Allen Bradley 1794-OB16 Output Module 1794-0B16

The Allen Bradley 1794-OB16 is a 16-point digital output module, designed for use in FLEX I/O distributed control systems. It provides high-speed switching for controlling actuators, solenoids, relays, and indicator lights in industrial automation applications. The compact FLEX I/O design allows for modular expansion, space-saving installation, and seamless integration with Allen Bradley PLCs.

Technical Specifications

  • Manufacturer: Allen Bradley (Rockwell Automation)
  • Model: 1794-OB16 (Alternate SKU – 1794-0B16)
  • Series: FLEX I/O
  • Number of Outputs: 16
  • Output Type: Digital (Solid State)
  • Output Voltage: 24V DC (Nominal), 19.2V – 31.2V DC (Operating Range)
  • Current Rating per Output: 0.5A per channel (max)
  • Total Module Current Load: 8A (max)
  • Output Signal Delay: 0.1 ms (On) / 1.0 ms (Off)
  • Isolation: 500V DC between outputs and system
  • Mounting Type: DIN Rail (FLEX I/O system)
  • Communication Protocol: Requires a 1794 series adapter for network communication
  • Operating Temperature: 0°C to 55°C (32°F to 131°F)
  • Certifications: UL, cUL, CE, ATEX, IECEx

Key Features

  • 16-point digital output control for distributed automation applications
  • Compact and modular FLEX I/O design for efficient system expansion
  • Fast switching capability for precise control of industrial devices
  • Low power consumption with high-efficiency operation
  • Supports isolated outputs to enhance system reliability
  • Compatible with various network adapters (EtherNet/IP, ControlNet, DeviceNet)
  • Rugged design for use in industrial environments

Compatible Allen Bradley Components

  • 1794 Series FLEX I/O Adapters (1794-AENT, 1794-ACN15, 1794-ADN, etc.)
  • Allen Bradley ControlLogix and CompactLogix PLCs
  • FactoryTalk View for monitoring and control
  • Allen Bradley FLEX I/O Power Supplies

Industry Applications

  • Manufacturing process automation
  • Material handling and conveyor systems
  • Pneumatic and hydraulic system control
  • Conveyor and machine automation
  • Food, beverage, and pharmaceutical processing

Installation & Operational Notes

  • Requires a 1794 network adapter for proper operation in a distributed I/O system
  • Mounts on a DIN rail within a FLEX I/O chassis
  • Ensure correct wiring and voltage levels to prevent system faults
  • Regular maintenance recommended to ensure long-term reliability
  • Supports use in hazardous locations (ATEX, IECEx-certified environments)

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