1756-IT6I2 | Allen-Bradley ControlLogix Thermocouple Input Module

Allen-Bradley 1756-IT6I2 – High-Accuracy Thermocouple Input Module for ControlLogix Systems

Key Features

• 6 isolated thermocouple inputs + 2 CJC sensors for precise temperature measurement
• Supports 12 thermocouple types (B, E, J, K, R, S, T, N, C, D, L)
• 16-bit resolution with dual-range input (-12 to 78mV or -12 to 30mV)
• ITS-90 linearization and 0.5µV/°C drift for stable readings
• Built-in noise rejection (60dB normal/160dB common mode)

Technical Specifications

• Brand: Allen-Bradley (Rockwell Automation)
• Model: 1756-IT6I2 (ControlLogix series)
• Input Range: -12 to 30mV (0.7µV/bit) or -12 to 78mV (1.4µV/bit)
• Accuracy: ±0.3°C (CJC sensors)
• Isolation: 120V AC/DC overvoltage protection
• Response Time: 80ms to 5% FS
• Power: 4.6W max, 200mA @5V / 150mA @24V
• Operating Temp: 0°C to 60°C (32°F to 140°F)

Installation & Compatibility

• Requires 1756-TBNH terminal block
• Fits any ControlLogix chassis
• Works with standalone or distributed I/O systems
• Download full specs and wiring guide here

Warranty & Shipping

• 12-month warranty on all defects
• Fast global shipping via FedEx, UPS, or DHL

FAQ

• Q: Can I mix different thermocouple types?
  A: Yes, each of the 6 channels can be independently configured.
• Q: What’s the difference between integer and floating-point modes?
  A: Floating-point offers higher precision for critical applications.
• Q: How often should I calibrate this module?
  A: Annual calibration is recommended for mission-critical systems.
• Q: Does it support DIN rail mounting?
  A: No, it requires a ControlLogix chassis (1756 series).
• Q: What’s the lifespan of this module?
  A: Typical operational life exceeds 10 years with proper maintenance.