Rockwell-automation 1794-L34 FlexLogix Controller System User Manual Manual do Utilizador descarregar pdf (Página 40)

Publication 1794-UM001G-EN-P - January 2007

40 Communicate over Networks

On the DH-485 network, the FlexLogix controller can send and

receive messages to and from other controllers on the network.

For the controller to operate on a DH-485 network, you need:

• a 1761-NET-AIC interface converter for each controller you want

to put on the DH-485 network.

You can have two controllers for each 1761-NET-AIC converter,

but you need a different cable for each controller.

a. Connect the serial port of the controller to either port 1 or

port 2 of the 1761-NET-AIC converter.

b. Use the RS-485 port to connect the converter to the DH-485

network.

The cable you use to connect the controller depends on the port

you use on the 1761-NET-AIC converter.

IMPORTANT

A DH-485 network consists of multiple cable segments. Limit

the total length of all the segments to 1219m (4000 ft.).

If you connect to this port: Use this cable:

port 1

DB-9 RS-232, DTE connection

1747-CP3

1761-CBL-AC00

port 2

mini-DIN 8 RS-232 connection

1761-CBL-AP00

1761-CBL-PM02

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Rockwell-automation 1794-L34 FlexLogix Controller System User Manual Manual do Utilizador Página 40