Rockwell Automation 1757-ABRIO Process Remote I/O (RIO) Communication Interface Module User Manual
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Publication 1757-UM007D-EN-P - December 2008
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Supported 1771 Modules Chapter 8
To configure the 1771-IR module, complete the following steps.
1. Set the global RTD type to either 10-ohm copper or 100-ohm
platinum. If the RTD you are using is neither of these two, you
will override each channel to report the results in ohms.
2. If the RTD type is set to 10-ohm copper, enter the resistance
value at 25 C.
3. Select the Units of measurement, either degrees Fahrenheit or
Celsius, or Ohms.
4. If Ohms is the selected unit of measurement, select a resolution
of 10 M per count or 30 M per count.
5. For each channel, set the bias, gain and offset.
Refer to the RTD Input Module User Manual, publication
, for more information.
6. If you want any of the channel results to be returned in Ohms,
check the Channel Units Override box for that channel.
7. If you want to use real-time sampling (RTS), check the RTS Rate
Enabled box and select the sampling rate from 0.1 to 3.1
seconds.
8. Type the module Update Time.
The Update Rate is the rate at which the block transfer read,
which reads the data from the 1771-IR module, occurs. The
range of values is 1 to 16382 ms. 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.
9. Click OK to accept the values.