Emerson ROC364 Manual de usuario descargar pdf (Pagina 13)

ROC Plus SIO Driver

EIO0000001145 03/2012 13

RS-422

Pin Number Symbol Description

1 RDA Receive Data A

2 RDB Receive Data B

3 SDA Send Data A

4 ERA Data Terminal Ready A

5 GND Common Ground

6 CSB Send Possible B

7 SDB Send Data B

8 CSA Send Possible A

9 ERB Data Terminal Ready B

Note:

z When making your own connections, attach a loop back between pins 6 (CSB)

and 9 (ERB), and between 4 (ERA) and 8 (CSA).

z To simplify the wiring, you can use the COM Port Conversion Adapter

(Schneider Electric: XBTZGCOM) and Terminal Block Conversion Adapter

(Schneider Electric: XBTZG949). These accessories allow access to the RS-

422 signals using screw terminals. For information on the signals of the screw

terminals, see the user manual for the XBTZG949.

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Emerson ROC364 Manual de usuario Pagina 13