Allen-Bradley 1746-NI8 PLC Module | 16-Bit Resolution Analog Input Card

Description

Allen-Bradley 1746-NI8: 8-Channel Analog Input Module

Flexible Signal Acquisition

The Allen-Bradley 1746-NI8 handles eight analog inputs for your SLC 500 system. It accepts both voltage and current signals from various sensors. This 1746-NI8 module offers fast response and high accuracy. It fits in one slot and works with all SLC 500 controllers.

Key Technical Specifications

Brand: Allen-Bradley
Model: 1746-NI8
Type: 8-Channel Analog Input
Input Types: Voltage: ±10V, 0-10V, 0-5V, 1-5V / Current: 0-20mA, 4-20mA, ±20mA
Resolution: 16-bit
Update Time: 6 ms per channel
Filter Frequencies: 1, 2, 5, 10, 20, 50, 75 Hz
Input Impedance: 250 ohms (current), >1M ohm (voltage)
Isolation: 750V DC / 530V AC for 60s
Backplane Power: 5V DC, 200 mA / 24V DC, 100 mA
Common Mode Voltage: ±10V (±15V max)
Thermal Dissipation: 3.4 W
Operating Temp: 0 to 60°C (32 to 140°F)
Connector: 18-position removable terminal block
Wire Size: 14 AWG max (2 wires per terminal)

12 Month Warranty

We provide a full one-year warranty on this 1746-NI8 module. It covers any material or workmanship defects. We offer quick repair or replacement service. We ship worldwide using FedEx, UPS, and DHL.

Download Installation Guide

• Learn wiring for voltage and current inputs.
• Understand DIP switch configuration settings.
• Get programming examples for different signal types.
• Find troubleshooting steps for all eight channels.

Download SLC 500 Hardware Manual Here

Important Technical Questions

• How do I select voltage or current input?
  Use the DIP switches on the module. Each channel can be set independently for voltage or current.
• What controllers work with this module?
  It works with SLC 5/01 through SLC 5/05. SLC 5/01 supports Class 1 only; others support Class 1 and 3.
• Can I mix signal types on one module?
  Yes. Each channel is independent. You can have voltage on some channels and current on others.
• What is the maximum wire length?
  Keep wire impedance below 40 ohms for voltage signals and 250 ohms for current signals.
• Does it need special calibration?
  It features continuous autocalibration. No manual calibration is needed under normal conditions.