Leuze electronic DDLS 200 Series - LED Indicators

DeviceNet / CANopen
44 DDLS 200 Leuze electronic
9.5 DeviceNet/CANopen LED indicators
In addition to the indicators and operational controls present in all device models (bar graph, buttons,
LEDs AUT, MAN, ADJ; see chapter 11.1 "Indicators and operational controls"), the
DeviceNet/CANopen model also has the following indicators:
Figure 9.10: Indicators and operational controls of the DeviceNet/CANopen model
PWR Tx Rx
AUT
MAN
ADJ
BUF ERPA BOFF
LED PWR: green = operation indicator
green flashing = transmitter / receiver unit switched off
via switching input IN or hardware error
off = no operating voltage
LED Tx: green = data is being transmitted to the bus
green flashing = with baud rates set to very low values,
or with low bus traffic, the LEDs Tx and
Rx flicker.
off = no data is being transmitted to the bus
LED Rx: green = data is being received by the bus
green flashing = with baud rates set to very low values,
or with low bus traffic, the LEDs Tx and
Rx flicker.
off = no data on the receiving line
LED BUF: yellow = buffer load: > 70%
yellow flashing = buffer load: 30 … 70%
off = buffer load: < 30%
LED ERPA: yellow = DDLS 200 is in "Error Passive" state,
full communication functionality, how-
ever, in the event of an error, a passive
error flag is sent (see also "BOSCH
CAN Specification 2.0").
Measures:
- check termination, wiring, baud rate
off = DDLS 200 is in "Error Active" state, full
communication functionality, however,
in the event of an error, an active error
flag is sent, normal state
LED BOFF: yellow = DDLS 200 in "BusOff" state,
does not
reattempt to participate in bus
traffic  manual intervention necessary
Measures:
- check termination, wiring, baud rate
- power OFF/ON of the device supply or
bus supply
DDLS200_E.book Seite 44 Mittwoch, 19. Februar 2020 12:22 12