Watlow Series 734 Data Communications Manual de usuario descargar pdf (Pagina 4)

How to Use Data Communications

WATLOW Series 733/734

RS-422

Figure 1 -

EIA/TIA-422 Inter-

face, Wiring Dia-

gram.

NOTE:

The Electronic

Industry Associa-

tion (EIA) EIA/TIA-

422 standard

recommends a

maximum 4000 ft.

total network

distance.

EIA/TIA-422 Interface Pinouts

73xx-xxxx-xBxx

The EIA/TIA-422 communications uses a four wire (full duplex) system. There are

two separate lines for transmitting, and two lines for receiving data between the

computer and the Series 733/734. With EIA/TIA-422 you can have from one to ten

Series 733/734 controls connected to a single computer.

This diagram is a typical wiring example. The connections on the host computer

may vary depending on models. See page 7 for information about serial interfaces.

Refer to your computer user's manual for more information.

Twisted Pair Wire

Common Pin 8

Gnd.

EIA/TIA-232

EIA/TIA-422

Converter

Series

733 / 734

Series

733 / 734

T+

T-

R+

R-

Com

T+

T-

R+

R-

Com

R+

R-

T+

T-

Com

1 2 3 4 5 6 7 8 9 ... 23 24

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Watlow Series 734 Data Communications Manual de usuario Pagina 4

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