Example Of A Process Input Image - WAGO -I/O-SYSTEM 750 User's Installation And Configuration

24 • Fieldbus coupler 750-342
Data exchange
3.1.4.1

Example of a process input image

The following figure is an example of a process input image.
The configuration comprises of 16 digital and 8 analog inputs.
The process image thus has a data length of 8 words for the analog and 1 word
for the digital inputs, i.e. 9 words in total.
0x0000
0x0001
0x0002
0x0003
0x0004
0x0005
0x0006
0x0007
0x0008
Fig. 3-7: Example of a process input image
Ethernet
ON
LINK
TxD/RxD
ERROR
I/O
Input modules 750- 402
Process input image
(Word)
MODBUS addresses
Word1
Word2 Word2
Word1
Word2
Word1
Word2
Word1
Word2
Highbyte Lowbyte
Process input image
(Bit)
MODBUS addresses
0x0000
0x0001
0x0002
0x0003
0x0004 0x0004
0x0005 0x0005
0x0006 0x0006
0x0007 0x0007
0x0008
0x0009
0x000A
0x000B
0x000C
0x000D
0x000E
0x000F
DI
DI AI AI DI
402 472 472
Bit 1 1
Word1 Word1
Bit 4 4 Word2 Word2 4
AI DI
AI
402 476 402 476
1 1 1 1
Word1 Word1
Word2 4 Word2
DI: Digital Input
AI:Analog Input
Modular I/O System
ETHERNET TCP/IP
G012914e