Allen-Bradley 1746-NI4 SLC 500 Analog Input Module – 4-Channel

Allen-Bradley 1746-NI4: High-Precision Analog Input Module

Measure analog signals with precision using the Allen-Bradley 1746-NI4 analog input module. This versatile 4-channel module delivers exceptional accuracy for SLC 500 systems. The 1746-NI4 supports both voltage and current inputs for maximum application flexibility.

Product Overview

The Allen-Bradley 1746-NI4 is a precision analog input module for SLC 500 systems. This 1746-NI4 module features four configurable channels that accept either voltage or current signals. It’s ideal for monitoring temperature, pressure, flow, and other process variables in industrial applications.

Technical Specifications

Brand: Allen-Bradley (Rockwell Automation)
Series: SLC 500
Model: 1746-NI4
Module Type: 4-Channel Analog Input
Input Channels: 4 differential channels
Input Types: Voltage or current (selectable per channel)
Voltage Range: ±10V DC
Current Range: ±20 mA
Resolution: 16 bits
Accuracy (25°C): ±0.284% of full scale (voltage)
Update Time: 512 microseconds per channel
Input Impedance: 1 MΩ (voltage), 250Ω (current)
Backplane Current (5V): 25 mA
Backplane Current (24V): 85 mA
Non-Linearity: 0.01%
Repeatability: ±1 LSB
Bandwidth: 10 Hz
Operating Temperature: 0 to 60°C (32 to 140°F)
Connection Type: Removable terminal block
Cable Options: 0.5, 1, 2.5, or 5.0 meters

Warranty & Shipping

All purchases include a 12-month warranty covering defects and performance issues. We ship globally using reliable carriers including FedEx, UPS, and DHL for fast delivery.

Comparison With Similar Products

Consider these alternative analog modules for your system:
Allen-Bradley 1746-NI4 (Alternative Source)
Allen-Bradley 1746-NIO4V (Analog Combination Module)

Frequently Asked Questions

• What types of sensors work with this module?
  It works with pressure transducers, temperature sensors, flow meters, and any device outputting ±10V or ±20mA signals.
• How do I configure the input type for each channel?
  Use the DIP switches on the module to select voltage or current input for each channel individually.
• What is the difference between single-ended and differential inputs?
  Differential inputs measure the voltage difference between two wires, rejecting noise better than single-ended inputs.
• Can I mix voltage and current inputs on the same module?
  Yes, each channel can be independently configured for either voltage or current input.
• What is the maximum cable length for analog signals?
  For best results, use shielded cable and keep lengths under 100 feet (30 meters) to minimize noise.

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