Rockwell Automation 1746-NR4 SLC RTD/Resistance Input Module User Manual - Manual (Page 133)

Publication 1746-UM008B-EN-P - December 2006
I/O Configuration 133
Each tab is labeled with the corresponding channel that it will
configure. The pull down menus let you chose the various
parameters for the channel.
Each menu effects the corresponding bits for the configuration
data file.
Input Type changes bits 0…3 and chooses the type of
RTD/Resistance input.
Data Format changes bits 4…5 and selects between engineering
units and scaled for PID
Broken Input changes bits 6…7 and chooses how to handle an
open circuit condition
Temperature Units changes bit 8 and selects Fahrenheit or
Celsius.
Filter Frequency changes bits 9…10 and sets the cutoff
frequency of the channel filter
Clicking the Channel Enable box will set bit 11 and either enable
or disable the channel
The Excitation Current changes bit 12 and chooses 1 mA or
0.5 mA of excitation current
If Raw/Proportional is selected under data format, the options
for scaling and user ranges may become available.
5. Click OK to apply the changes after all channel parameters have
been chosen.
The following screen appears and gives you the opportunity to
chose where in the ladder logic to place the configuration rung.