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]8400

Not used

–

–

–

–

–

–

–

–

–

–

–

[M]8401

*1

RS2 (FNC 87) [ch1] Send wait flag

–

–

–

–

–

–

 M 8402

*1

RS2 (FNC 87) [ch1] Send request

D8402

–

–

–

–

–

 M 8403

*1

RS2 (FNC 87) [ch1] Receive complete flag

D8403

–

–

–

–

–

[M]8404

RS2 (FNC 87) [ch1] Carrier detection flag

–

–

–

–

–

–

[M]8405

RS2 (FNC 87) [ch1] Data set ready (DSR) flag

*3

*3

–

–

–

–

–

–

[M]8406 to [M]8408 Not used

–

–

–

–

–

–

–

–

–

–

–

 M 8409

RS2 (FNC 87) [ch1] Time-out check flag

–

–

–

–

–

–

[M]8410 to [M]8420 Not used

–

–

–

–

–

–

–

–

–

–

–

[M]8421

*2

RS2 (FNC 87) [ch2] Send wait flag

–

–

–

–

–

–

–

 M 8422

*2

RS2 (FNC 87) [ch2] Send request

–

D8422

–

–

–

–

–

 M 8423

*2

RS2 (FNC 87) [ch2] Receive complete flag

–

D8423

–

–

–

–

–

[M]8424

RS2 (FNC 87) [ch2] Carrier detection flag

–

–

–

–

–

–

–

[M]8425

RS2 (FNC 87) [ch2] Data set ready (DSR) flag

–

*3

*3

–

–

–

–

–

–

[M]8426

Computer link [ch2] Global ON

–

D8427
D8428
D8429

–

–

–

–

–

[M]8427

Computer link [ch2] 
On-demand send processing

–

–

–

–

–

–

 M 8428

Computer link [ch2] On-demand error flag

–

–

–

–

–

–

 M 8429

Computer link [ch2] 
On-demand Word / Byte changeover
RS2 (FNC 87) [ch2] 
Time-out check flag

–

–

–

–

–

–

*1.

These devices are cleared when the PLC mode switches from RUN to STOP or when the RS2 instruction
[ch1] turns OFF.

*2.

These devices are cleared when the PLC mode switches from RUN to STOP or when the RS2 instruction
[ch2] turns OFF.

*3.

Available in Ver. 2.30 or later.

[M]8401

MODBUS request in process

*4

*5

*5

–

–

–

–

–

–

[M]8402

MODBUS communication error

*4

*5

*5

D8402

–

–

–

–

–

[M]8403

MODBUS communication error (latched)

*4

*5

*5

D8403

–

–

–

–

–

[M]8404

Listen only mode

–

–

–

*5

*5

–

–

–

–

–

–

[M]8405 to [M]8407 Not used

–

–

–

–

–

–

–

–

–

–

–

[M]8408

Retry

*4

*5

*5

–

–

–

–

–

–

[M]8409

Timeout

*4

*5

*5

–

–

–

–

–

–

[M]8410

Not used

–

–

–

–

–

–

–

–

–

–

–

[M]8421

MODBUS request in process

–

*4

*5

*5

–

–

–

–

–

–

[M]8422

MODBUS communication error

–

*4

*5

*5

D8422

–

–

–

–

–

[M]8423

MODBUS communication error (latched)

–

*4

*5

*5

D8423

–

–

–

–

–

[M]8424

Listen only mode

–

–

–

*5

*5

–

–

–

–

–

–

[M]8425 to [M]8427 Not used

–

–

–

–

–

–

–

–

–

–

–

[M]8428

Retry

–

*4

*5

*5

–

–

–

–

–

–

[M]8429

Timeout

–

*4

*5

*5

–

–

–

–

–

–

[M]8430

Not used

–

–

–

–

–

–

–

–

–

–

–

 M 8411

MODBUS configuration request flag

*4

*5

*5

–

–

–

–

–

–

*4.

Available in Ver. 1.30 or later.

*5.

Available in Ver. 2.40 or later.