Rockwell Automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual - Manual (Page 52)

Publication 1794-UM064B-EN-P - May 2014
40 Communicate With Your Module
Write Word 1 04…05 Sensor Mode Select bits
Bit 05 04 Sensor mode select for channels 0...3
Thermocouple
0 0 External compensation – uses cold junction sensors
0 1 Internal compensation – uses the value selected for "reference junction selection"
1 0 No compensation (Data is referenced to 0 °C)
1 1 Differential measurement between 2 channels (0…1, 2…3, 4…5, 6…7)
RTD
0 0 1-wire RTD no compensation
0 1 2-wire RTD with user selected compensation
1 0 3-wire RTD
1 1 4-wire RTD
06…07 Sensor
Bit 07 06 Input type selection for channels 0…3
0 0 Thermocouple
0 1 RTD
1 0 Not used
1 1
08…11
(10…13) Sensor Mode Select bits
RTD Type
Bit 11 10 09 08 Sensor type for channels 4...7
0 0 0 0 Resistance (default)
0 0 0 1 100
Ω Pt α = 0.00385 Euro (-200...870 °C)
0 0 1 0 200
Ω Pt α = 0.00385 Euro (-200...400 °C)
0 0 1 1 100
Ω Pt α = 0.003916 U.S. (-200...630 °C)
0 1 0 0 200 Ω Pt α = 0.003916 U.S. (-200...400 °C)
0 1 0 1 100 Ω Nickle (-60...250 °C)
0 1 1 0 200 Ω Nickle (-60...200 °C)
0 1 1 1 120 Ω Nickle (-80...320 °C)
1 0 0 0 10 Ω Copper (-200...260 °C)
1001...1111 not used
Word Dec. Bits
(Octal Bits) Description