Allen-Bradley 1746-IA16 Digital Input Module

Manufacturer

Allen Bradley

Product Type

Digital Input Module

Product Line

SLC 500

Part Number

1746-IA16

UPC

662468067089

Weight

0.63 lbs (0.28 kg)

Heat Dissipation per Point

0.27 Watts

Minimum Module Heat Dissipation

0.425 Watts

Total Heat Dissipation

4.8 Watts

Removable Terminal Block

Included

Voltage Category

100/120V AC

Number of Inputs

16 Inputs

Operating Voltage Range

85-132V AC

Operating Frequency

47-63 Hz

Backplane Current Consumption at 5V DC

0.085 Amps

Max. Inrush Current

0.8 Amps

Max. Off-State Current

2 mA

The Allen Bradley 1746-IA16 module is a digital input device tailored for the SLC 500 series. It efficiently handles 16 inputs while being rated for a voltage range of 100/120V AC, making it appropriate for various control systems. The module produces a total heat dissipation of 4.8 watts, with a heat dissipation per input point calculated at 0.27 watts, and a minimum module heat dissipation of 0.425 watts.

This device operates within an input voltage range between 85 to 132V AC, allowing for flexibility in different electrical environments. It also functions effectively across a frequency range of 47 to 63 Hz. The backplane current consumption at 5V DC is rated at 0.085 amps, ensuring efficient power usage.

Additionally, the maximum inrush current for this module is specified at 0.8 amps, with a maximum off-state current of 2 mA, facilitating stable performance under various operating conditions. Included with the module is a removable terminal block, enhancing installation convenience and maintenance. Overall, this digital input module is structured to provide reliable data management within the SLC 500 framework.

1. How does the AB 1746-IA16 optimize discrete signal acquisition for high-reliability SLC 500 control architectures?

The AB 1746-IA16 is a 16-channel AC digital input module that efficiently captures field device status signals and transfers them to the SLC 500 processor for real-time control and monitoring.

2. Why is the AB 1746-IA16 particularly well-suited for interfacing with industrial AC-powered sensing and switching devices?

The AB 1746-IA16 is designed to accept AC input signals from devices such as limit switches, push buttons, selector switches, and auxiliary contacts, providing dependable signal recognition in industrial environments.

3. What diagnostic methodologies can be employed to evaluate the operational integrity of the AB 1746-IA16 during system commissioning or maintenance?

Engineers can verify channel status indicators, inspect field wiring continuity, monitor input-state transitions through controller diagnostics, and analyze signal response behavior to assess the performance of the AB 1746-IA16.

4. How does the AB 1746-IA16 contribute to enhanced process visibility and deterministic control within automated manufacturing systems?

By delivering accurate and timely acquisition of discrete AC input signals, the AB 1746-IA16 enables controllers to respond effectively to field events, thereby improving process coordination and operational efficiency.

5. Which technical parameters should be scrutinized before integrating the AB 1746-IA16 into an existing SLC 500 installation?

Users should evaluate input voltage compatibility, current requirements, backplane capacity, wiring configuration, environmental specifications, and overall system architecture to ensure optimal deployment of the AB 1746-IA16.

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