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
00External 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
01RTD
10
Not used
11
Word
Dec. Bits
(Octal Bits)
Description
Allen-Bradley PLCs
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