Process image

The process image of the AS-i master terminal always consists of a 6-byte parameter data block and a 0-, 6-, 16- or 30-byte process data block. The result is a 6-, 12-, 22-, or 38-byte process image. The size of the process image can be set via the KS2000 configuration software, or fieldbus-specific via the Bus Coupler.
If the KL6201/KL6211 is used in conjunction with Bus Couplers or Bus Terminal Controllers for PROFIBUS and CANopen, there are certain special characteristics which are described in chapters KL6201/KL6211 with PROFIBUS couplers and KL6201/KL6211 with CANopen coupler.

Description of the process images

Dummy nibbles Unused AS-i slave addresses are stored as a dummy nibble on the output side of the process image and are not evaluated. The associated entries in the input data are zeroed.