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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
37 Operation of Special Devices (M8000 -, D8000 -)
37.1 Special Device List (M8000 -, D8000 -)
31
FNC277-FNC279
Data
Transfer 3
32
FNC280-FNC289
High-Speed
Processing 2
33
FNC290-FNC299
Extension File
Register Control
34
FNC300-FNC305
FX
3U
-CF-ADP
35
SFC•STL
Programming
36
Interrupt
Function
37
Special Device
38
Error Code
A
Version Up
Information
B
Execution Times
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