Allen-Bradley 1790-T16BV0X - 16-Channel Universal Input Module with Terminal Block

Simplify your sensor integration with the Allen-Bradley 1790-T16BV0X. This flexible ArmorBlock module provides 16 universal digital inputs for your DeviceNet network. Its key feature is accepting both sinking (NPN) and sourcing (PNP) sensor signals on any channel without hardware changes. With easy screw-terminal wiring and clear status LEDs, it's an ideal solution for gathering signals from pushbuttons, proximity switches, and limit switches in a distributed I/O system.

Module Highlights

• Maximum Sensor Compatibility: Universal inputs work with both PNP and NPN sensors, eliminating the need to stock different module types and reducing design complexity.
• High-Density & Space-Saving: Monitors 16 sensor points from a single, compact module, maximizing your network I/O capacity.
• Easy Installation & Wiring: Features a convenient screw terminal block for quick, tool-free connections without special cables or connectors.
• Excellent Diagnostics: 16 individual green LEDs provide immediate visual confirmation of each input's status, speeding up commissioning and troubleshooting.

Complete Technical Specifications

Brand & Series: Allen-Bradley ArmorBlock (1790 Series)

Full Model Number: 1790-T16BV0X

Module Type: 16-Point Universal Digital Input Module

Input Configuration: 16 points, Sinking or Sourcing (Universal, Non-polarized)

Input Voltage Range: 9.6V to 28.8V DC (24V DC Nominal)

On-State Current: 8 mA maximum per channel @ 28.8V DC

Input Impedance: 4.8 kΩ (Nominal)

Common Groups: 8 points per common (2 independent groups)

Status Indicators: 16 individual Green LEDs (one per input channel)

DeviceNet Logic Power: 24V DC (11V - 28.8V range)

Electrical Isolation: 1250V AC RMS (Photocoupler isolation between field inputs and internal logic)

Wiring Connection: Screw Terminal Block (M3.0, maximum torque 7 lb-in)

Wire Type: Use copper or copper-clad aluminum conductors.

Installation & Wiring Guide

Mount the 1790-T16BV0X module on a DIN rail. Connect your 24V DC field power supply that will power your sensors. Wire your sensors (e.g., a 3-wire PNP proximity switch) directly to the terminal blocks: connect the sensor's signal wire to an input terminal, its power (+) to your 24V DC supply, and its common (-) to the module's corresponding common terminal. The universal design automatically detects the signal type. Each common group handles 8 inputs.

Package & Warranty

What's Included: 1 x Allen-Bradley 1790-T16BV0X Universal Input Module with terminal block.

Our Guarantee: This product comes with a reliable 12-month warranty.

Fast Shipping Service

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Frequently Asked Questions (FAQ)

How does a universal input work with different sensor types?

The input circuit is designed to detect current flow in either direction. It doesn't care if the signal wire is providing voltage (PNP/sourcing) or sinking to ground (NPN/sinking). You wire it the same way for both.

Do I need an external power supply for the sensors?

Yes. The 1790-T16BV0X module does not provide power to the sensors. You must provide a separate 24V DC field power supply to energize your connected switches and sensors.

What is the maximum cable length for sensors?

For reliable operation with 24V DC sensors, it's generally recommended to keep cable runs under 100 meters (shielded) to avoid voltage drop and noise interference. Use thicker gauge wire for longer distances.

How do I configure it on the DeviceNet network?

Set the module's unique Node Address (0-63) and Baud Rate (125K, 250K, 500K) using the rotary switches on its side. The input data is automatically mapped into the scanner's input image table.

Can I mix PNP and NPN sensors on the same module?

Absolutely. That's the main advantage. You can have some channels connected to PNP sensors and others to NPN sensors on the same 1790-T16BV0X module. Just ensure your field power wiring is correct for each sensor.

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