Initializing The Bus Coupler; Test And Diagnosis; Led Diagnosis - Aventics DDL Mode D'emploi

AVENTICS | DDL, CL03/CL03-XL | R402003658–BDL–001–AE
SENSOR
U BYTE 1
U BYTE 2
U BYTE 3
U BYTE 4
DD L
7.2

Initializing the bus coupler

O
Switch on the operating voltage.
The DDL system initializes itself as soon as the bus coupler
and the connected VS are provided with voltage from the
superior bus coupler.
The red DDL LED is illuminated during the configuration.
The red LED goes out after a successful initialization. The
bus coupler is now ready for operation.
7.3

Test and diagnosis

Two types of diagnosis are available if the bus coupler has been
connected correctly:
W

LED diagnosis

W
Software diagnosis (monitoring of the connected VS by the
controller software)
7.3.1 LED diagnosis
The LEDs on the housing of the bus coupler show the diagnostic
messages from Tab. 15.
Check the diagnostic indications of the bus coupler before
commissioning and regularly during operation.
Table 15: Meaning of the diagnostic LEDs on the bus coupler
LED Signal
SENSOR Illuminated green
Flashes green
Off
U BYTE 1 - Illuminated green
U BYTE 4
Flashes green
DDL Illuminated red
Commissioning and Operation
Description
Voltage within tolerance
Voltage outside of tolerance
No sensor voltage
Voltage within tolerance
Voltage outside of tolerance
No DDL communication
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