Diagnosis With The Leds Of The Bus Coupler; Diagnosis - Aventics PROFIBUS DP Instrucciones De Servicio

82 AVENTICS | PROFIBUS DP | R402003657–BAL–001–AG
Commissioning and operation
UL/DIA
UQ1
UQ2
RUN/BF
Calling up the diagnosis
7.3.1

Diagnosis with the LEDs of the bus coupler

The four LEDs on the bus coupler show messages according to
Table 11
O
Regularly check the diagnostic indications before
commissioning and during operation.
Table 11: Meaning of the diagnostic LEDs
LED Signal Description
UL/ Green Electronics supply available
DIA
Red Valve or sensor supply overload (group diagnosis)
Off No electronics supply available
U Green Valve supply U
Q1
Red Low voltage (12 V < U
Off Valve supply U
U Green Valve supply U
Q2
Red Low voltage (12 V < U
Off Valve supply U
RUN/ Green The bus coupler is in "data exchange mode", i.e. the
BF slave is corrrectly setup and communicates with the
master in cycles (RUN).
Red Bus error, the bus coupler tries to connect, i.e. the
slave is searching for the master. Possible causes:
Bus cable is not attached
Master has been switched off
1)
This display appears only as long as the overloaded output is activated.
7.3.2

Diagnosis

O
To use the diagnosis in IndraWorks, click on the menu option
Ansicht, Diagnose (View, Diagnosis).
In addition to the Profibus standard diagnosis, the BDC-B-DP_32
module also sends a 7-byte user diagnosis.
The length of the data field is transferred in byte 1 (= 7) and the
user-specific diagnosis is transferred in byte 2. The meaning of
the bits is shown in Table 8. Bits 5-7 must have a value of 0.
ok
Q1
< 21.6 V/20.4 V)
Q1
< 12 V
Q1
ok
Q2
< 21.6 V/20.4 V)
Q2
< 12 V
Q2
1)