same 

as on 

the 

right

Same 

as on 

the 

right

Same 

as on 

the 

right

–

Indicated value includes waiting 

time of constant scan operation 

(when M8039 is activated).

[D]8011
Minimum scan time

Minimum value of scan time
(in 0.1-ms units)

→Refer to Subsection 37.2.5.

–

[D]8012
Maximum scan
time

Maximum value of scan time
(in 0.1-ms units)

→Refer to Subsection 37.2.5.

–

 D8013
Second data

0 to 59 seconds
(for real time clock)

→Refer to Subsection 37.2.7.

–

*2

 D8014
Minute data

0 to 59 minutes
(for real time clock)

→Refer to Subsection 37.2.7.

–

*2

 D8015
Hour data

0 to 23 hours
(for real time clock)

→Refer to Subsection 37.2.7.

–

*2

 D8016
Day data

1 to 31 days
(for real time clock)

→Refer to Subsection 37.2.7.

–

*2

 D8017
Month data

1 to 12 months
(for real time clock)

→Refer to Subsection 37.2.7.

–

*2

 D8018
Year data

2 digits of year data (0 to 99)
(for real time clock)

→Refer to Subsection 37.2.7.

–

*2

 D8019
Day-of-the-week
data

0 (Sunday) to 6 (Saturday)
(for real time clock)

→Refer to Subsection 37.2.7.

–

*2

*2.

A memory board having the real time clock function is required in FX

2NC

 PLC.