Example Of A Process Input Image - WAGO 750 Series Manual

46 • 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.
Prozessabbild der Eingänge
Fig. 3.1-7: Example of a process input image
Ethernet
ON
LINK
TxD/RxD
ERROR
I/O
Eingangsklemmen 750- 400
Bit 2
(Word)
MODBUS-Adressen
Word1
0x0000
Word2 Word2
0x0001
Word1
0x0002
Word2 Word2
0x0003
0x0004 Word1
0x0005 Word2
0x0006
Word1
0x0007 Word2
0x0008
Highbyte Lowbyte
Prozessabbild der Eingänge
(Bit)
MODBUS-
Adressen
0x0000
0x0001
0x0002
0x0003
0x0004
0x0005
0x0006
0x0007
0x0008
0x0009
DI DI
AI AI DI
400 467 467 400
Bit 1 1 1 1
Word1 Word1 Word1
Word2 Word2 Word2
2 2 2
DI
AI DI AI
467 400 400 467
1 1 1 1
Word1
Word2
2 2 2 2
DI: Digitale Eingangsklemme
AI: Analoge Eingangsklemme
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
G012914e