beautypg.com

Process images of the machine configurations – BECKHOFF BK3xx0 User Manual

Page 86

background image

Notes on the Documentation

84

Fieldbus Components

Process images of the machine configurations

As shown in the two examples in the figure below, the mapping rule in the PROFIBUS DP master interface changes,
depending on which machine extensions are used (there are two examples here):

In order to solve the problem of the changed mapping rule, a facility is provided in the BK3110, BK3120 and BK3520
Bus Couplers through which the mapping can be carried out in the Bus Coupler (multi-configuration mode), so that
they always exchange the same process image with the PROFIBUS DP master, independently of the Bus Terminals
present: