Publication 1794-6.5.12 - November 1997
5-8
How Communication Takes Place and I/O Image Table Mapping with the DeviceNet Adapter
Write word 2
cont.
Bits 04-05
Sensor Mode Select bits
Bit
05
04
Sensor mode select for channels 0-3
Thermocouple
0
0
External compensation – uses cold junction sensor
0
1
Internal compensation – uses the value selected for reference junction
1
0
No compensation (Data is referenced to 0°C.)
1
1
Differential measurement between 2 channels
RTD
0
0
2-wire RTD no compensation
0
1
2-wire RTD with loop resistance compensation
1
0
3-wire RTD
1
1
4-wire RTD
Bits 06-07
Input Type Select
Bit
07
06
Input type selection for channels 0-3
0
0
Thermocouple
0
1
RTD
1
0
Not used
1
1
Word
Dec. Bits
(Octal Bits)
Description
Содержание 1794-IRT8
Страница 1: ...User Manual Thermocouple RTD Millivolt Input Module Cat No 1794 IRT8 Allen Bradley Allen Bradley PLCs ...
Страница 3: ...Publication 1794 6 5 12 November 1997 2 Allen Bradley PLCs ...
Страница 7: ...Publication 1794 6 5 12 November 1997 P 4 Using This Manual Allen Bradley PLCs ...
Страница 33: ...Publication 1794 6 5 12 November 1997 3 6 Programming Your Thermocouple RTD Input Module Allen Bradley PLCs ...