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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
37 Operation of Special Devices (M8000 -, D8000 -)
37.1 Special Device List (M8000 -, D8000 -)
31
FNC275-FNC279
Data
Transfer 3
32
FNC280-FNC289
High Speed
Processing 2
33
FNC290-FNC299
Extension File
Register
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 35.4.
– 3 3 M8393–––– –
[D]8394
Not used
– – – – –––– –
[D]8395
– – – – –––– –
[D]8396 Built-in CC-Link/LT setup information
– –
3
*1
– –––––
[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)
*2
3 3 3 M8398–––––
D 8399 Upper
*1. Only the FX3UC-32MT-LT-2 is applicable.
*2. 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
3 3 3 – –––––
[D]8401 Not used
– – – – –––– –
[D]8402
*3
RS2 (FNC 87) [ch1] Remaining points of transmit
data
3 3 3 M8402–––––
[D]8403
*3
RS2 (FNC 87) [ch1] Monitoring receive data points 3 3 3 M8403–––– –
[D]8404 Not used
– – – – –––– –
[D]8405 Communication parameter display [ch1]
3 3 3 – –––––
[D]8406
Not used
– – – – –––– –
[D]8407
– – – – –––– –
[D]8408
– – – – –––– –
D 8409 RS2 (FNC 87) [ch1] Time-out time setting
3 3 3 – –––––
D 8410 RS2 (FNC 87) [ch1] Header 1 and 2 <Default: STX>
3 3 3 – –––––
D 8411 RS2 (FNC 87) [ch1] Header 3 and 4
3 3 3 – –––––
D 8412
RS2 (FNC 87) [ch1] Terminator 1 and 2
<Default: ETX>
3 3 3 – –––––
D 8413 RS2 (FNC 87) [ch1] Terminator 3 and 4
3 3 3 – –––––
[D]8414 RS2 (FNC 87) [ch1] Receive sum (received data)
3 3 3 – –––––
[D]8415 RS2 (FNC 87) [ch1] Receive sum (calculated result)
3 3 3 – –––––
[D]8416 RS2 (FNC 87) [ch1] Send sum
3 3 3 – –––––
[D]8417
Not used
– – – – –––– –
[D]8418
– – – – –––– –
[D]8419 Operation mode display [ch1]
3 3 3 – –––––
*3. Cleared when the PLC switches from RUN to STOP.
Number and name Content of register
Applicable model
FX
3G
FX
3U
FX
3UC
Correspond-
ing special
device
FX
1S
FX
1N
FX
2N
FX
1NC
FX
2NC