1746-NIO4V | Allen-Bradley | 4-Channel Analog Input/Output Module

Product Description

The 1746-NIO4V is an analog input/output module from the Allen-Bradley SLC 500 series, designed to provide high-resolution analog signal handling for voltage-based control applications. This module includes two input channels and two output channels, offering flexible configuration for both voltage and current signals.

With 16-bit resolution and a fast update time of 512 microseconds, the 1746-NIO4V ensures precise data acquisition and control feedback in industrial automation systems. Its 500 VDC isolation barrier provides reliable protection between field wiring and the backplane, ensuring system integrity and long-term durability.

Technical Specifications

• Manufacturer: Allen-Bradley

• Model / Part Number: 1746-NIO4V

• Product Type: Analog Input/Output Module

• Series: SLC 500

• SLC Communication Format: 16-bit two’s complement binary

• Input Channels: 2 differential (voltage or current selectable per channel, non-isolated)

• Output Channels: 2 voltage outputs, non-isolated

• Resolution: 16-bit (305.176 µV per LSB)

• Repeatability: ±1 LSB

• Input Signal Range: -10 to +10 V DC

• Absolute Maximum Input Voltage: ±7.5 V DC or 7.5 V AC RMS

• Full-Scale Input: 10 V DC

• Update Time: 512 µs for all channels operating in parallel

• Field-to-Backplane Isolation: 500 V DC

• Converter Type: Successive approximation

• Power Dissipation: Low profile, optimized for SLC chassis

• Shipping Weight: 3 kg

Key Features

• Two analog input and two analog output channels for flexible configuration

• 16-bit resolution for high-precision analog processing

• Field-to-backplane isolation for enhanced protection

• Fast update time for real-time process response

• Compact module design suitable for SLC 500 racks

Applications

• Process control and monitoring

• Analog data acquisition in PLC systems

• Voltage signal interfacing in automation equipment

• Closed-loop feedback and proportional control applications