Allen-Bradley 1794-IB16XOB16P Flex I/O Input/Output Module Overview

Product Introduction

When your control system demands reliable signal handling between field devices and the PLC, the Allen-Bradley 1794-IB16XOB16P Flex I/O Input/Output Module delivers a robust solution. This module combines 16-point 24VDC sinking input and 16-point 24VDC sourcing output in a single unit, simplifying wiring and reducing panel space. Part of the Rockwell Automation Flex I/O family, the 1794-IB16XOB16P is designed for distributed I/O architectures where flexibility and durability are critical.

Technical Specifications Breakdown

The 1794-IB16XOB16P operates on a 24V DC power supply and features a total of 32 points (16 input, 16 output). Its maximum wattage rating is 125 Watts, ensuring sufficient power handling for industrial loads. The module is electronically protected against overcurrent and short circuits, enhancing system reliability. With an IP20 NEMA rating, it is suitable for clean, dry environments like control cabinets. The unit weighs only 0.25 lbs (0.11 kg) and supports DIN-rail or panel mounting, making installation straightforward.

Industry Applications

In discrete manufacturing, the 1794-IB16XOB16P excels at interfacing with sensors and actuators. For example, in a packaging line, the sinking inputs can monitor 16 proximity sensors while the sourcing outputs drive 16 solenoid valves. This combination reduces the need for separate input and output modules, cutting system cost and complexity. In material handling systems, the module's electronic protection prevents damage from wiring faults, minimizing downtime.

Installation & Setup Guidance

Mount the 1794-IB16XOB16P on a DIN rail or panel using the provided slots. Connect 24V DC power to the module's power terminals. Wire sinking input devices (e.g., NPN sensors) to the input terminals and sourcing output devices (e.g., relays) to the output terminals. Ensure proper grounding per local codes. After wiring, configure the module's address using the rotary switches on the front panel. The module communicates with the PLC via a standard network card over Ethernet LAN, using TCP/IP at 10 Mbit/m.

Compatibility & Integration

The 1794-IB16XOB16P integrates seamlessly with Allen-Bradley ControlLogix, CompactLogix, and SLC 500 controllers through the Flex I/O backplane. It requires only a standard network card to access data from the PLC master device. The module supports 2-wire and 4-wire sensor configurations, as well as single-ended and differential input modes. For system expansion, multiple 1794 modules can be mounted on the same DIN rail, sharing the same power supply.

Selection Guide & Purchasing Advice

Before ordering the 1794-IB16XOB16P, verify that your system uses 24V DC logic and that the input/output points match your application needs. The module is best suited for applications requiring both sinking inputs and sourcing outputs in a single unit. For complete technical specifications and current availability, contact BluePLC Industrial. Our team can help confirm compatibility with your existing PLC and recommend any necessary accessories.