The Allen-Bradley 1746-NIO4I is a combination analog I/O module designed for the SLC 500 series of programmable logic controllers (PLCs). It offers both input and output channels, making it versatile for various industrial automation applications.

Technical Specifications

I/O Channels

• 4 analog input channels
• 4 analog current output channels

Input Channels

• Type: Current input
• Range: -20 to +20 mA
• Resolution: 1.22 mA/LSB
• Impedance: 250 ohms

Output Channels

• Type: Current output
• Range: Configurable
• ADC: Sigma-Delta ADC
• Resolution: 16 bits, +/-1 LSB
• Repeatability: 0.01%
• Non-Linearity: 0.01%

Power Supply

The 1746-NIO4I operates with a 5 VDC power supply from the PLC backplane.

Environmental Suitability

The 1746-NIO4I is designed for industrial environments.

Key Features

• Combination Module: It provides both input and output capabilities in a single module.
• High Resolution: The module offers accurate measurement and control.
• Flexible Configuration: You can configure output ranges for various applications.
• Reliable Performance: It is built for industrial environments.
• Compact Design: The module saves space in the control panel.

Applications

The 1746-NIO4I is commonly used in applications that require:

• Monitoring and controlling analog signals
• Process control
• Temperature control
• Pressure control
• Flow control