Datalogic DS8100A-3115 Instalační manuál stáhnout pdf (Strana 131)

ALTERNATIVE LAYOUTS

117

PASS THROUGH

When Pass Through is activated on the Auxiliary interface, the DS8100A reader can be

integrated in a network consisting of different scanners not provided with a Lonworks

interface.

This connection mode allows two or more devices to be connected to a single external serial

interface. The DS8100A transmits the messages received by its auxiliary interface onto its

main interface. The received data is transmitted "as is", (passed-through), and therefore any

data formatting requirements must be made at each individual reader.

In this configuration a series of scanners can be connected together using RS232 on the

main interface and all messages will be passed through this chain to the host. The reading

phase of each scanner is independent from the others. In Pass Through connections each

scanner is provided with its relative External Trigger (multi P.S.).

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

Auxiliary port for manual code reading capability.

For the RS232 connections the maximum cable length is 15 m (50 ft).

The scanners represented in the following figures are configured in Pass Through mode.

Main Serial Interface

uxiliary Serial Interface

* P.S. (Presence Sensor) connected to Input 1 (External Trigger/PS) input.

Figure 106 – Pass Through Connection for DS8100A Standard Models

P.S.* P.S.* P.S.*

DS8100A

Power

CBX100

DS2100N

Gryphon

Host

CBX100

DS2100N

1 21

CAB-F0x

1 2 ... 126 127 128 129 130 131 132 133 134 135 136 ... 140 141

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Datalogic DS8100A-3115 Instalační manuál Strana 131