Festo PROFIBUD-DP, Elektronics Manual

Page: 54 / 154

1. Installation CPV−DI02 and CPV−CS02
1−40
Festo P.BE−CPV−DI02−EN en 0704NH
1. 8 Sw it c h in g−o n r e ac ti o n of t h e C PI s y s te m
When the power supply is switched on, the CPV Direct ascer
tains automatically the current string assignment. It also as
certains which CPI/CP modules are connected to the string
extension.
If the current assignment is the same as the saved assign
ment, the CPV Direct will switch automatically to the ready−
to−operate status.
The PS/PL LEDs of the CPV Direct as well as the status LEDs
on the connected CPI/CP modules light up.
If the current assignment is not the same as the saved assign
ment, the fault LED
P
on the CPV Direct will flash. In this case
the CPI system is not ready to operate.
You then have the following possibilities of restoring the
readiness to operate:
eliminate assignment faults manually or replace individ
ual CPI modules (see section 1.9)
save the current assignment as the nominal assignment
(see section 1.7.2).
Detailed instructions on diagnosing the CPV Direct using the
LEDs can be found in section 3.1.