DS1100
2
2.6.1 Point-to-Point
In this layout data is transmitted to the Host on the RS232 Auxiliary serial interface.
The Local Echo communication mode must be enabled (default) See the WinHost
Help On Line.
When On-Line Operating mode is used, the scanner is activated by an External
Trigger (photoelectric sensor) when the object enters its reading zone.
RS232 Auxiliary Serial Interface
External Trigger (for On-Line mode)
Figure 17 – Point-to-Point Layout
2.6.2 RS485
Master/Slave
The RS485 Master/Slave connection is used to collect data from several scanners to
build a multi-point or a multi-sided reading system; there can be one master and up
to 5 slaves connected together.
The Slave scanners are connected together using the RS485 half-duplex main serial
interface. Every slave scanner must have a multidrop address in the range 0-4.
The master scanner is also connected to the Host on the RS232 auxiliary serial
interface.
The External Trigger signal is unique to the system; there is a single reading phase
and a single message from the master scanner to the Host computer.
It is necessary to bring the External Trigger signal to all the scanners.
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