Festo CPX-FB13 - B.1 Operation with the General DP Master

B. General DP master
B−3
Festo P.BE−CPX−FB13−EN en 0811c
B.1 Operation with the general DP master
The Festo CPX terminal can be controlled from any PLC, PC or
industrial PC with a PROFIBUS−DP module in accordance with
EN 50170.
Further information Read the information on the following themes in the
appropriate sections:
 GSD: section 2.1.3
 Module consistency, F R EEZ E and SYNC, identifiers:
section 2.1.1
 Status bits: section 3.3
B.1.1 Bus start
In order to commission the CPX terminal correctly, the DP
master must carry out the following functions in the sequence
specified:
1. Request diagnosis.
2. Send parameterisation data (Set_Prm)
For the start parameterisation, the parameter set will be
loaded into the field bus node by the master. The node
distributes the parameters amongst the modules.
3. Check configuration
data (Chk_Cfg).
4. Transfer input and output data (cyclic data exchange,
Data_Exchange).
5. Read diagnostic information (Slave_Diag).
The composition and contents of the individual telegrams are
described in the following sections.