120 •
I/O
Modules
WAGO-I/O-SYSTEM
750
DeviceNet
Output Process Image
Instance
Byte Destination
Remark
C Control
byte
D0
D1
Counter Setting word
-
-
n
-
not used
And the specialty modules represent 1x6 bytes output data and seize 1 In-
stance in Class (0x68).
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 6
bytes mapped into each image.
Input Process Image
Instance
Byte Destination
Remark
S Status
byte
D0
D1
Counter word
(D2)*
)
(Periodic
time)
D3
n
D4
Latch word
*
)
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.
The specialty modules represent 1x6 bytes input data and seize 1 Instance in
Class (0x67).
Output Process Image
Instance
Byte Destination
Remark
C Control
byte
D0
D1
Counter Setting word
-
-
n
-
not used
And the specialty modules represent 1x6 bytes output data and seize 1 In-
stance in Class (0x68).