The Allen-Bradley 1771-A1B is a digital input/output (I/O) interface board designed for use in PLC (Programmable Logic Controller) systems from Rockwell Automation. It provides a cost-effective solution for expanding your system’s digital I/O capabilities.

Key Features

• 16 Digital Inputs: Offers easy connection of various sensors and switches to your PLC.
• 16 Digital Outputs: Provides control for actuators, relays, and other digital devices.
• Compact Design: Saves valuable space in your control cabinet.
• Easy Installation: Simplifies system setup and reduces wiring complexity.
• Reliable Performance: Ensures stable operation for your industrial application.

Technical Specifications

• Input Voltage Range: Typically 12VDC to 24VDC (depending on model)
• Output Voltage Range: Typically matches input voltage range
• Current Sinking/Sourcing: Typically 200mA per channel
• Isolation Voltage: Protects against electrical noise and ground loops

Applications

• Industrial automation systems
• Machine control
• Process control
• Building automation