Pass Through; Rs485 Master/Slave - Datalogic DS6100 Installation Manual

DATALOGIC
When On-Line Operating mode is used, the scanner is activated by an
External Trigger (photoelectric sensor) when the object enters its reading
zone.

2.8.2 Pass Through

Pass Through mode allows two or more devices to be connected to a single
external serial interface. The DS6100 transmits the messages received by its
auxiliary interface (RS232 only) onto its main interface.
In this configuration a series of scanners can be connected together using
RS232 on
interface and all messages
will be passed through this
chain to the host. The
reading phase
scanner is independent
from the others in a Pass
Through chain.
Applications
implemented to connect a
device such as a hand-held
reader to the Auxiliary port
for manual code reading
capability.

2.8.3 RS485 Master/Slave

The RS485 Master/Slave connection is used to collect data from several
scanners to build either an omni-directional or multi-sided reading system;
there can be one Master and up to 8 Slaves connected together.
The Master and Slave scanners are connected together using RS485 half-
duplex on the auxiliary serial interface.
The Master scanner is also connected to either a Host or a Multiplexer on the
main serial interface. The possible main interface type selections are RS232
the main
Host
of each
1
can be
1 Main serial interface
2 Auxiliary serial interface
3 Presence sensor (for On-Line mode)
2
DS6100
Figure 2.36 - Pass through layout
Hand-Held reader
1
3
DS6100
Installation - 2.31
DS6100
3