1746-NI16V

Overview of Allen-Bradley 1746-NI16V SLC 500 16-Point Analog Voltage Input Module

The Allen-Bradley 1746-NI16V is a 16-point analog input module designed for voltage signals in the SLC 500 programmable controller family. It offers a wide range of voltage inputs, including ±10 V DC, 1-5 V DC, 0-5 V DC, and 0-10 V DC. The module features high resolution and fast response times with flexible input filtering for process control and industrial automation applications.

Key Features of 1746-NI16V

• 16 individual voltage input channels, configurable for multiple voltage ranges (±10 V, 1-5 V, 0-5 V, 0-10 V DC).
• 16-bit resolution with an input precision of 312 µV per count, ensuring precise analog signal measurement.
• Selectable digital low-pass filters with adjustable frequencies from 6 Hz to 250 Hz to reduce noise and optimize response time.
• High input impedance (20 MΩ) minimizing signal load on sensors.
• Isolation voltage of 500 VAC for 1 second to protect against electrical noise and surges.
• Backplane current: 125 mA at 5 V DC, 75 mA at 24 V DC.
• Update scan times of 9 to 630 milliseconds depending on filter settings.
• Multiple green LED indicators: one for each group of four input channels and one for overall module status.
• Recommended cable: Belden #8761 or equivalent.
• Operating temperature range: 0 to 60°C (32 to 140°F).
• Compact and reliable design suitable for harsh industrial environments.

Technical Specifications

Applications / Use Cases

The 1746-NI16V is ideal for monitoring analog voltage signals in industrial process control, manufacturing automation, and instrumentation systems. Its high accuracy, isolation, and configurable filtering make it suitable for use in electrically noisy environments with stringent process requirements.