Rockwell Automation 1762-IR4 RTD/Resistance Input Module - Manual (Page 44)

Publication 1762-UM003A-EN-P - February 2003
3-10 Module Data, Status, and Channel Configuration
Raw/Proportional Data Format
The raw/proportional data format provides the greatest resolution of
all the data formats. For this format, the value presented to the
controller is proportional to the selected input. It is also scaled to the
maximum data range allowed by the bit resolution of the A/D
converter and selected filter frequency.
If you select the raw/proportional data format for a channel, the data
word will be a linearized number between -32768 and +32767. The
value -32768 corresponds to the lowest temperature value for an RTD
or the lowest resistance value for a resistance device.
Table 3.5 Data Formats for RTD Temperature Ranges for 0.5 and 1.0 mA Excitation Current
RTD Input Type
Data Format
Engineering Units x1 Engineering Units x10 Scaled-
for-PID
Proportional
Counts
Percent of
Full Scale
0.1°C 0.1°F 1.0°C 1.0°F
100
Ω
Platinum 385 -2000 to +8500 -3280 to +15620 -200 to +850 -328 to +1562
0
to
16383
-32768
to
+32767
0
to
+10000
200
Ω
Platinum 385 -2000 to +8500 -3280 to +15620 -200 to +850 -328 to +1562
500
Ω
Platinum 385 -2000 to +8500 -3280 to +15620 -200 to +850 -328 to +1562
1000
Ω
Platinum 385 -2000 to +8500 -3280 to +15620 -200 to +850 -328 to +1562
100
Ω
Platinum 3916 -2000 to +6300 -3280 to +11660 -200 to +630 -328 to +1166
200
Ω
Platinum 3916 -2000 to +6300 -3280 to +11660 -200 to +630 -328 to +1166
500
Ω
Platinum 3916 -2000 to +6300 -3280 to +11660 -200 to +630 -328 to +1166
1000
Ω
Platinum 3916 -2000 to +6300 -3280 to +11660 -200 to +630 -328 to +1166
10
Ω
Copper 426 -1000 to +2600 -1480 to +5000 +100 to +260 -148 to +500
120
Ω
Nickel 618 -1000 to +2600 -1480 to +5000 -100 to +260 -148 to +500
120
Ω
Nickel 672 -800 to +2600 -1120 to +5000 -80 to +260 -112 to +500
604
Ω
Nickel Iron 518 -1000 to +2000 -3280 to +3920 -100 to +200 -328 to +392