Allen-Bradley 1746-ITV16 SLC 500 Fast Response Discrete Input Module

Product Introduction

When high-frequency switching applications demand rapid signal acquisition, the Allen-Bradley 1746-ITV16 delivers. This SLC 500 fast response discrete input module accepts a nominal input voltage of 24VDC with an operating voltage range of 10-30 VDC. It supports source wiring configuration and is designed for use with signaling devices that operate with high frequency, binary, or ON/OFF switching such as encoders, totalizers, data loggers, counters, and similar devices. The module also excels in position monitoring and control of conveyors.

Technical Specifications Breakdown

The 1746-ITV16 features sixteen (16) fast response channels arranged in a single group without individual channel isolation. Key electrical parameters include:

Input Voltage Range: 10-30 VDC (nominal 24VDC)

Backplane Current Draw: 0.085 A at 5VDC

Signal Delay: ON = 0.3 ms maximum; OFF = 0.5 ms maximum

Off-State Voltage: 5VDC maximum

Off-State Current: 1.5 mA maximum

Nominal Input Current: 8 mA at 24VDC

Maximum Power Dissipation: 3.6 W

These specifications make the 1746-ITV16 suitable for time-critical applications requiring rapid response. The module includes filter circuitry and optical coupling for signal noise reduction.

Industry Applications

The 1746-ITV16 is ideal for high-speed counting and positioning tasks. In conveyor systems, it monitors encoder pulses to track product location with minimal delay. For totalizers and data loggers, the fast ON/OFF transition times (0.3 ms ON, 0.5 ms OFF) ensure accurate event capture even at high repetition rates. Compared to standard SLC 500 discrete input modules, the 1746-ITV16 offers significantly faster signal response, making it the preferred choice for applications where timing is critical.

Compatibility & Integration

The 1746-ITV16 is part of the Allen-Bradley SLC 500 family and is compatible with all modular and fixed SLC 500 processors. It receives and stores data in its data image table, accessible via Ladder Logic programming. The module uses a sharing-based hardware platform that includes various combinations of digital and analog I/O, saving cost and space. Input status is easily monitored through LED indicators on the front panel, simplifying troubleshooting.

Installation & Setup Guidance

The 1746-ITV16 comes with a removable terminal block for simplified wiring and maintenance convenience. When installing, ensure the source wiring configuration matches your field devices. The module operates in an environment with a temperature range of 0 to 60 °C and 5 to 95% noncondensing relative humidity. No special tools are required for mounting; simply insert the module into any available SLC 500 chassis slot.

Selection Guide & Purchasing Advice

Before purchasing the 1746-ITV16, verify that your application requires fast response discrete inputs and source wiring. This module is not isolated per channel, so consider noise immunity requirements. For complete technical specifications and current availability, contact BluePLC Industrial. We stock genuine Allen-Bradley modules and can help you select the right I/O for your SLC 500 system.