Manual

300 Publication 1756-UM009C-EN-P - December 2010
Appendix A Analog I/O Module Specifications
12
34
56
78
910
1112
1314
1516
1718
1920
1756-IR6I 4-wire RTD
4-wire RTD
Shield Ground
IN-1/A
IN-1/B
RTN-1/C
IN-3/A
IN-3/B
RTN-3/C
Not used
IN-5/A
IN-5/B
RTN-5/C
IN-0/A
IN-0/B
RTN-0/C
IN-2/A
IN-2/B
RTN-2/C
Not used
IN-4/A
IN-4/B
RTN-4/C
· Do not connect more than two wires to any single terminal.
· Wiring is exactly the same as the three--wire RTD with one wire left open.
Input Signal to User Count Conversion - 1756-IR6I
Range Low Signal and User Counts High Signal and User Counts
1...487 Ω 0.859068653 Ω
-32768 counts
507.862 Ω
32767 counts
2...1000 Ω 2 Ω
-32768 counts
1016.502 Ω
32767 counts
4...2000 Ω 4 Ω
-32768 counts
2033.780 Ω
32767 counts
8...4020 Ω 8 Ω
-32768 counts
4068.392 Ω
32767 counts
Technical Specifications - 1756-IR6I
Attribute 1756-IR6I
Inputs 6 individually isolated RTD
Input range 1…487 Ω
2…1000 Ω
4…2000 Ω
8…4020 Ω
Resolution 16 bits
1…487 Ω: 7.7 mΩ/bit
2…1000 Ω: 15 mΩ/bit
4…2000 Ω: 30 mΩ/bit
8…4020 Ω: 60 mΩ/bit
ANALOG INPUT
CAL
OK