Mitsubishi Electronics FX3G User Manual
859
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
MODBUS communication [ch2] (Refer to MODBUS Communication Edition for details.)
D 8420
Communication format
–
*1
*2
*2
–
–
–
–
–
–
D 8421
Protocol
–
*1
*2
*2
–
–
–
–
–
–
D 8422
Communication error code
–
*1
*2
*2
M8422
–
–
–
–
–
D 8423
Error details
–
*1
*2
*2
M8423
–
–
–
–
–
D 8424
Error step number
–
*1
*2
*2
–
–
–
–
–
–
[D]8425
Communication format display
–
*1
*2
*2
–
–
–
–
–
–
D 8426
ASCII input delimiter
–
–
–
*2
*2
–
–
–
–
–
–
[D]8427
Step number being executed
–
*1
*2
*2
–
–
–
–
–
–
[D]8428
Current retry value
–
*1
*2
*2
–
–
–
–
–
–
D 8429
Slave response timeout
–
*1
*2
*2
–
–
–
–
–
–
D 8430
Turn around delay
–
*1
*2
*2
–
–
–
–
–
–
D 8431
Message to message delay
–
*1
*2
*2
–
–
–
–
–
–
D 8432
Number of retries
–
*1
*2
*2
–
–
–
–
–
–
D 8434
Slave node address
–
*1
*2
*2
–
–
–
–
–
–
D 8435
Communication status information setup
–
–
–
*2
*2
–
–
–
–
–
–
D 8436
Communication status device range setup
–
–
–
*2
*2
–
–
–
–
–
–
[D]8439
Communication mode
–
*1
*2
*2
–
–
–
–
–
–
*1.
Available in Ver. 1.30 or later.
*2.
Available in Ver. 2.40 or later.
MODBUS communication [ch1, ch2] (Refer to MODBUS Communication Edition for details.)
D 8470
Lower
MODBUS device mapping 1
–
–
–
*3
*3
–
–
–
–
–
–
D 8471
Upper
–
–
–
–
–
–
D 8472
Lower
MODBUS device mapping 2
–
–
–
*3
*3
–
–
–
–
–
–
D 8473
Upper
–
–
–
–
–
–
D 8474
Lower
MODBUS device mapping 3
–
–
–
*3
*3
–
–
–
–
–
–
D 8475
Upper
–
–
–
–
–
–
D 8476
Lower
MODBUS device mapping 4
–
–
–
*3
*3
–
–
–
–
–
–
D 8477
Upper
–
–
–
–
–
–
D 8478
Lower
MODBUS device mapping 5
–
–
–
*3
*3
–
–
–
–
–
–
D 8479
Upper
–
–
–
–
–
–
D 8480
Lower
MODBUS device mapping 6
–
–
–
*3
*3
–
–
–
–
–
–
D 8481
Upper
–
–
–
–
–
–
D 8482
Lower
MODBUS device mapping 7
–
–
–
*3
*3
–
–
–
–
–
–
D 8483
Upper
–
–
–
–
–
–
D 8484
Lower
MODBUS device mapping 8
–
–
–
*3
*3
–
–
–
–
–
–
D 8485
Upper
–
–
–
–
–
–
*3.
Available in Ver. 2.40 or later.
Number and
name
Content of register
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