Selecting data format (bits 12…14) – Rockwell Automation 1769-IR6 Compact I/O 1769-IR6 RTD/Resistance Input Module User Manual
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Rockwell Automation Publication 1769-UM005B-EN-P - March 2012
Chapter 4 Module Data, Status, and Channel Configuration
Selecting Data Format (Bits 12…14)
Bits 12…14 of the channel configuration word are used to indicate the input
data format. You may choose any of the following formats:
·
raw/proportional
·
engineering units x 1
·
engineering units x 10
·
scaled for PID
·
percent of full scale
TIP
The engineering units data formats represent real
temperature or resistance engineering units provided by the
module. The raw/proportional counts, scaled-for-PID, and
percent of full scale data formats The raw/proportional
counts, scaled-for-PID and percent of full-scale data
formats may yield the highest effective resolutions, but may
also require that you convert channel data to real
engineering units in your control program.
Table 8 - 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
0.1 °C
0.1 °F
1.0 °C
1.0 °F
100
Ω Platinum 385
-2000…8500
-3280…15620
-200…850
-328…1562
0…16383
-32768…32767
200
Ω Platinum 385
-2000…8500
-3280…15620
-200…850
-328…1562
0…16383
-32768…32767
500
Ω Platinum 385
-2000…8500
-3280…15620
-200…850
-328…1562
0…16383
-32768…32767
1000
Ω Platinum 385
-2000…8500
-3280…15620
-200…850
-328…1562
0…16383
-32768…32767
100
Ω Platinum 3916
-2000…6300
-3280…11660
-200…630
-328…1166
0…16383
-32768…32767
200
Ω Platinum 3916
-2000…6300
-3280…11660
-200…630
-328…1166
0…16383
-32768…32767
500
Ω Platinum 3916
-2000…6300
-3280…11660
-200…630
-328…1166
0…16383
-32768…32767
1000
Ω Platinum 3916 -2000…6300
-3280…11660
-200…630
-328…1166
0…16383
-32768…32767
10
Ω Copper 426
-1000…2600
-1480…5000
100…260
-148…500
0…16383
-32768…32767
120
Ω Nickel 618
-1000…2600
-1480…5000
-100…260
-148…500
0…16383
-32768…32767
120
Ω Nickel 672
-800…2600
-1120…5000
-80…260
-112…500
0…16383
-32768…32767
60
Ω Nickel Iron 518
-1000…2000
-3280…1560
-100…200
-328…156
0…16383
-32768…32767