Datalogic QLM500 Manual de Instruções descarregar pdf (Página 87)

MATRIX 410™ CONNECTOR ELECTRICAL CONNECTIONS

5.4.2 RS485 Full-Duplex Interface

The RS485 full-duplex (5 wires + shield) interface is used for non-polled communication

protocols in point-to-point connections over longer distances (max 1200 m / 3940 ft) than

those acceptable for RS232 communications or in electrically noisy environments.

The following pins of the M16 19-pin connector are used for RS485 full-duplex

communication:

Name

Function

TX+

RS485 Transmit Data (+)

TX-

RS485 Transmit Data (-)

RX+

RS485 Receive Data (+)

RX-

RS485 Receive Data (-)

GND

Ground

MATRIX

GND

RX+

RX-

TX-

TX+

USER INTERFACE

TX485

RX485

SHIELD

Reference Ground

Earth Ground

Chassis

Figure 77 - RS485 Full-duplex Connections

NOTE

For applications that do not use RX485 signals, do not leave these lines

floating but connect them to GND as shown below.

MATRIX

GND

RX+

RX-

TX-

TX+

USER INTERFACE

RX485

SHIELD

Reference Ground

Earth Ground

Chassis

Figure 78 - RS485 Full-duplex Connections using Only TX Signals

1 2 ... 82 83 84 85 86 87 88 89 90 91 92 ... 160 161

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