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Tab. 8.4:
BUS LED displays - Causes and measures
LED
Color
BUS
BUS
Red
BUS
Red
Tab. 8.5:
OLK LED displays - Causes and measures
LED
Color
OLK
---
Leuze electronic
State
possible causes
OFF
No supply voltage connected to
the device
Device not yet recognized by the
PROFINET
Hardware error
Flashing
Incorrect wiring
• Communication error:
Configuration failed
• IO Error: no data exchange
Communication error on the
PROFINET:
No communication established
to the IO controller ("no data ex-
change")
Protocol not released
Wrong device name set
Incorrect configuration
Different protocol settings
Continu-
Bus error/communication error:
ous light
No communication established
to the IO controller ("no data ex-
change")
State
possible causes
OFF
No optical data connection:
• Optical window soiled
• Insufficient alignment
• Range exceeded
• Environmental influences (snow,
rain, fog)
• Wrong frequency assignment of
the devices
• Transmitter deactivated
• Transmitter of the second device
deactivated
Measures
• Check supply voltage
• Check device name, check link LED
• Contact Leuze electronic customer
service (see chapter 11 "Service and
support").
• Check wiring
• Check configuration, in particular with
respect to address assignment (device
names/IP address/MAC ID)
• Carry out a reset on the control
• Check protocol settings
• Check configuration, in particular with
respect to address assignment (device
names/IP address/MAC ID)
• Activate TCP/ IP or UDP
• Check configuration, in particular with
respect to address assignment (device
names/IP address/MAC ID)
• Check configuration, in particular with
respect to address assignment (device
names/IP address/MAC ID)
• Check protocol settings
• Check protocol settings
• Check configuration, in particular with
respect to address assignment (device
names/IP address/MAC ID)
DDLS 548i
Diagnostics and troubleshooting
Measures
• Clean optical window
• Eliminate the possibility of envi-
ronmental influences such as
snow, rain, fog.
• Check alignment of the devices
(see chapter 6.2 "Fine adjust-
ment").
• Check F3/F4 frequency assign-
ment of the devices.
• End deactivation of the transmit-
ters.
57
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