Datalogic Compact 2D Reader Matrix-2000 Manual de Instruções descarregar pdf (Página 69)

TYPICAL LAYOUTS

6.2 PASS-THROUGH

Pass-through mode allows two or more devices to be connected to a single external serial

interface.

Each reader transmits the messages received by the Auxiliary interface onto the Main

interface. All messages will be passed through this chain to the host.

When One Shot or Phase Mode operating mode is used, the reader can be activated by an

External Trigger (for example a pulse from a photoelectric sensor) when the object enters its

reading zone.

Applications can be implemented to connect a device such as a hand-held reader to the

Auxiliary port of the last reader in the chain for manual code reading capability.

The Main and Auxiliary ports are connected as shown in the figure below:

2 1

Device#1 Device#2 Device#n

3 3 3

 Main Serial Interface (RS232 only)

 Auxiliary Serial Interface (RS232)

 External Trigger (for One Shot or Phase Mode)

Power

Host

Figure 88 – Pass-Through Layout

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 107 108

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Datalogic Compact 2D Reader Matrix-2000 Manual de Instruções Página 69