Allen Bradley 1756-IR6I /A ControlLogix Analog Isolated Input RTD 6 Point Input

Allen-Bradley 1756-IR6I ControlLogix 6-Point Isolated RTD Input Module

The Allen-Bradley 1756-IR6I is a high-precision, 6-point isolated RTD (Resistance Temperature Detector) input module designed for the ControlLogix platform. It facilitates accurate temperature measurements across various industrial applications by supporting multiple RTD sensor types and offering advanced features for enhanced performance.

Key Features

• Input Channels: Six individually isolated RTD inputs, ensuring reliable and independent measurements across multiple sensors.
• Supported RTD Types: Compatible with a wide range of RTD sensors, including:
  • 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)
  • Copper 10 Ω
• Resolution: 16-bit resolution, providing precise measurements with the following increments:
  • 1…487 Ω: 7.7 mΩ/bit
  • 2…1000 Ω: 15 mΩ/bit
  • 4…2000 Ω: 30 mΩ/bit
  • 8…4020 Ω: 60 mΩ/bit
• Input Ranges: Configurable input ranges to accommodate various sensor specifications:
  • 1…487 Ω
  • 2…1000 Ω
  • 4…2000 Ω
  • 8…4000 Ω
• Data Formats: Supports both IEEE 32-bit floating point and 16-bit integer data formats, offering flexibility in data processing and integration.
• Advanced Features: Includes on-board data alarming, scaling to engineering units, real-time channel sampling, and configurable notch filtering to enhance measurement accuracy and system responsiveness.

Technical Specifications

• Current Draw:
  • 250 mA at 5.1V
  • 125 mA at 24V
• Power Dissipation: Maximum of 4.3 W, ensuring efficient energy usage within the system.
• Thermal Dissipation: 14.66 BTU/hr, facilitating effective heat management during operation.
• Isolation Voltage: 250V continuous between inputs, providing robust protection against electrical interference.
• Environmental Conditions:
  • Operating Temperature: 0…60 °C (32…140 °F)
  • Storage Temperature: -40…85 °C (-40…185 °F)
  • Relative Humidity: 5…95% non-condensing
• Noise Rejection:
  • Normal Mode: 60 dB at 60 Hz
  • Common Mode: 120 dB at 60 Hz, 100 dB at 50 Hz
• Module Scan Time:
  • 25 ms minimum for floating point (ohms)
  • 50 ms minimum for floating point (temperature)
  • 10 ms minimum for integer (ohms)

Installation and Compatibility

The 1756-IR6I module is designed for seamless integration into the ControlLogix system, occupying a single slot in the chassis. It is compatible with removable terminal blocks (RTBs) such as the 1756-TBNH or 1756-TBSH, facilitating straightforward installation and maintenance.

Applications

This module is ideal for industrial environments requiring precise temperature monitoring and control, including manufacturing processes, chemical processing, and energy management systems. Its high resolution and advanced features make it suitable for applications demanding accurate and reliable temperature data.

By incorporating the Allen-Bradley 1756-IR6I into your ControlLogix system, you can achieve enhanced temperature measurement capabilities, contributing to improved process control and operational efficiency.