Allen-Bradley 1790-0V16X - 16-Point Sinking DC Output Module for DeviceNet

Simplify your distributed I/O connections with the Allen-Bradley 1790-0V16X. This is a compact, 16-channel sinking digital output module for the ArmorBlock family on DeviceNet networks. It provides a reliable and cost-effective way to control loads like solenoids, indicators, and relays directly from your network. The module features simple wiring, clear status indicators, and robust photocoupler isolation for stable operation in industrial environments.

Why Choose This I/O Module?

• Easy Network Integration: Connects directly to a DeviceNet network, reducing wiring from the main control cabinet.
• High-Density Output: Controls 16 devices from one compact, space-saving module.
• Clear Visual Feedback: Each of the 16 outputs has its own green LED status light for easy troubleshooting.
• Robust and Protected: Built with 1250V isolation to protect your network logic from electrical noise on the load side.

Complete Technical Specifications

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

Full Model Number: 1790-0V16X

Module Type: 16-Point Sinking DC Output Module, Non-isolated

Output Configuration: 16 Sinking (NPN) outputs

Output Rating: 0.5 A per point, 4.0 A per common group

Load Voltage: 10V to 28.8V DC (24V DC Nominal)

Switching Speed: ON Delay: 0.5 ms max, OFF Delay: 1.0 ms max

Power Supply (Field): 24V DC (10V - 28.8V range)

Power Supply (Network): 24V DC via DeviceNet (11V - 28.8V range)

Isolation: 1250V AC RMS (Photocoupler isolation between I/O and logic)

Wiring Connection: 37-pin D-shell connector

Common Groups: 8 points per common (2 groups total: COM0/COM2 & COM1/COM3)

Indicator Lights: 16 Green LEDs (one per output)

Installation & Wiring Guide

The 1790-0V16X mounts on a DIN rail. For sinking outputs, connect your Field Power 24V DC positive (+) to terminals COM0 and COM2. Connect the Field Power negative (-) or GND to terminals COM1 and COM3. Connect your loads (like a solenoid valve) between the output terminal and the Field Power positive (+). Always ensure the total current for each common group does not exceed 4.0 Amps.

Package & Warranty

What's in the Box: 1 x Allen-Bradley 1790-0V16X Sinking Output Module.

Our Promise: We provide a reliable 12-month warranty on this product for your peace of mind.

Fast Shipping Options

We deliver quickly using reliable couriers: FedEx, UPS, and DHL.

Frequently Asked Questions (FAQ)

What does "sinking output" mean?

A sinking output (also called NPN) acts like a switch to ground. When active, it connects the load wire to the negative side (GND) of the power supply to complete the circuit and turn the device on.

Can I connect an inductive load like a solenoid?

Yes, but for best reliability and to protect the module, you should use a flyback diode across the solenoid coil. This absorbs the voltage spike created when the output turns off.

How do I set the DeviceNet node address?

This module uses rotary switches on its side to set the unique DeviceNet node address (MAC ID) and communication baud rate (125K, 250K, 500K).

What happens if I exceed the 4A per common current limit?

Exceeding the current limit may cause the module to overheat, damage internal components, or shut down. Always calculate your total load current per common group during design.

Is this module suitable for outdoor use?

The standard 1790-0V16X has a IP20 rating, meaning it is for indoor use only. For harsh environments, you would need a higher IP67 rated module from the ArmorBlock MaXum series.

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