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

Page 121

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Publication 1769-UM001B-EN-P - October 2002

Application Examples 6-9

Note that words O:3.1 through O:3.9 are mapped. These nine words
correspond to the 18 bytes we entered into the 1747-SDN scanner’s
scanlist/Edit I/O Parameters screen (which originally came from the
1769-ADN adapter’s Summary screen).

We chose to map the output data to the SLC 5/04 processor’s output
image rather than the M0 file. If you prefer to map to the M0 file,
choose M file instead of Discrete.

Choose Apply. Choose Yes to download your configuration to the
1747-SDN.

You have successfully configured your 1747-SDN scanner to exchange
I/O data with your 1769-ADN adapter.

Accessing the I/O Data from
the 1769-ADN in the SLC
Processor

Start your SLC 500 Programming Software. Create a minimal program
that includes configuring the I/O with the 1747-SDN in slot 3 of the
processor chassis as described in Configuring the SLC System on page
6-1.

Add a single ladder rung to file 2: an unconditional rung with an OTE
addressed to O:3.0/0. This is the RUN/IDLE bit for the 1747-SDN.
When the SLC processor is placed into the RUN mode, the 1747-SDN
will also then be placed into the RUN mode. Save and download the
program to the SLC processor.

Place the SLC processor into the RUN mode and follow the I/O maps
below to determine where each input module’s data will reside as
well as which output word(s) are for each output module. Use the
Input and Output File Data Monitors in the programming software to
experiment with viewing inputs and manipulating outputs, until you
are comfortable with the I/O mapping to write your ladder program.

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