I/o data – Rockwell Automation 1757-ABRIO Process Remote I/O (RIO) Communication Interface Module User Manual

Page 110

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Publication 1757-UM007D-EN-P - December 2008

Chapter 8 Supported 1771 Modules

2. If desired, enable digital filtering on any channel by selecting a

non-zero time constant.

The values range from 0.1 to 9.9 seconds. Set the value to N/A
to disable digital filtering.

3. If desired, enable real-time sampling and set the sampling rate,

from 0.1 to 10.0 seconds.

This becomes the effective data update rate and may override
the update rate if the update rate is smaller.

4. Set the Update Time for the module’s data.

The range is 1 to 16382 milliseconds. This sets the requested
update rate; the actual rate depends on the baud rate, the
number of racks on the RIO network and whether block
transfers are running to other modules in the same rack.

5. Click OK to accept the module configuration.

I/O Data

The 1771-NIV module returns 8 words of floating point data to the
host controller.

This data can be mapped to a numeric read tag.

1771-NIV Module I/O Data

Word

Description

0

Channel 1 data

1

Channel 2 data

2

Channel 3 data

3

Channel 4 data

4

Channel 5 data

5

Channel 6 data

6

Channel 7 data

7

Channel 8 data

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