Datalogic SC6000-1200 Bedienerhandbuch PDF herunterladen (Seite 20)

SC6000

RS485 Full-Duplex Interface

The RS485 full-duplex 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 connections

to the Host can be made as follows:

 through the PWO (in which case a CAB-SC6103 cable connects the PWO to the

SC6000)

 directly to the SC6000

See also par. 2.5.1.

The following pins of

the 9-pin connector are used for RS485 full-duplex interface

connection:

Pin Name Function

2 TX485 + RS485 output (+)

3 RX485 + RS485 input (+)

5 GND-ISO Main signal ground

7 RX485 - RS485 input (-)

8 TX485 - RS485 output (-)

SC600

8 TX485-

PWO

GND-ISO5

RX485-

RX48 5+

RX+

TX485+

TX+

Shield

Host

Signal Ground

RX-

CAB-SC610

Figure 11 - RS485 Full-Duplex Interface Connections: Host - PWO- SC6000

SC600

8 TX485-

GND-ISO5

RX485-

RX48 5+

RX+

TX485+

TX+

Shield

Host

Signal Ground

RX-

Figure 12 - RS485 Full-Duplex Interface Connections: Host - SC6000

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 76 77

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