Rockwell Automation Allen-Bradley 1769-IF4, Руководство пользователя

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Publication 1769-UM002B-EN-P - July 2005
Module Data, Status, and Channel Configuration for the Input Modules 3-17
1769-IF8 Input Image
The 1769-IF8 input image file represents data words and status bits. Input
words 0 through 7 hold the input data that represents the value of the analog
inputs for channels 0 through 7. These data words are valid only when the
channel is enabled and there are no errors. Input words 9 and 11 hold the
status bits. To receive valid status information, the channel must be enabled.
1769-IF8 Output Image
The 1769-IF8 output image file contains the clear alarm control bits for the
high- and low-alarm bits on each input channel. These bits are used to clear
alarms when alarms are latched.
1769-IF8 Configuration File
The configuration file contains information that you use to define the way a
specific channel functions. The configuration file is explained in more detail in
1769-IF8 Configuration Data File on page 3-20.
TIP
You can access information in the input image file using
the programming software configuration screen.
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You can access information in the output image file using
the programming software configuration screen.
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Not all controllers support program access to the
configuration file. Refer to your controller’s user manual.