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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
Interrupt Program (Refer to Chapter 36 for details.)
D 8393
Delay time
→Refer to Section 36.4.
– – – M8393 – – – – –
[D]8394 Not used – – – – – – –––––
[D]8395
Symbolic
Information,
Block password
status
Symbolic information storage status and
execution program protection status using the
block password.
– – –
*2
*2
– –––––
[D]8396 Built-in CC-Link/LT setup information – – – –
*3
– –––––
[D]8397 Not used – – – – – – –––––
Ring Counter
D 8398 Lower
Up-operation ring counter of 0 to
2,147,483,647 (in 1-ms units, 32-bit)
*4
M8398 – – – – –
D 8399 Upper
*1. "**" indicates areas used by the system.
*2. Available in Ver. 3.00 or later.
*3. Only the FX
3UC-32MT-LT-2 is applicable.
*4. 1ms ring counter (D8399, D8398) will operate after M8398 turns ON.
RS2 (FNC 87) [ch1] (Refer to Data Communication Edition for details.)
D 8400
RS2 (FNC 87) [ch1] Communication format
setting
– –––––
[D]8401 Not used – – – – – – –––––
[D]8402
*5
RS2 (FNC 87) [ch1] Remaining points of
transmit
data
M8402 – – – – –
[D]8403
*5
RS2 (FNC 87) [ch1] Monitoring receive data
points
M8403 – – – – –
[D]8404 Not used
– – – – – – –––––
[D]8405 Communication parameter display [ch1]
– –––––
[D]8406 to [D]8408 Not used
– – – – – – –––––
D 8409 RS2 (FNC 87) [ch1] Time-out time setting
– –––––
D 8410
RS2 (FNC 87) [ch1] Header 1 and 2
<Default: STX>
– –––––
D 8411 RS2 (FNC 87) [ch1] Header 3 and 4 – –––––
D 8412
RS2 (FNC 87) [ch1] Terminator 1 and 2
<Default: ETX>
– –––––
D 8413 RS2 (FNC 87) [ch1] Terminator 3 and 4 – –––––
[D]8414
RS2 (FNC 87) [ch1] Receive sum (received
data)
– –––––
[D]8415
RS2 (FNC 87) [ch1] Receive sum
(calculated result)
– –––––
[D]8416 RS2 (FNC 87) [ch1] Send sum – –––––
[D]8417 to [D]8418 Not used – – – – – – –––––
[D]8419 Operation mode display [ch1] – –––––
*5. Cleared when the PLC switches from RUN to STOP.
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
Present
value
Symbolic
information
storage
Protection of
execution
program
H**00
*1
None None
H**01
*1
None Provided
H**10
*1
Provided None
H**11
*1
Provided Provided