Process image
 | No compact process image The KL6781 cannot be operated with a compact process image (without control and status word), since the control and status words are required for meaningful process data mode operation of the terminal. The KL6781 is represented with its complex process image, even if you set your Bus Coupler to a compact process image! |
The KL6781 is represented in the process image with up to 24 bytes of input data and 24 bytes of output data.
Format | Input data | Output data |
|---|---|---|
Word | ||
Byte | DataIn0 | DataOut0 |
Byte | DataIn1 | DataOut1 |
... | ... | ... |
Byte | DataIn21 | DataOut21 |
Key
SW: Status byte
CW: Control byte
DataIN 0 to DataIN 21: 22 bytes for the input data of the M-Bus
DataOUT 0 to DataOUT 21: 22 bytes for the output data of the M-Bus
- For the meaning of the control and status word please refer to the page Control and status word.
- Please refer to the Mapping page for the assignment of the bytes and words to the addresses of the controller.