Description

Allen Bradley 1746-IB16 DC Input Programmable Controller

The Allen Bradley 1746-IB16 is a 16-point digital input module engineered specifically for the SLC 500 automation platform, serving as the critical link between industrial sensors and programmable controllers (such as the Allen Bradley 1747-L541). This module converts discrete, on/off signals from devices like limit switches, proximity sensors, photoeyes, and pushbuttons into digital data that the controller can process—enabling real-time monitoring of equipment status and process conditions. For plant engineers and system integrators, the Allen Bradley 1746-IB16 delivers the reliability and flexibility needed to collect accurate sensor data in harsh industrial environments, making it a cornerstone of automation setups in manufacturing, automotive, and material handling.

In material handling systems—such as warehouse conveyor networks—the Allen Bradley 1746-IB16 interfaces with photoeye sensors to detect package presence and alignment. Its noise rejection capabilities prevent false triggers from conveyor motor interference, ensuring packages are routed correctly to their destinations. For food and beverage processors, the module’s ability to operate in temperature ranges from -10°C to 55°C makes it ideal for cold storage facilities, where it monitors the position of freezer door switches and conveyor stop gates. Across all these industrial automation use cases, the Allen Bradley 1746-IB16 enhances process reliability by ensuring accurate, consistent sensor data collection—reducing unplanned downtime caused by false inputs or missed sensor signals.

Compatible and Related Models

• Allen Bradley 1747-L541: SLC 500 5/04 controller that processes data from the 1746-IB16, enabling complex logic and sequence control.
• Allen Bradley 1746-OB32: 32-point solid-state output module that pairs with the 1746-IB16 to create closed-loop control (e.g., activating a conveyor based on sensor input).
• Allen Bradley 1746-OW16: 16-point relay output module for heavier loads (up to 2A), complementing the 1746-IB16 in systems with mixed digital I/O needs.
• Allen Bradley 1746-P1: 120V AC power supply that delivers backplane power to the 1746-IB16 and other SLC 500 modules in the chassis.
• Allen Bradley 1746-A7: 7-slot SLC 500 chassis that houses the 1746-IB16 alongside controllers and output modules in compact automation systems.
• Allen Bradley RSLogix 500: Programming software used to configure the 1746-IB16’s input mapping and monitor channel status in real time.
• Allen Bradley 1746-TB3: Terminal block extender for the 1746-IB16, simplifying wiring in tight chassis or when reconfiguring sensor connections.
• Allen Bradley 1746-IB32: 32-point digital input module for larger systems, offering double the channel count of the 1746-IB16 for high-density sensing applications.

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