Technical data

Fieldbus Controller 750-841 • 57
Process Image
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
Counter Modules:
750-404, /000-000, /000-001, /000-002, /000-003, /000-004
The above 750-404 Counter Modules have a total of 5 bytes of user data in
both the Input and Output Process Image (4 bytes of counter data and 1 byte
of control/status). The counter value is supplied as 32 bits. The following
tables illustrate the Input and Output Process Image, which has 3 words
mapped into each image. Word alignment is applied.
Input Process Image
Byte Destination
Offset
High Byte Low Byte
Remark
0 - S Status byte
1D1 D0
2D3 D2
Counter Value
Output Process Image
Byte Destination
Offset
High Byte Low Byte
Remark
0 - C Control byte
1D1 D0
2D3 D2
Counter Setting Value
750-404/000-005
The above 750-404 counter modules have a total of 5 bytes of user data in both
the Input and Output Process Image (4 bytes of counter data and 1 byte of
control/status). The two counter values are supplied as 16 bits. The following
tables illustrate the Input and Output Process Image, which has 3 words
mapped into each image. Word alignment is applied.
Input Process Image
Byte Destination
Offset
High Byte Low Byte
Remark
0 - S Status byte
1 D1 D0 Counter Value of Counter 1
2 D3 D2 Counter Value of Counter 2
Output Process Image
Byte Destination
Offset
High Byte Low Byte
Remark
0 - C Control byte
1 D1 D0 Counter Setting Value of Counter 1
2 D3 D2 Counter Setting Value of Counter 2