Filter
Top Products
850
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 -)
RS2 (FNC 87) [ch2] and Computer Link [ch2] (Refer to Data Communication Edition for details.)
D 8420 RS2 (FNC 87) [ch2] Communication format setting
3 3 3 – –––––
D 8421 Computer link [ch2] Station number setting
3 3 3 – –––––
[D]8422
*1
RS2 (FNC 87) [ch2] Remaining points of transmit
data
3 3 3 M8422–––––
[D]8423
*1
RS2 (FNC 87) [ch2] Monitoring receive data points 3 3 3 M8423–––– –
[D]8424 Not used
– – – – –––– –
[D]8425 Communication parameter display [ch2]
3 3 3 – –––––
[D]8426 Not used
– – – – –––– –
D 8427
Computer link [ch2]
Specification of on-demand head device register
3 3 3
M8426 to
M8429
–––– –
D 8428
Computer link [ch2]
Specification of on-demand data length register
3 3 3 –––––
D 8429
RS2 (FNC 87) [ch2], computer link [ch2]
Time-out time setting
3 3 3 –––––
D 8430
RS2 (FNC 87) [ch2]
Header 1 and 2 <Default: STX>
3 3 3 – –––––
D 8431 RS2 (FNC 87) [ch2] Header 3 and 4
3 3 3 – –––––
D 8432
RS2 (FNC 87) [ch2] Terminator 1 and 2
<Default: ETX>
3 3 3 – –––––
D 8433 RS2 (FNC 87) [ch2] Terminator 3 and 4
3 3 3 – –––––
[D]8434 RS2 (FNC 87) [ch2] Receive sum (received data)
3 3 3 – –––––
[D]8435
RS2 (FNC 87) [ch2]
Receive sum (calculated result)
3 3 3 – –––––
[D]8436 RS2 (FNC 87) [ch2] Send sum
3 3 3 – –––––
[D]8437 Not used
– – – – –––– –
*1. Cleared when the PLC switches from RUN to STOP.
FX3U-CF-ADP [ch1] (Refer to CF-ADP Manual for details.)
[D]8400 to [D]8401 Not used
– – – – –––– –
[D]8402
Step number of executing CF-ADP instruction
*3
–
3
*2
3
*2
– –––––
[D]8403
–
3
*2
3
*2
– –––––
[D]8404 to [D]8405 Not used
– – – – –––– –
[D]8406 CF-ADP status
–
3
*2
3
*2
– –––––
[D]8407 Not used
– – – – –––– –
[D]8408 CF-ADP version
–
3
*2
3
*2
– –––––
[D]8409 to [D]8413 Not used
– – – – –––– –
[D]8414
Error step number of M8418
*2
–
3
*2
3
*2
– –––––
[D]8415
–
3
*2
3
*2
– –––––
[D]8416 Not used
– – – – –––– –
[D]8417
Error code in detail for CF-ADP instructions
*3*4
–
3
*2
3
*2
– –––––
[D]8418
Error code for CF-ADP instructions
*3*4
–
3
*2
3
*2
– –––––
[D]8419 Operation mode display
–
3
*2
3
*2
– –––––
*2. Available in Ver. 2.61 or later.
*3. Cleared when the PLC switches from STOP to RUN.
*4. For details on the error code is stored in special data register, refer to the CF-ADP Manual.
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