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

[M]8010

Not used

–

–

–

–

–

–

–

–

–

–

–

[M]8011
10 ms clock pulse

ON and OFF in 10 ms cycles 
(ON: 5 ms, OFF: 5 ms)

→Refer to Subsection 37.2.6.

–

[M]8012
100 ms clock pulse

ON and OFF in 100 ms cycles 
(ON: 50 ms, OFF: 50 ms)

→Refer to Subsection 37.2.6.

–

[M]8013
1 sec clock pulse

ON and OFF in 1 sec cycles 
(ON: 500 ms, OFF: 500 ms)

→Refer to Subsection 37.2.6.

–

[M]8014
1 min clock pulse

ON and OFF in 1 min cycles 
(ON: 30 sec, OFF: 30 sec)

→Refer to Subsection 37.2.6.

–

 M 8015

Clock stop and preset
For real time clock

→Refer to Subsection 37.2.7.

–

*3

 M 8016

Time read display is stopped
For real time clock

→Refer to Subsection 37.2.7.

–

*3

 M 8017

±30 seconds correction
For real time clock

→Refer to Subsection 37.2.7.

–

*3

[M]8018

Installation detection (Always ON)
For real time clock

→Refer to Subsection 37.2.7.

–

 (Always ON)

*3

 M 8019

Real time clock (RTC) error
For real time clock

→Refer to Subsection 37.2.7.

–

*3

[M]8020
Zero

ON when the result of addition/subtraction is 0.

→Refer to Subsection 6.5.2 for usage.

–

[M]8021
Borrow

ON when the result of subtraction is less than
the min. negative number.

→Refer to Subsection 6.5.2 for usage.

–

 M 8022
Carry

ON when 'carry' occurs in result of addition or
when an overflow occurs in result of shift
operation.

→Refer to Subsection 6.5.2 for usage.

–

[M]8023

Not used

–

–

–

–

–

–

–

–

–

–

–

 M 8024

*1

BMOV direction specification
(FNC 15)

–

–

 M 8025

*2

HSC mode
(FNC 53 to 55)

–

–

–

–

–

–

–

 M 8026

*2

RAMP mode
(FNC 67)

–

–

–

–

–

–

–

 M 8027

*2

PR mode
(FNC 77)

–

–

–

–

–

–

–

 M 8028

100 ms/10 ms timer changeover

–

–

–

–

–

–

–

–

–

Interrupt permission during FROM/TO (FNC 78
and 79) instruction execution

–

–

–

–

–

[M]8029
Instruction
execution 
complete

ON when operation such as DSW (FNC 72) is
completed.

→Refer to Subsection 6.5.2 for usage.

–

*1.

The operation varies according to PLC:
-

Not cleared in an FX

1N

/FX

1NC

/FX

2N

/FX

2NC

 PLCs.

-

Cleared in an FX

3S

/FX

3G

/FX

3GC

/FX

3U

/FX

3UC

 PLCs when PLC switches from RUN to STOP.

*2.

The operation varies according to PLC:
-

Not cleared in an FX

2N

/FX

2NC

 PLCs.

-

Cleared in an FX

3U

/FX

3UC

 PLCs when PLC switches from RUN to STOP.

*3.

The FX

2NC

 PLC requires the optional memory board (with the real time clock).