Allen-Bradley 1756-IF16 ControlLogix Analog Input Module

The Allen-Bradley 1756-IF16 is an analog input module designed for use with ControlLogix systems, providing high-precision input signal processing for a variety of industrial automation applications. This module supports EtherNet/IP connectivity, allowing seamless integration into ControlLogix networks. It offers 16 channels of analog input, each capable of handling current or voltage signals, making it versatile for different types of sensors.

Advantages:

• 16 configurable input channels for flexibility in monitoring multiple processes
• High accuracy and configurable filtering to ensure reliable data acquisition
• EtherNet/IP integration for easy network communication
• Suitable for harsh industrial environments with robust electrical and environmental specifications

General Info

• Manufacturer: Allen-Bradley
• Model Number: 1756-IF16
• Type: ControlLogix Analog Input Module
• Number of Channels: 16
• Signal Type: Configurable for current or voltage
• Network Type: EtherNet/IP
• Compatibility: ControlLogix chassis and EtherNet/IP networks
• Operating Temperature Range: 0°C to 60°C

Features

• Configurable Input Channels: The module features 16 input channels, each individually configurable for either current or voltage input, providing flexibility in accommodating various sensor types. The module supports input ranges of 0-20 mA, 4-20 mA, ±10V, and 0-10V.

• High Accuracy: It offers a measurement accuracy of ±0.1% of full scale, ensuring precise and reliable data for critical process monitoring. The input channels are isolated to prevent interference and protect other system components.

• Advanced Filtering: The 1756-IF16 module includes adjustable digital filtering, allowing users to set the filtering frequency to minimize noise and improve signal quality. Filtering options range from no filtering to 256 Hz, depending on application needs.

• EtherNet/IP Integration: The module is designed for integration into EtherNet/IP networks, allowing seamless data communication with controllers and other devices in the system. This network flexibility makes it suitable for modern industrial applications that require remote monitoring and control.

• Environmental Robustness: With an operating temperature range of 0°C to 60°C and a humidity tolerance of up to 95% (non-condensing), the module is designed to operate reliably in challenging industrial environments.

Technical Specifications

• Electrical Specifications:

  • Input Signal Types:
    • Current: 0-20 mA, 4-20 mA
    • Voltage: ±10 V, 0-10 V
  • Input Impedance:
    • Current: 250 Ω
    • Voltage: 1 MΩ
  • Conversion Type: Delta-sigma A/D conversion
  • Power Consumption:
    • Backplane Power: 3.5 W at 5.1 V DC
    • External Power: 2.5 W at 24 V DC
  • Power Dissipation: 4.8 W
  • Thermal Dissipation: 16.4 BTU/hr
  • Accuracy:
    • Current Inputs: ±0.1% of full scale at 25°C
    • Voltage Inputs: ±0.1% of full scale at 25°C
  • Resolution: 16 bits, 0.305 μA per LSB for current, 312.5 μV per LSB for voltage
  • Update Rate: Programmable, from 5 ms to 255 ms per channel
  • Input Overload Protection:
    • Current Inputs: 30 mA continuous
    • Voltage Inputs: ±30 V DC continuous
  • Common Mode Rejection Ratio (CMRR): 85 dB at 50/60 Hz
  • Normal Mode Rejection Ratio (NMRR): 70 dB at 50/60 Hz

• Mechanical Specifications:

  • Module Dimensions: 142 mm (H) x 35 mm (W) x 145 mm (D)
  • Weight: 0.5 kg
  • Mounting Method: Installed in a ControlLogix chassis
  • Field Wiring Connector: Removable terminal block (RTB), 20-pin or 40-pin

• Environmental Specifications:

  • Operating Temperature Range: 0°C to 60°C
  • Storage Temperature Range: -40°C to 85°C
  • Relative Humidity: 5% to 95%, non-condensing
  • Shock:
    • Operating: 30 g peak for 11 ms
    • Non-operating: 50 g peak for 11 ms
  • Vibration:
    • Operating: 10 to 500 Hz, 2 g peak
    • Non-operating: 10 to 500 Hz, 5 g peak

• Communication Specifications:

  • Communication Interface: EtherNet/IP (integrated with ControlLogix)
  • Configuration Software: RSLogix 5000 or Studio 5000
  • Channel Update Time: Programmable from 5 ms to 255 ms per channel, dependent on filter settings

• Isolation and Protection:

  • Channel-to-Channel Isolation: None (channels are not isolated from each other)
  • Channel-to-System Isolation: 250 V continuous, basic insulation
  • Overvoltage Protection:
    • Voltage Inputs: ±30 V continuous
    • Current Inputs: ±30 mA continuous

• Performance Specifications:

  • Channel Configuration: 16 single-ended input channels
  • Input Filter: Programmable digital filter, selectable from no filtering up to 256 Hz to minimize signal noise
  • Input Range:
    • Current: 0-20 mA, 4-20 mA
    • Voltage: ±10 V, 0-10 V
  • Data Format: Signed integer, 16-bit resolution

• LED Indicators:

  • Status Indicators:
    • Module status (OK)
    • Network activity (NET A and NET B)
    • Individual channel status

• Certifications and Compliance:

  • Safety Standards: UL Listed, CSA Certified, CE Marked
  • Hazardous Location Certifications:
    • ATEX Certified
    • Class I, Division 2, Groups A, B, C, D, T4
  • EMC Conformity:
    • CE (EMC Directive)
    • EN 61326-1 Industrial Environment
    • EN 61000-6-2 and EN 61000-6-4