Description:

The Allen-Bradley 1794-IA16 is a FLEX I/O 16-point digital input module designed to interface 120V AC field devices with distributed control systems. It provides reliable AC input monitoring for integration into ControlLogix, CompactLogix, and other Logix-based platforms through FLEX I/O adapters. Commonly installed in machine-mounted I/O panels, production lines, material handling systems, and process control applications, this module supports flexible and scalable remote I/O architecture. Maintenance teams and system integrators use this module for system expansion, replacement of failed input cards, retrofit projects, and maintaining FLEX I/O automation systems. 

Applications:

The 1794-IA16 digital input module is used to receive 120V AC signals from pushbuttons, selector switches, limit switches, and relay contacts in distributed I/O systems. It is widely applied in manufacturing facilities, conveyor systems, water and wastewater treatment plants, and OEM machinery where dependable AC signal monitoring and modular I/O configuration are required.

Technical Specifications:

• Manufacturer Part Number (MPN): 1794-IA16
• Brand: Allen-Bradley
• Product Type: Digital Input Module
• I/O Platform: FLEX I/O
• Number of Inputs: 16 AC inputs
• Input Voltage: 120V AC
• Input Voltage Range: 79–132V AC (47–63 Hz)
• Input Type: Sourcing AC input
• Isolation: Channel-to-backplane isolation
• Mounting: DIN rail (with FLEX I/O terminal base)
• Operating Temperature: 0 to 55°C (32 to 131°F)

Common Replacements:

• Allen-Bradley 1794-IB16
• Allen-Bradley 1794-IA8
• Allen-Bradley 1734-IA16