Allen-Bradley Compact I/O 1769-ADN DeviceNet, User Manual

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Publication 1769-UM001B-EN-P - October 2002
Application Examples 6-5
Next, you’ll want to configure the individual I/O modules. When you
choose the Slot button next to each I/O module, you’ll see a screen
allowing you to view and modify the I/O data size, module keying,
and choose the state of each output (provided the module is an
output module) in the event that the SLC processor is placed in the
Program or Fault mode.
Modules requiring configuration, like analog I/O modules, must be
configured by choosing the Slot button.
Choosing I/O Data Size is useful when determining how the I/O data
is packed in the SLC I/O image table. Data Description shows you a
description of each word shown in the I/O Data Size dialog. By
default, discrete output modules use an output word and an input
word. The input word contains an echo of the output data. You could
disable this echo to save input image, but for this example we will
leave the echo enabled.
Choose the I/O Summary tab for the 1769-ADN DeviceNet adapter.
You’ll see this screen.
This is a summary of your 1769 system. Note the Total Input and
Output Bytes as you’ll need this information when configuring the
1747-SDN scanner.
Choose Apply . This will download your configuration to the
1769-ADN. Then choose OK to close the adapter’s window and return
to the network screen.
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