Process image

Complex process image

In the complex process image the KL2532/KL2552 is represented with at least 6 bytes of input data and 6 bytes of output data. These are organized as follows:

Byte offset (without word alignment)

Byte offset (with word alignment*)

Format

Input data

Output data

0

0

Byte

SB1

CB1

1

2

Word

DataIN1

DataOUT1

3

4

Byte

SB2

CB2

4

6

Word

DataIN2

DataOUT2

*) Word alignment: The Bus Coupler places values on even byte addresses

Legend

SB n: status byte channel n
CB n: Control byte of channel n
DataIN n: Input word of channel n
DataOUT n: Output word of channel n

Process image 1:

Complex process image

The KL2532/KL2552 cannot be operated without control bytes, since the control bytes are required for enabling the channels. Even if your Bus Coupler is set to compact process image, the KL2532/KL2552 is represented with its control bytes!