User`s manual

82
FX3U Series Programmable Controllers
User’s Manual - MODBUS Serial Communication Edition
8 Master Specification
8.3 ADPRW Command Parameters
8H
Diagnosis
Sub-function: 10H
Return NAK Counter
0 (fixed)
PLC Destination Device (head address)
Applicable
Devices
D
• R • indexing
Block Length 1 Point
Sub-function: 11H
Return Slave Busy
Counter
0 (fixed)
PLC Destination Device (head address)
Applicable
Devices
D
• R • indexing
Block Length 1 Point
Sub-function: 12H
Return Character
Overrun Counter
0 (fixed)
PLC Destination Device (head address)
Applicable
Devices
D
• R • indexing
Block Length 1 Point
BH
Get Comm.
Event Counter
0 (fixed) 0 (fixed)
PLC Destination Device (head address)
: Programming State
+1: Event Counter
Applicable
Devices
D
• R • indexing
Block Length 2 Point
CH
Get Comm.
Event Log
0 (fixed) 0 (fixed)
PLC Destination Device (head address)
: Programming State
+1: Event Counter
+2: Bus Message Counter
+3: Log Length
+4~35: Up to 64 Bytes Event Log
(2 log bytes/word)
Applicable
Devices
D
• R • indexing
Block Length 4~36 Point
FH
Write Multiple
Coils
MODBUS Address:
0000H~FFFFH
Device Count:
1~1968
PLC Source Device (head address)
Applicable
Devices
D
• R • K • H • M • X •
Y
• S • indexing
Block Length
(+ 15)
÷16
10H
Write Multiple
Registers
MODBUS Address:
0000H~FFFFH
Device Count:1~123
PLC Source Device (head address)
Applicable
Devices
D
• R • K • H •
indexing
Block Length
11H
Report Slave ID
0 (fixed) 0 (fixed)
PLC Destination Device (head address)
: Slave ID
+1: RUN/STOP State
+2: Additional Data Byte Count
+3~127: Up to 249 Bytes
Additional Data (Vendor Specified)
Applicable
Devices
D
• R • indexing
Block Length 3~128 Point
:
Command
Code
:
Device Address/
Sub-command Code
:
Device Count/Sub-command
Data/AND Mask
/ :Source Data /
Destination PLC Device/OR Mask
Applicable Devices: D • R • indexing • K • H
S 1
S 2 S 3
S 4 D
D
D
D
D
D
D
D
S 3
S 3
D
D
D
D