User`s manual

36
FX3U Series Programmable Controllers
User’s Manual - MODBUS Serial Communication Edition
6 Related Devices and Communication Status
6.1 Special Data Registers
M: Master S: Slave R: Read W: Write
*1. Values must be written to these Device registers using the MODBUS configuration block using
M8411. For details refer to Section 9.4.
D8419 D8439
Communication
Mode
M, S
Displays the protocol that the serial port is currently using:
0: Programming Port Protocol
1: Programming Port Modem Mode
2: Computer Link
3: N:N Network
4: RS Command
5: RS2 Command
6: Parallel Link
7: Inverter Communication Command
9: MODBUS Serial
R
D8470
D8471
MODBUS
Device
Mapping 1
S
If a MOV H**** D8470 is triggered by LD M8411 during the
MODBUS initialization, the slave device mapping can be
changed by the user.
Note: For details refer to Section 9.4.
R,W
*1
D8472
D8473
MODBUS
Device
Mapping 2
S
If a MOV H**** D8472 is triggered by LD M8411 during the
MODBUS initialization, the slave device mapping can be
changed by the user.
Note: For details refer to Section 9.4.
R,W
*1
D8474
D8475
MODBUS
Device
Mapping 3
S
If a MOV H**** D8474 is triggered by LD M8411 during the
MODBUS initialization, the slave device mapping can be
changed by the user.
Note: For details refer to Section 9.4.
R,W
*1
D8476
D8477
MODBUS
Device
Mapping 4
S
If a MOV H**** D8476 is triggered by LD M8411 during the
MODBUS initialization, the slave device mapping can be
changed by the user.
Note: For details refer to Section 9.4.
R,W
*1
D8478
D8479
MODBUS
Device
Mapping 5
S
If a MOV H**** D8478 is triggered by LD M8411 during the
MODBUS initialization, the slave device mapping can be
changed by the user.
Note: For details refer to Section 9.4.
R,W
*1
D8480
D8481
MODBUS
Device
Mapping 6
S
If a MOV H**** D8480 is triggered by LD M8411 during the
MODBUS initialization, the slave device mapping can be
changed by the user.
Note: For details refer to Section 9.4.
R,W
*1
D8482
D8483
MODBUS
Device
Mapping 7
S
If a MOV H**** D8482 is triggered by LD M8411 during the
MODBUS initialization, the slave device mapping can be
changed by the user.
Note: For details refer to Section 9.4.
R,W
*1
D8484
D8485
MODBUS
Device
Mapping 8
S
If a MOV H**** D8484 is triggered by LD M8411 during the
MODBUS initialization, the slave device mapping can be
changed by the user.
Note: For details refer to Section 9.4.
R,W
*1
Special Data
Register
Name Valid Detailed description R / W
CH1 CH2