Led Indicators Interbus 500Kbit/S / Rs 422 - Leuze electronic DDLS 200 Technical Description

INTERBUS 500kbit/s / RS 422
Device configuration RS 422
General RS 422 protocols can be transmitted with the DDLS 200. No baud rate setting is necessary
(max. 500kbit/s). The shielding connection can be set via switch S4 as with the Interbus.
Note!
The latency of a light path is about 1.5 µs (depending on the distance).
6.3

LED indicators INTERBUS 500kbit/s / RS 422

In addition to the indicator and operating elements present in all device models (bar graph, buttons,
LEDs AUT, MAN, ADJ; see chapter 11.1 "Indicator and operating elements"), the INTERBUS model
includes the following additional indicators:
PWR Tx Rx
Figure 6.4:Indicator/operating elements for the INTERBUS model
28
LED PWR: green
green flashing = transmitter /receiver unit switched off
AUT
MAN
ADJ
off
LED Tx: green
green flashing = with baud rates set to very low values,
off
LED Rx: green
green flashing = with baud rates set to very low values,
off
DDLS 200
= operating indicator
via switching input IN or hardware error
= no operating voltage
= data are being transmitted to the bus
the LEDs Tx and Rx flicker. At very
high baud rates (> 50kbit/s), flashing
LEDs Tx and Rx indicate faulty bus
communication.
= no data on the transmission line
= data are being received by the bus
the LEDs Tx and Rx flicker. At very
high baud rates (> 50kbit/s), flashing
LEDs Tx and Rx indicate faulty bus
communication.
= no data on the reception line
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