Datalogic Scanning DS4300 manual 3 RS232 Master/Slave, 30 RS232 Master/Slave layout

DATALOGIC DS4300

2.6.3 RS232 Master/Slave

The RS232 master/slave connection is used to collect data from several scanners to build either an omni-directional or a multi-sided reading system; there can be one master and up to 9 slaves connected together.

The Slave scanners use RS232 only on the main and auxiliary serial interfaces. Each slave DS4300 transmits the messages received by the auxiliary interface onto the main interface. All messages will be passed through this chain to the Master.

The Master scanner is connected to the Host on the main serial interface. The possible main interface types for the Master scanner are RS232 or RS485. (20 mA C.L. can also be used if the INT-24 accessory is installed).

Either On-Line or Serial On-Line Operating modes can be used in this layout.

When On-Line Operating mode is used, the external trigger signal is unique to the system however it is not necessary to bring the external trigger signal to the Slave scanners.

The main and auxiliary ports are connected as shown in the figure below.

1DS4300 Slave

2 2

DS4300

Slave

1

		DS4300
1		Master
		3
1	Main serial interface	Host
2	Auxiliary serial interface
3	External Trigger (for On-Line mode)

Figure 2.30 - RS232 Master/Slave layout

Installation - 2.23