Rockwell Automation 1769-OF2 Compact I/O Analog Modules - Manual (Page 168)

Publication 1769-UM002B-EN-P - July 2005
D-8 Configuring Modules in a Remote DeviceNet System with a 1769-ADN DeviceNet Adapter
3. Click on the Configuration Settings button to see what the eleven input
and nine output words represent.
The eleven input words contain channel diagnostic data for the eight
channels. The nine output words contain the actual analog output data
for the eight channels along with one additional word containing the
control bits for unlatching alarms.
4. Click OK or Cancel to exit this screen and return to the Configuration
screen.
5. Select No Input Data under Input Data Size if your application requires
only the data words and not the status information.
The Input Size changes to 0, while the Output Size remains at nine
words. The Revision number for the series B 1769-OF8C module is
two. With this, you may leave the Electronic Keying to Exact Match. It
is not recommended to disable keying, but if you are unsure of the exact
revision of your module, selecting Compatible Module allows your
system to operate, while still requiring a 1769-OF8C module in slot 2.
1769-OF8C Example of External Power
The series B 1769-OF8C module differs from the series A module only in that
it allows external 24V dc power. The external power connection allows you to
draw 24V dc power for the module from your external source, should your
1769 power supply not provide enough 24V dc power for your particular set
of 1769 I/O modules.
If you are using external 24V dc power for your 1769-OF8C module, you must
click the white box to the left of “Using External +24v Power Source”, so that
a check mark appears in the box. Do not click on the box if you are not using
external 24V dc power.