1756-IF16 16-Channel Analog Input Module ±10V/0-20mA | Allen-Bradley

The Original New Allen-Bradley 1756-IF16 16-Channel Analog Input Module is a non-isolated analog voltage/current input module for the ControlLogix platform, designed for high-density analog signal acquisition in industrial automation systems. It accepts voltage (±10V, 0-10V, 0-5V) and current (0-20 mA) signals with 16-bit resolution, supporting single-ended, differential, and high-speed differential wiring methods. Fully integrated with ControlLogix controllers and Studio 5000 Logix Designer® environment.

Core Engineering Highlights:
16-bit Sigma-Delta conversion | 16 single-ended / 8 differential / 4 high-speed differential inputs | ±10V, 0-10V, 0-5V, 0-20mA input ranges | 150 mA @ 5.1V / 65 mA @ 24V backplane current | 2.33 W total backplane power | 250V continuous isolation (inputs-to-backplane)

Key Features:

• Original New Allen-Bradley 1756-IF16 module

• 16 single-ended, 8 differential, or 4 high-speed differential analog inputs

• Voltage inputs: ±10V, 0-10V, 0-5V

• Current inputs: 0-20 mA

• 16-bit resolution (15-bit + sign for bipolar)

• Sigma-Delta conversion method

• Removable Terminal Block (RTB) compatible: 1756-TBCH, 1756-TBS6H

• Electronic, software-configurable module keying

• Real-time channel sampling

• Scaling to engineering units

• On-board data alarming

• Producer/consumer model communication

• Module fault reporting

• Timestamping access to system clock

• Field calibration support

• Open-style enclosure (IP20 equivalent)

• Chassis mounting for ControlLogix system

Applications:

• Process variable monitoring (pressure, flow, level, temperature)

• Machine automation and data acquisition

• Analog signal conversion for industrial control systems

• High-density analog input expansion for ControlLogix platforms

• Factory automation and process control systems

Technical Specifications:

• Catalog Number: 1756-IF16

• Product Type: ControlLogix Non-Isolated Analog Input Module

• Inputs: 16 single-ended, 8 differential, or 4 differential (high-speed)

• Input Ranges: ±10V, 0-10V, 0-5V, 0-20 mA

• Resolution:

  • 320 µV/count (15-bit + sign bipolar) @ ±10.25V

  • 160 µV/count (16-bit) @ 0-10.25V

  • 80 µV/count (16-bit) @ 0-5.125V

  • 0.32 µA/count (16-bit) @ 0-20.5 mA

• Input Impedance: Voltage: >10 MΩ, Current: 249 Ω

• Module Conversion Method: Sigma-Delta

• Data Format: Integer mode (left justified, 2s complement), IEEE 32-bit floating point

• Backplane Current (5.1V): 150 mA

• Backplane Current (24V): 65 mA

• Total Backplane Power: 2.33 W

• Power Dissipation (Max): Voltage: 2.3 W, Current: 3.9 W

• Thermal Dissipation: Voltage: 7.84 BTU/hr, Current: 13.3 BTU/hr

• Calibrated Accuracy @ 25°C: Voltage: Better than 0.05% of range, Current: Better than 0.15% of range

• Module Error: Voltage: 0.1% of range, Current: 0.3% of range

• Settling Time: <80 ms to 5% of full scale

• Normal Mode Noise Rejection: >80 dB @ 50/60 Hz

• Common Mode Noise Rejection: >100 dB @ 50/60 Hz

• Channel Bandwidth: 15 Hz (-3 dB)

• Module Input Scan Time (Min): 16 pt single-ended: 16-488 ms; 8 pt differential: 8-244 ms; 4 pt high-speed differential: 5-122 ms

• Isolation Voltage: 250V continuous, reinforced insulation type, inputs-to-backplane; No isolation between individual inputs

• Overvoltage Protection (Max): Voltage: 30V DC, Current: 8V DC

• Open Circuit Detection Time: Differential voltage: Positive full scale within 5s; Single-ended/differential current: Negative full scale within 5s

• Removable Terminal Block: 1756-TBCH, 1756-TBS6H

• Slot Width: 1

• Wire Category: 2

• North American Temperature Code: T4A

• IEC Temperature Code: T4

• Enclosure Type: None (open-style)

• Dimensions: 155 x 140 x 35 mm (6.1 x 5.5 x 1.4 in.)

• Weight: Approx. 0.23 kg (0.50 lbs)

• Operating Temperature: 0°C to 60°C

• Storage Temperature: -40°C to 85°C

• Certifications: CE, C-TICK, cULus, KC, MARINE, UL

Wiring Methods:

• Single-ended: All 16 channels available, inputs tied to common ground

• Differential: 8 channels available, recommended for improved noise immunity

• High-speed Differential: 4 channels available, fastest data updates

System Compatibility:

• Rockwell Automation ControlLogix controllers

• GuardLogix controllers

• 1756 chassis and power supplies

• Studio 5000 Logix Designer® application

• RSLogix 5000 software

• 1756-TBCH / 1756-TBS6H Removable Terminal Blocks

Related Products:

• 1756-TBCH – Removable Terminal Block (screw clamp) for 1756-IF16

• 1756-TBS6H – Removable Terminal Block (spring clamp) for 1756-IF16

• 1756-IF8 – 8-channel analog input module (non-isolated)

• 1756-IF16K – Conformal coated version for harsh environments

• 1756-IF8K – 8-channel conformal coated analog input module

• 1756-PA72 / 1756-PB72 – ControlLogix power supplies

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Allen-Bradley, ControlLogix, and Studio 5000 are trademarks of Rockwell Automation.