Rockwell Automation 1790P-4R0 CompactBlock LDX I/O RTD/Resistance Input Module - Manual (Page 54)

Publication 1790-UM002A-EN-P
A-4 Specifications
RTD/Resistance
Specifications
RTD/resistance Specifications
Inputs per module
4 channel, RTD/Resistance Input
Input Range 1-625
Sensors Supported Sensor Type Degree Counts Resolution
Resistance 100m
Ω
1 to 625
Ω
10 to 6250 100m
Ω
Resistance 10m
Ω
1 to 327
Ω
100 to 32700 10m
Ω
100ohm Pt/
α
=0.00385 -200 to +850°C -2000 to +8500 0.1°C
200ohm Pt/
α
=0.00385 -200 to +850°C -2000 to +8500 0.1°C
500ohm Pt/
α
=0.00385 -200 to +650°C -2000 to +6500 0.1°C
100ohm Pt/
α
=0.003916 -200 to +640°C -2000 to +6400 0.1°C
200ohm Pt/
α
=0.003916 -200 to +640°C -2000 to +6400 0.1°C
500ohm Pt/
α
=0.003916 -200 to +640°C -2000 to +6400 0.1°C
100ohm Nickel -60 to 250°C -600 to 2500 0.1°C
120ohm Nickel -80 to 260°C -800 to 2600 0.1°C
200ohm Nickel -60 to 250°C -600 to 2500 0.1°C
500ohm Nickel -60 to 250°C -600 to 2500 0.1°C
Resolution 16 bits across 625ohms, 0.1°C/bit or 0.1°F/bit (RTD Sensors)
20bit Sigma-Delta modulation converter
Data Format 16 bit Integer (2’s compliment)
Module Scan Time 8ms/channel @ Notch Filter = 60Hz
Overall accuracy 0.2% Full scale @ 0°C-55°C
Settable Notch Filter 10Hz (default), 25Hz, 50Hz, 60Hz, 100Hz, 250Hz, 500Hz
Open Wire Detection Out of range, open wiring
Excitation Current
1mA
Input Impedance 5M ohm