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 8040
Transfer disable

While M8040 is turned ON, transfer between
states is disabled.

–

[M]8041

*1

Transfer start

Transfer from initial state is enabled in
automatic operation mode.

–

[M]8042
Start pulse

Pulse output is given in response to a start
input.

–

 M 8043

*1

Zero return complete

Set this in the last state of zero return mode.

–

 M 8044

*1

Zero point condition

Set this when machine zero return is detected.

–

 M 8045
All output reset 
disable

Disables the ’all output reset’ function when the
operation mode is changed.

–

[M]8046

*2

STL state ON

ON when M8047 is ON and any state S0 to
S899 or S1000 to S4095

*3

 is active.

M8047

 M 8047

*2

STL monitoring 
enable

D8040 to D8047 are enabled when M8047 is
ON.

D8040 to 

D8047

[M]8048

*2

Annunciator
operate

ON when M8049 is ON and any annunciator
S900 to S999 is ON.

–

–

–

–

–

 M 8049

*1

Annunciator enable

D8049 is enabled when M8049 is ON.

–

D8049

M8048

–

–

–

*1.

Cleared when the PLC switches from RUN to STOP.

*2.

Executed at END instruction.

*3.

S1000 to S4095 are available only in the FX

3G

/FX

3GC

/FX

3U

/FX

3UC

 Series PLCs.

M8050 
(input interrupt)
I00  disable

*4

•

If an input interrupt or timer interrupt occurs
while a special auxiliary relay for that
interrupt (M8050 - M8058) is ON, the
interrupt will not operate.
For example, turning M8050 ON disables
the I00  interrupt; hence, the interrupt
routine is not processed even in an
allowable program area.

•

If an input interrupt or timer interrupt occurs
while a special auxiliary relay for that
interrupt (M8050 - M8058) is OFF, 

a) The interrupt will be accepted.
b) The interrupt routine will be processed

promptly if it is permitted by the EI
(FNC 04) instruction. However, if the
DI (FNC 05) instruction disables
interrupts, the interrupt program will
not be processed until EI (FNC 04)
permits the interrupts.

–

M8051 
(input interrupt)
I10  disable

*4

–

M8052 
(input interrupt)
I20  disable

*4

–

M8053 
(input interrupt)
I30  disable

*4

–

M8054 
(input interrupt)
I40  disable

*4

–

M8055 
(input interrupt)
I50  disable

*4

–

M8056 
(Timer interrupt)
I6

 disable

*4

–

–

–

–

M8057 
(Timer interrupt)
I7

 disable

*4

–

–

–

–

M8058 
(Timer interrupt)
I8

 disable

*4

–

–

–

–

M8059
Counter interrupt 
disable

*4

Interrupt of I010 to I060 disabled

–

–

–

–

–

–

–

*4.

Cleared when the PLC switches from RUN to STOP.