Wago 750-333 PROFIBUS DP/V1 FIELD BUSCOUPLER 12 MBaud 750-333 Datenbogen

Fieldbus coupler / controller •  127

2001-02-27

The 'I/O' LED indicates the node operation and signals the occurrence of a
fault.

green

*

Data cycle on the internal bus

off

*

No data cycle on the internal bus

red

on

Bus controller is in bootstrap mode or hardware defect on the controller
systems

red
blinks

*

During start up: internal bus being initialised
During operation: general internal bus fault

red
blinks

*

Fault message during internal bus reset and internal fault

orange

*

FLASH access to bus device firmware

* Not relevant

The controller starts up after switching on the supply voltage. The "I/O" LED
blinks. The "I/O" LED has a steady light following a fault free run-up.
In the case of a fault the "I/O" LED continues blinking. The fault is cyclically
displayed by the blink code.

“I/O”-LED an

Versorgungsspannung

einschalten

Koppler-Hochlauf

“I/O”-LED blinkt

Feldbusstart

Ja

Fehler

Nein

“I/O”-LED

1. Blinksequenz

(leitet opt. Anzeige eines Fehlers ein)

1. Pause

“I/O”-LED

2. Blinksequenz

(Anzahl Blinkimpulse)

2. Pause

“I/O”-LED

3. Blinksequenz

(Anz. Blinkimp.)

Fig. 3-23: Signalling the LED node status

g012111d

After overcoming a fault restart the controller by switching off the supply volt-
age and then on again.