WAGO 750 Series Manual page 150

144 • Process Data Architecture for MODBUS/TCP
Specialty Modules
SSI Transmitter Interface Modules
750-630, (and all variations)
The above SSI Transmitter Interface modules have a total of 4 bytes of user
data in the Input Process Image, which has 2 words mapped into the image.
Word alignment is applied.
Incremental Encoder Interface Modules
750-631
The above Incremental Encoder Interface modules have 5 bytes of input data
and 3 bytes of output data. The following tables illustrate the Input and Output
Process Image, which have 4 words into each image. Word alignment is
applied.
Byte Destination
Offset
High Byte
0 D1
1 D3
Byte Destination
Offset
High Byte
0 -
1 D1
2 -
3 D4
Byte Destination
Offset
High Byte
0 -
1 D1
2 -
3 -
Input Process Image
Low Byte
D0
D2
Input Process Image
Low Byte
S not used
D0
-
D3
Output Process Image
Low Byte
C not used
D0 Counter Setting word
-
-
Remark
Data bytes
Remark
Status byte
Counter word
not used
Latch word
Remark
Control byte
not used
not used
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP