Rockwell Automation 1762-IR4 RTD/Resistance Input Module - Manual (Page 48)

Publication 1762-UM003A-EN-P - February 2003
3-14 Module Data, Status, and Channel Configuration
Linear Relationship Between Temperature and PID Counts
The amount over and under user range (full-scale range -410 to
+16793) is also included in the signed integer provided to the
controller. Allen-Bradley controllers, such as the MicroLogix 1500, use
this range in their PID equations. See Determining Effective
Resolution and Range on page 3-20.
Percent of Full Scale Data Format
With the percent of full scale data format, the module presents input
data to the user as a percent of the user-specified range. For example,
for a 100
Ω
platinum 385 RTD, the range -200×C to 850×C is
represented as 0 percent to 100 percent. See Determining Effective
Resolution and Range on page 3-20.
Selecting Input/Sensor Type (Bits 8 to 11)
You can set bits 8 through 11 in the channel configuration word to
indicate the type of input sensor, for example, 100
Ω
platinum 385
RTD. Each channel can be configured for any input type. The valid
input types and bit settings are listed in the channel configuration
table on page 3-7.
+16383
+850 ˚C -200 ˚C
°C
Counts