Beckhoff KL6581, Documentation, Page: 10 / 41

Product overview
KL6581 and KL6583 10 Version: 2.0.0
2.3 KL6581-0000 - Diagnostic LEDs
The LEDs indicate the operating state of the KL6581-0000.
Fig. 2: KL6581-0000 - Diagnostic LEDs
Meaning of the LED displays
LED Color State and significance
On off flashes briefly flashes at 1-sec-
ond intervals
K-Bus
Run green Lit, either weakly or strongly:
K-bus communication is OK No K-bus
communication K-bus communication -
Error red Fault occurred: see status
bytes SB.1 to SB.6 for error
description No error - -
Send green Communication with the
KL6583 works properly when
the Send and Receive LEDs
light up continuously. - Data are being sent
to a KL6583. If the Send and
Receive LEDs
flash at 1-second
intervals, the
communication
with the KL6583 is
faulty.
Receive green - Data are being
received from a
KL6583.
Wiring check via LEDs
The wiring between the KL6581-0000 and the KL6583 devices is OK when
• the Receive and Send LEDs of the KL6581-0000 light up continuously, and
• LED 3 lights up continuously on all connected KL6583 devices.