Device description
Leuze electronic
DDLS 548i
18
LED
Color
State
Description
BUS
OFF
No supply voltage
Green
Flashing
• Device waiting for communication to be re-established.
• No data exchange
Green
Continuous light
• Communication with IO-Controller established
• Data exchange active
Orange
Flashing
PROFINET wave function activated
• The PWR and BUS LEDs flash in sync in orange.
Red
Flashing
• Parameterization or configuration failed
• No data exchange
Red
Continuous light
Bus error ‑ no communication established to the IO controller
OLK
---
OFF
No optical data connection
No data transmission
Causes (see chapter 8.1 "Error displays of the operating state
LEDs"):
• Optical window soiled
• Insufficient alignment
• Range exceeded
• Environmental influences (snow, rain, fog)
• Wrong F3/F4 frequency assignment of the devices
• Transmitter deactivated
• Transmitter of the second device deactivated
Green
Continuous light
• The optical link exists.
• No data is sent or received.
Orange
Continuous light/
flickering light
Data is sent and received.
ERL
---
OFF
No link error
Orange
Continuous light
• Missing link (Ethernet cable connection) on the second
device (see chapter 8.1 "Error displays of the operating
state LEDs").
• SIGNAL QUALITY indicator on the second device without
green and orange LED (see chapter 8.1 "Error displays of
the operating state LEDs").
Red
Continuous light
• No cable-connected link to the connected device (see
chapter 8.1 "Error displays of the operating state LEDs").
• SIGNAL QUALITY indicator without green and orange
LED (see chapter 8.1 "Error displays of the operating
state LEDs").
LINK
---
OFF
No cable-connected link to the connected device (see chapter
8.1 "Error displays of the operating state LEDs").
Green
Continuous light
• The link to the connected device is OK.
• No data is sent or received.
Orange
Continuous light/
flickering light
• The link to the connected device is active.
• Data is sent and received.