Allen Bradley | 1746-NIO4V | SLC 500 Analog Combination Input/Output Module

Product Description

The Allen Bradley 1746-NIO4V is a combination analog I/O module for the SLC 500 series, offering two differential input channels and two non-isolated voltage output channels. It provides flexible signal handling for both voltage and current inputs, with high-resolution conversion for precise measurement and control. The module is designed for rack mounting and integrates seamlessly into SLC 500 systems, making it suitable for a wide range of industrial automation applications.

Technical Specifications

• Manufacturer Rockwell Automation

• Brand Allen Bradley

• Product Line SLC 500 Series

• Product Type Analog Combination I/O Module

• Part Number 1746-NIO4V

• Weight 0.75 lbs (0.34 kg)

• Inputs 2 differential channels (voltage or current selectable)

• Outputs 2 non-isolated voltage outputs

• Input Voltage Range –10 to +10 V DC

• Input Current Range –20 to +20 mA

• Output Voltage Range –10 to +10 V DC

• Input Resolution 16-bit

• Output Resolution 14-bit

• Bandwidth 10 Hz

• Update Time 512 µs

• Step Response 60 ms (input), 2.5 ms (output)

• Input Accuracy ±0.642% at –20 to +20 mA; ±0.504% at –10 to +10 V DC

• Maximum Overvoltage Protection 220 V AC/DC

• Isolation 500 V DC (field wiring to backplane)

• Backplane Current Load

• 55 mA @ 5 V DC

• 115 mA @ 24 V DC

• Mounting Rack mount

• UNSPSC 32151705

Application Scenarios

• Industrial automation requiring both analog input and output in one module

• Process control systems with voltage and current signal monitoring

• Legacy SLC 500 installations needing flexible analog I/O capability

FAQ

Q: How many channels does the 1746-NIO4V provide?  A: Two differential inputs and two non-isolated voltage outputs.

Q: What resolution is supported?  A: 16-bit input resolution and 14-bit output resolution.

Q: What is the maximum overvoltage protection?  A: Up to 220 V AC/DC.

Comparable Models

• 1746-NIO4V: 2 inputs + 2 outputs (this model)

• 1746-NI4: 4-channel analog input module

• 1746-NO4V: 4-channel analog output module