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Configuring your system for a dh-485 link, Configuring your system for a dh-485 link -2 – Rockwell Automation 5730 DriveLogix5730 Controller for PowerFlex 700S Drives with Phase II Control User Manual

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9-2

Communicating with Devices on a DH485 Link

Configuring Your System for
a DH-485 Link

For the DriveLogix5730 controller to operate on a DH-485 network, you
need:

a 1761-NET-AIC interface converter for each DriveLogix5730 controller
you want to put on the DH-485 network.

You can have two controllers per one 1761-NET-AIC converter, but you
need a different cable for each controller. Connect one controller to port 1
(9-pin connector) and one controller to port 2 (mini-DIN connector).

RSLogix 5000 programming software to configure the serial port of the
controller for DH-485 communications.

When attempting to go online or upload/download a program using the
Communications/Who Active window in RSLogix 5000 software, disable
the Autobrowse feature to minimize traffic from RSLogix 5000 software on
the DH-485 network.

Step 1: Configure the Hardware

The RS-232 port is built-in to the front of the DriveLogix5730 controller.
The 1769-L31 controller has two serial ports. Connect the serial port to an
RS-232-to-RS-485 interface converter. One possible converter is the
1761-NET-AIC interface converter.

Connect the serial port of the DriveLogix5730 controller to either port 1 or
port 2 of the 1761-NET-AIC converter. Use the RS-485 port to connect the
converter to the DH-485 network.

port 1: DB-9 RS-232, DTE

baud rate selector switch

port 2: mini-DIN 8 RS-232

dc power source selector switch

terminals for external 24V dc power supply

RS-485 port

ahw061

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