Allen-Bradley | 1746-NI8 |SLC 500

Product Description: Allen-Bradley 1746-NI8

The Allen-Bradley 1746-NI8 is an 8-channel analog input module designed for the SLC 500 programmable controller platform. This module supports both voltage and current input signals, offering versatility and high accuracy for data acquisition from field sensors and instruments. It is ideal for applications requiring multi-channel analog input in a compact footprint.

Key Features

• 8 individually configurable analog input channels
• Supports both voltage (±10V, 0–10V) and current (4–20 mA, 0–20 mA) signals
• High 16-bit resolution ensures precise data capture
• Channel-to- backplane optical isolation enhances noise immunity
• Diagnostic LEDs for status indication and troubleshooting
• Configurable input ranges for flexible deployment
• Compatible with all SLC 500 chassis and processors

Technical Specifications

• Number of Channels: 8 Analog Inputs
• Input Signal Ranges:
  • Voltage: ±10V, 0–10V
• Resolution: 16 bits (1 part in 65,536)
• Accuracy: ±0.1% of full scale
• Input Impedance:
  • Voltage: ≥1 MΩ
• Backplane Current Draw: 110 mA at 5V DC, 90 mA at 24V DC
• Isolation: 1500V RMS (channel-to-backplane)
• Operating Temperature: 0°C to 60°C
• Module Width: 1 slot

Application Areas

• Industrial process monitoring (temperature, flow, level, pressure)
• Data acquisition systems
• Analog instrumentation integration
• Chemical and food processing automation
• Environmental monitoring systems

Advantages

• High channel density reduces module count in control systems
• Wide signal compatibility for diverse analog sensors
• High-resolution input for accurate process measurements
• Channel isolation protects controller and improves signal quality
• Easy configuration and seamless integration with SLC 500 platforms