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3. Diagnosis
Diagnostic
Meaning
bit
CP
– CP system not yet ready (during starting phase)
– Configuration fault:
string LEDs flash / have flashed;
SAVE key has been pressed; new saved configuration larger or smaller than the
current address assignment in the field bus master
– Common message:
connection to a CP module is interrupted
V
– Load voltage drop (pin 2) at CP connection;
val
at least 10 V are required in the CP node
V
– Lower limit of voltage tolerance (< 20,4 V) for CP valves (pin 2) exceeded
tol
V
– Common message:
sen
short circuit in sensor voltage supply
V
– Common message:
off
failure of load voltage supply at output modules
SC/O
– Common message:
short circuit/overload at output modules
Fig. 3/4: Diagnostic information – example 07KR91
3-12
Example 1: Central processing unit 07KR91
Festo P.BE-CP-FB5-E-EN en 0112a
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