1756-IR6I Allen-Bradley Analog Input Module

Description

The 1756-IR6I is an analog RTD input module by Allen-Bradley, designed for use with the ControlLogix series. It provides 6 isolated RTD input points, offering high precision in temperature measurement with multiple RTD types.

Specifications

• Manufacturer: Rockwell Automation

• Brand: Allen-Bradley

• Product No.: 1756-IR6I

• Module Type: Analog RTD Module

• Series: ControlLogix

• Inputs: 6-Point Isolated RTD

RTD Compatibility

• Compatible RTD Types:

• Platinum 100, 200, 500, 1000 Ω, alpha=385

• Platinum 100, 200, 500, 1000 Ω, alpha=3916

• Nickel 120 Ω, alpha=672

• Nickel 100, 120, 200, 500 Ω, alpha=618

Electrical

• Input Range:

• 1…487 Ω

• 2…1000 Ω

• 4…2000 Ω

• 8…4000 Ω

• Maximum Input Current, Off-State: 2.75 milliamperes

• Resolution:

• 1…487 Ω: 7.7 mΩ/bit

• 2…1000 Ω: 15 mΩ/bit

• 4…2000 Ω: 30 mΩ/bit

• 8…4000 Ω: 60 mΩ/bit

Data Format

• Mode: Integer (left justified, 2's complement)

• IEEE 32-bit Floating Point

Timing

• Module Scan Time:

• 25 ms min floating point (ohms)

• 50 ms min floating point (temperature)

• 10 ms min integer (ohms)

Power

• Backplane Current (5 Volts): 250 milliamps

• Backplane Current (24 Volts): 125 milliamps

• Backplane Current (24 Volts, Off-State): 2 milliamperes