Allen-Bradley ControlLogix Temperature Input Module | 1756-IRT8I

Allen-Bradley 1756-IRT8I – Premium Temperature Input Module

Key Features

• 8 isolated channels for flexible sensing
•  Supports RTDs, thermocouples & mV signals
•  Ultra-precise 24-bit resolution
•  Fast 1ms scan time
•  Built-in cold junction compensation

Technical Specifications

• Model: 1756-IRT8I (ControlLogix Series)
• Input Types: RTD/Thermocouple/mV (-100 to 100mV)
• Resolution: 0.01μV/count (mV), 0.06mΩ/count (RTD)
• Accuracy: ±0.3°C with CJC
• Response Time: 1ms module scan
• Power Use: 250mA @ 5.1V DC, 150mA @ 24V DC
• Noise Rejection: 75dB normal mode
• Temp Range: 0°C to 60°C

Advanced Functions

• Lead resistance compensation
• Wire break detection (2-5 sec)
• ITS-90 linearization

Your Protection

• 🔒 12-month reliability guarantee
• ✈ Worldwide express shipping
• 🛠 Quick install with 1756-TBCH/TBS6H terminals

Expert Questions

• Q: What RTD types are supported?
  A: 100Ω-1kΩ platinum, 10Ω copper, 120Ω nickel.
• Q: Is CJC included?
  A: Requires separate 1756-CJC sensors.
• Q: What’s the fastest update rate?
  A: 1ms module scan time.
• Q: Can I mix sensor types?
  A: Yes, each channel is independently configurable.
• Q: What’s the minimum detectable signal?
  A: 0.01μV in millivolt mode.

Resources

• 📥 Download 1756-IRT8I full manual