Siemens SIRIUS 3RW44 - Process Data and Process Images

PROFIBUS DP Communication Module
SIRIUS 3RW44 manual
GWA 4NEB 535 2195-02 DS 06
8-23
8.7 Process Data and Process Images
Definition of the process image
The process image is part of the system memory of the DP master. At the
beginning of the cyclical program, the signal statuses of the inputs are
transmitted to the process image of the inputs. At the end of the cyclical
program, the process image of the outputs is transmitted to the DP slave as a
signal status.
Soft starters with PROFIBUS DP have the following process image:
• Process image with 2 byte outputs / 2 byte inputs (16 O / 16 I)