Rockwell Automation 1769-ADN Compact I/O 1769-ADN DeviceNet Adapter User Manual

Page 130

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Publication 1769-UM001B-EN-P - October 2002

6-18 Application Examples

Choose OK to accept the Polled configuration. You’ll now see the
1756-DNB Scanner Module screen. Choose the Input tab and you’ll
see this screen.

From this screen, you can map the input data received from the
1769-ADN into the input tag of the Logix5550 controller or 1:I.Data.0
through 1:I.Data.12 (these are DINTs, so the total number of 16-bit
words is 26 or 52 bytes).

To map the data into the input image table, click on the 1769-ADN so
that it is highlighted. Now choose AutoMap.

The first two 16-bit words received in 1:I.Data.0 contain status
information from the 1769-ADN. Refer to chapter 2 of this manual for
additional information concerning status words.

The actual input data begins with tag address 1:I.Data.1 in the
Logix5550 controller. Note that DINTs 1:I.Data.0 through 1:I.Data.12
are mapped. This corresponds to the 52 bytes or 26 words we entered
into the 1756-DNB scanner’s scanlist/Edit I/O Parameters screen
(which originally came from the 1769-ADN adapter’s Summary
screen).

Choose the Output tab. To map the outputs for the Logix5550
controller’s output tag, follow the same procedure used to map the
inputs. Click on the 1769-ADN so that it is highlighted and choose
AutoMap.

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