Rockwell-automation 5720 DriveLogix System Manual do Utilizador descarregar pdf (Página 191)

Publication 20D-UM002C-EN-P - November 2003

Communicating with Devices on a DeviceNet Link 8-11

Example 2: Using a

1788-CN2DN Linking

Device

In the following example, one DriveLogix controller controls remote

DeviceNet devices through a 1788-CN2DN linking device.

This example has a DriveLogix controller controlling three DeviceNet devices

through the linking device. The controller automatically creates a

rack-optimized connection for the remote data based on the configuration of

the linking device.

The tag name for the rack-optimized array tag is based on the name of the

linking device. For example, if you name the linking device “cn_2_dnet,” the

software automatically creates cn_2_dnet:I and cn_2_dnet:O data structures.

DriveLogix controller

DeviceNet

1788-CN2DN linking device

ControlNet

ControlLogix controller

with 1756-DNB

PanelView

terminal

1794-ADN with FLEX I/O modules

EXAMPLE

The 1788-CN2DN device in this example is in named

“ControlNet_Interface_Module”.

The data for the linking device is configured as a

rack-optimized connection.

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Rockwell-automation 5720 DriveLogix System Manual do Utilizador Página 191