Fig. 36 Output Data In The Bus Coupler; Fig. 37 Input Data In The Bus Coupler - Beckhoff BK3 0 Series Documentation

PROFIBUS DP communication
Default assignment of the inputs and outputs to the process image
Once it has been switched on, the Bus Coupler finds out how many Bus Terminals are inserted, and creates
an assignment list. The analog and digital channels, divided into inputs and outputs, are assembled into
separate parts of this list. The assignment starts on the left next to the Bus Coupler. The software in the Bus
Coupler collects consecutively the individual entries for each of the channels in order to create the
assignment list counting from left to right. Four groups are distinguished in the assignment:
Group
1
2
3
4
All complex Bus Terminals are represented by analog inputs or outputs.
Overview of the distribution of the process image within the Bus Coupler
Output data in the Bus Coupler
Fig. 36: Output data in the Bus Coupler
Input data in the Bus Coupler
Fig. 37: Input data in the Bus Coupler
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Functional type of the channel
analog outputs
digital outputs
analog inputs
digital inputs
Version: 4.3.0
Assignment
byte-wise
bit-wise
byte-wise
bit-wise
BK3xx0