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Appendix A: Special Device List
401
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
Appendix A-2 Special Data Register (D8000 to D8511)
21
Memory
Cassette
22
Battery
A
Special Devices
(M8000-,D8000-)
B
Instruction List
C
Discontinued
models
D
Precautions for
battery
transportation
E
Handling of
batteries in EU
member states
*1. Cleared when PLC switches from RUN to STOP.
*2. Supported in Ver. 1.30 or later.
*3. Supported in Ver. 2.00 or later.
Number and
name
Content of register
Correspond-
ing special
device
RS2 (FNC 87) [ch2] and Computer Link [ch2]
D 8420
RS2 (FNC 87) [ch2]
Communication format setting
-
D 8421
Computer link [ch2]
Station number setting
-
[D]8422
*1
RS2 (FNC 87) [ch2]
Remaining points of transmit data
M8422
[D]8423
*1
RS2 (FNC 87) [ch2]
Monitoring receive data points
M8423
[D]8424 Not used -
[D]8425
Communication parameter display
[ch2]
-
[D]8426 Not used -
D 8427
Computer link [ch2]
Specification of on-demand head
device register
M8426 to
M8429
D 8428
Computer link [ch2]
Specification of on-demand data
length register
D 8429
RS2 (FNC 87) [ch2], computer link
[ch2]
Time-out time setting
D 8430
RS2 (FNC 87) [ch2]
Header 1 and 2 <Default: STX>
-
D 8431
RS2 (FNC 87) [ch2]
Header 3 and 4
-
D 8432
RS2 (FNC 87) [ch2]
Terminator 1 and 2 <Default: ETX>
-
D 8433
RS2 (FNC 87) [ch2]
Terminator 3 and 4
-
[D]8434
RS2 (FNC 87) [ch2]
Receive sum (received data)
-
[D]8435
RS2 (FNC 87) [ch2]
Receive sum (calculated result)
-
[D]8436 RS2 (FNC 87) [ch2] Send sum -
[D]8437 Not used -
MODBUS communication [ch1]
D 8400
*2
Communication format -
D 8401
*2
Protocol -
D 8402
*2
Communication error code M8402
D 8403
*2
Error details M8403
D 8404
*2
Error step numbe -
[D]8405
*2
Communication format display -
[D]8406 Not used -
[D]8407
*2
Step number being executed -
[D]8408
*2
Current retry value -
D 8409
*2
Slave response timeout -
D 8410
*2
Turn around delay -
D 8411
*2
Message to message delay -
D 8412
*2
Number of retries -
[D]8413 Not used -
D 8414
*2
Slave node address -
[D]8415 to [D]8418 Not used -
[D]8419
*2
Communication mode
-
Number and
name
Content of register
Correspond-
ing special
device
MODBUS communication [ch2]
D 8420
*2
Communication format -
D 8421
*2
Protocol -
D 8422
*2
Communication error code M8422
D 8423
*2
Error details M8423
D 8424
*2
Error step numbe -
[D]8425
*2
Communication format display -
[D]8426 Not used -
[D]8427
*2
Step number being executed -
[D]8428
*2
Current retry value -
D 8429
*2
Slave response timeout -
D 8430
*2
Turn around delay -
D 8431
*2
Message to message delay -
D 8432
*2
Number of retries -
[D]8433 Not used -
D 8434
*2
Slave node address -
[D]8435 to [D]8438 Not used -
[D]8439
*2
Communication mode
-
FX3U-ENET-ADP [ch1]
[D]8400
*3
IP Address (Low-order) -
[D]8401
*3
IP Address (High-order) -
[D]8402
*3
Subnet mask (Low-order) -
[D]8403
*3
Subnet mask (High-order) -
[D]8404
*3
Default router IP Address (Low-order)
-
[D]8405
*3
Default router IP Address (High-order)
-
[D]8406
*3
Status information -
[D]8407
*3
Connection condition of the Ethernet
port
-
[D]8408
*3
FX3U-ENET-ADP version -
D 8409
*3
Communication timeout time -
D 8410
*3
Connection forcible nullification -
[D]8411
*3
Time setting functional operation
result
-
[D]8412 to [D]8414
*3
Host MAC address -
[D]8415 Not used -
[D]8416
*3
Model code -
[D]8417
*3
Error code of the Ethernet adapter -
[D]8418 Not used -
[D]8419
*3
Operation mode -