The 1734-IR2 is a Resistance Temperature Detector (RTD)input module that is part of Allen-Bradley’s POINT IO product family. Technical specifications Manufacturer Allen Bradley Category PLCs Product Line Point I/O 1734 Part Number 1734-IR2 Weight 0.06 lbs (0.03 kg) Keyswitch Position 6 Power Dissipation 1.0 W @ 28.8V DC Module Type RTD / Resistance input module Series POINT I/O No. of outputs Two (2) Single-ended, non-isolated channels Compatible RTD sensors 100 Pt α = 0.00385; 200 Pt α = 0.00385; 100 Pt α = 0.003916; 200 Pt α = 0.003916; 10 Cu α = 0.00427; 100 Ni α = 0.00618; 120 Ni α = 0.00618 and 120 Ni α = 0.00672. Compatible Resistance input 0-600 Ω Resolution 16 bits – 9.5 mΩ/cnt; 0.03 °C/cnt (Pt385 @ 25 °C) or 0.05 °F/cnt (Pt385 @ 77 °F) Absolute Accuracy 0.1% Full Scale @ 25 Deg. Celsius Input step response (per channel) 60 ms @ Notch = 50 Hz 50 ms @ Notch = 60 Hz 30 ms @ Notch = 100 Hz 25 ms @ Notch = 120 Hz 15 ms @ Notch = 200 Hz 13 ms @ Notch = 240 Hz 10 ms @ Notch = 300 Hz 8 ms @ Notch = 400 Hz 6 ms @ Notch = 480 Hz Input update rate per module 40 ms @ Notch = 50 Hz 33 ms @ Notch = 60 Hz (default) 20 ms @ Notch = 100 Hz 17 ms @ Notch = 120 Hz 10 ms @ Notch = 200 Hz 8 ms @ Notch = 240 Hz 7 ms @ Notch = 300 Hz 5 ms @ Notch = 400 Hz 4 ms @ Notch = 480 Hz Current Draw 220 mA @5V dc Enclosure type rating None (open-style) Module Location 1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS wiring base assembly Inputs 2 Single-Ended, Non-Isolated Conversion Type Delta Sigma Data Format Signed Integer Isolation Voltage 50 Volts Continuous Thermal Dissipation 3.3 BTU/hour Enclosure Open Operating Temperature -20-55 Celsius
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