Festo PROFIBUD-DP, Elektronics Manual

Page: 61 / 154

2. Commissioning CPV−DI02 (PROFIBUS−DP)
2−3
Festo P.BE−CPV−DI02−EN en 0704NH
2.1 Pr e p a r in g t h e C PV D i r e c t for c o mm i ss i o nin g
2.1.1 Switching on the power supply
No te
Please observe also the switching−on instructions in the
manual for your PLC.
When the controller is switched on, it will automatically carry
out a comparison between the NOMINAL and the ACTUAL
configurations. It is important for this configuration run that:
the specifications for the field bus configuration are com
plete and correct.
the power supplies for the programmable logic controller
and for the field bus slaves are switched on either simul
taneously or in the sequence indicated below.
Please note the following when switching on the power
supply:
Common supply Common power supply for the control system and all field
bus slaves via a central power unit or a central switch.
Separate supply If there is a separate supply for the control system and for the
field bus slaves, the power should be switched on in the
following sequence:
1. the operating voltage supply for all field bus slaves
2. the operating voltage supply for the controller.