Allen-Bradley | 1746-NIO4V | SLC 500

Product Description: Allen-Bradley 1746-NIO4V

The Allen-Bradley 1746-NIO4V is a mixed analog input/output module designed for the SLC 500 controller platform. It provides two voltage input channels and two voltage output channels, making it ideal for compact systems requiring both monitoring and control of analog signals. With high resolution and reliable signal isolation, this module delivers accurate performance for a wide range of process control applications.

Key Features

• 2 analog voltage input channels
• 2 analog voltage output channels
• Inputs and outputs support 0 to +10V or ±10V ranges
• 13-bit resolution for both input and output
• Channel-to-backplane isolation for enhanced noise immunity
• LED indicators for status diagnostics
• Compact design fits in a single I/O slot

Technical Specifications

• Number of Channels: 2 Inputs + 2 Outputs
• Input Voltage Range: 0 to +10V or -10V to +10V
• Output Voltage Range: 0 to +10V or -10V to +10V
• Resolution: 13 bits (1 part in 8192)
• Input Impedance: ≥10 kΩ
• Output Load: ≥2 kΩ
• Accuracy: ±0.5% of full scale
• Backplane Current Draw: 100 mA at 5V DC, 190 mA at 24V DC
• Isolation: 1500V RMS (channel-to-backplane)
• Operating Temperature: 0°C to 60°C
• Module Width: 1 slot

Application Areas

• Combined analog signal monitoring and control
• Compact process control systems
• Environmental monitoring and regulation
• Temperature and pressure signal handling
• Automation systems requiring both input feedback and output actuation

Advantages

• Dual I/O capability in one module saves space and reduces cost
• High accuracy and resolution enable precise process control
• Ideal for systems with limited I/O slots
• Simplified wiring and integration within the SLC 500 architecture
• Robust isolation protects PLC and connected equipment