WAGO 750 Series Manual page 163

750-634
The above Incremental Encoder Interface module has 5 bytes of input data
(6 bytes in cycle duration measurement mode) and 3 bytes of output data.
The following tables illustrate the Input and Output Process Image, which
has 4 words mapped into each image. Word alignment is applied.
*
750-637
The above Incremental Encoder Interface Module has a total of 6 bytes of
user data in both the Input and Output Process Image (4 bytes of encoder
data and 2 bytes of control/status). The following table illustrates the Input
and Output Process Image, which have 4 words mapped into each image.
Word alignment is applied.
WAGO-I/O-SYSTEM 750
Linux Fieldbus Coupler
Byte Destination
Offset
High Byte
0 -
1 D1
2 -
3 D4
)
If cycle duration measurement mode is enabled in the control byte, the cycle
duration is given as a 24-bit value that is stored in D2 together with D3/D4.
Byte Destination
Offset
High Byte
0 -
1 D1
2 -
3 -
Byte Destination
Offset
High Byte
0 -
1 D1
2 -
3 D3
Process Data Architecture for MODBUS/TCP
Input Process Image
Low Byte
S
D0
)
(D2)*
D3
Output Process Image
Low Byte
C not used
D0
-
-
Input and Output Process Image
Low Byte
C0/S0 Control/Status byte of Channel 1
D0
C1/S1 Control/Status byte of Channel 2
D2
I/O Modules • 159
Remark
not used Status byte
Counter word
not used (Periodic time)
Latch word
Remark
Control byte
Counter Setting word
not used
Remark
Data Value of Channel 1
Data Value of Channel 2