Beckhoff KL3222, Documentation

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Access from the user program
KL3222 32 Version: 2.3.0
5 Access from the user program
5.1 Process image
Complete process image
The KL3222/KS3222 is represented in the complex process image with 6 bytes of input data and 2 bytes of
output data. These are organized as follows:
Byte offset (without word
alignment) Byte offset (with word align-
ment*) Format Input data Output data
0 0 Byte
SB1 [
}
33] CB1 [
}
33]
1 2 Word DataIN1 -
3 4 Byte
SB2 [ } 33] CB2 [ } 33]
4 6 Word DataIN2 -
Compact process image
The KL3222 is represented in the compact process image with 4 bytes input data and without output data.
These are organized as follows:
Byte offset (without word
alignment) Byte offset (with word align-
ment*) Format Input data Output data
0 0 Word DataIN1 -
1 1 Word DataIN2 -
*) word alignment: The Bus Coupler sets words to even byte addresses
Key
SB1, SB2: Status bytes of channels 1 and 2
CB1, CB2: Control bytes of channels 1 and 2
DataIN1, DataIN2 input words of channels 1 and 2
DataOUT: not present