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Ethernet Communication Module IFD9506
3 MODBUS Communication
3.1 Modbus Function Codes Supported
Function code
0x01
0x02
0x03
0x04
0x05
0x06
0x0F
0x10
0x17
3.2 Registers in IFD9506 and Modbus Addresses
Type
Name
RX
Digital input
BR
Basic register
Monitor bit
MB
register
Monitor word
MW
register
3.3 Table of Basic Registers (BR)
BR
Attribute
Register name
No.
0
R
Model name
Firmware
1
R
version
2~3
Communication
4
R/W
format
5
R/W
Baud rate
6
R/W
Address
7~10
Communication
11
R/W
time-out
Communication
12
R/W
delay time
TCP connection
13
R/W
idle time
14~32
Returning to
33
R/W
default setting
12
Read Coils
Read Discrete Inputs
Read Holding Registers
Read Input Registers
Write a single Coil
Write a single Register
Write multiple Coils
Write multiple registers
Read/Write multiple registers
MODBUS address
(Hex)
0x0400~0x0402
Holding Register
0x0000~0x003F
0x2000~0x21FF
0x2200~0x23FF
Ethernet Communication Module: IFD9506
Set by the system; read only. The model code of
IFD9506 = 0x0200
The current firmware version, displayed in hex,
e.g. V1.2 → 0x0102
Please refer to the table of communication format
setting.
Please refer to the table of baud rate setting.
For setting the station address
For setting the communication time-out time in
Modbus mode
(Unit: ms)
For setting the minimum interval time between data
communication.
For setting idle time for TCP communication
(Unit: second)
Explanation
Function code
Discrete Input
0x02
0x03, 0x06, 0x10, 0x17
0x03, 0x06
0x03, 0x06
Explanation
Reserved
Reserved
Reserved
Number
3
64
512
512
Default
Latched
0x0200
O
O
X
X
X
5000
O
0
O
30
O
0
X
DVP-PLC Operation Manual
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