Led Indicators Interbus 500Kbit/S / Rs 422 - Leuze electronic DDLS 200 Series Original Operating Instructions

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 delay time of a light path is approx. 1.5 µs (depending on the distance).
6.3

LED indicators INTERBUS 500kBit/s / RS 422

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 INTERBUS model
also has the following indicators:
PWR Tx Rx
Figure 6.4: Indicators and operational controls of the INTERBUS model
Leuze electronic
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
INTERBUS 500kBit/s / RS 422
= operation indicator
via switching input IN or hardware error
= no operating voltage
= data is 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 is 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 receiving line
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