A-B 1792D-12BVT4D I O Module

Allen-Bradley 1792D-12BVT4D ArmorBlock MaXum I/O Combination Module

 

 

The Allen-Bradley 1792D-12BVT4D is a sealed ArmorBlock MaXum distributed I/O module (not a rack module). It is a DeviceNet-based remote I/O block that provides both digital inputs and outputs in one compact field-mounted unit.

It is designed for machine-level installation directly on equipment, without needing a control cabinet.

Key Specifications

• Model: 1792D-12BVT4D
• Brand: Allen-Bradley (Rockwell Automation)
• Series: ArmorBlock MaXum (1792D series)
• Type: Distributed / Remote I/O Block
• Communication: DeviceNet network
• Input Channels: 12 × 24V DC digital inputs (sink/source)
• Output Channels: 4 × 24V DC sourcing outputs
• Output Current: up to ~0.5–2A per point (depending configuration)
• Connector Type: M12 sealed industrial connectors
• Protection Rating: Fully sealed (washdown / harsh environment ready)
• Diagnostics: Short-circuit, open-wire, load detection
• Mounting: Machine-mounted (no DIN rail required)

(Source: Rockwell Automation installation documentation and distributor data)

What it does (simple explanation)

PLC (ControlLogix / SLC / etc.)
↓
DeviceNet Network
↓
1792D ArmorBlock I/O Block
↓
Sensors & Actuators on machine

It collects sensor signals and controls outputs directly at the machine, reducing wiring back to the control cabinet.

Main Functions

• Reads 12 digital input signals from sensors/switches
• Provides 4 digital outputs for actuators/relays
• Communicates over DeviceNet fieldbus
• Performs local diagnostics at I/O point level
• Reduces cabinet wiring and installation cost
• Enables distributed control architecture

Key Features

• Fully sealed industrial housing (IP67-class typical design)
• Machine-mounted “on-the-field” I/O solution
• Built-in DeviceNet communication interface
• M12 quick-connect wiring system
• Point-level diagnostics (very useful for troubleshooting)
• Supports sink/source input flexibility
• High resistance to vibration, dust, moisture

Applications

• Automotive production lines
• Packaging machinery
• Assembly robots
• Conveyor systems
• Welding and stamping equipment
• Harsh industrial environments