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Module Data, Status, and Channel Configuration
for Analog Input Modules
This chapter examines the analog input module's data table, channel status,
and channel configuration.
Analog Input Image
The input image file represents data words and status bits. Input words 0...3
hold the input data that represents the value of the analog inputs for channels
0...3. These data words are valid only when the channel is enabled and there are
no errors. Input word 4 holds the status bits. Analog input data is presented as
raw/proportional.
Input words 5 and 6 contain input data for two optional discrete input
expansion modules.
1790D-N4C0 and 1790D-TN4C0 Configuration
Each analog current input can be configured for either the 4...20 mA or
0...20 mA range. See
for instructions.
Analog Input Data File
The input data table allows you to access analog input module and data for use
in the control program, through word and bit access.
table structure.
Table 9 - 1790D-N4C0, 1790D-TN4C0, 1790D-TN4V0 Input Data File
Bit Position
Word
15
14
13
0
Not Used
1
Not Used
2
Not Used
3
Not Used
4
Not Used
Rockwell Automation Publication 1790-UM001B-EN-P - April 2021
Configure Analog Modules with RSNetWorx on page 29
12
11
10
9
8
7
Analog Input Data Channel 0
Analog Input Data Channel 1
Analog Input Data Channel 2
Analog Input Data Channel 3
Chapter
Table 9
shows the data
6
5
4
3
2
1
S3
S2
S1
3
0
S0
25
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