Mitsubishi Electronics FX3G Manuale Utente
839
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
37 Operation of Special Devices (M8000 -, D8000 -)
37.1 Special Device List (M8000 -, D8000 -)
31
FNC277
-F
NC2
79
79
Da
ta
Trans
fer 3
fer 3
32
FNC28
0-F
NC
289
289
H
igh-Speed
Process
ing 2
33
FNC2
90-
FNC299
FNC299
Ex
tensi
on Fi
le
le
Register C
ontrol
34
FN
C300-
FNC30
5
FX
3U
-C
F-
AD
P
35
SFC
•STL
Programming
36
Interrupt
Function
37
Sp
ec
ia
l D
evi
ce
38
E
rror Code
A
Ve
rsi
on U
p
Inform
ati
on
B
Ex
ecuti
on
T
imes
RS2 (FNC 87) [ch1] (Refer to Data Communication Edition for details.)
[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
–
–
–
–
–
–
RS2 (FNC 87) [ch2] and Computer Link [ch2] (Refer to the Data Communication Edition for details.)
[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
D8428
D8429
–
–
–
–
–
[M]8427
Computer link [ch2]
On-demand send processing
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
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.
[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.
[ch2] turns OFF.
*3.
Available in Ver. 2.30 or later.
MODBUS communication [ch1] (Refer to MODBUS Communication Edition for details.)
[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
–
–
–
–
–
–
–
–
–
–
–
MODBUS communication [ch2] (Refer to MODBUS Communication Edition for details.)
[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
–
–
–
–
–
–
–
–
–
–
–
MODBUS communication [ch1, ch2] (Refer to MODBUS Communication Edition for details.)
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.
Number and
name
Operation and function
Applicable model
FX
3S
FX
3G
FX
3GC
FX
3U
FX
3UC
Correspond-
ing special
device
FX
1S
FX
1N
FX
1NC
FX
2N
FX
2NC