
Allen-Bradley 1762-IQ16 MicroLogix 16-Point DC Input Module
The Allen-Bradley 1762-IQ16 discrete input module expands your MicroLogix system’s capabilities. This module provides sixteen reliable 24VDC input channels. It accepts both sinking and sourcing field devices. This flexibility simplifies your system design and wiring.
Why Choose the 1762-IQ16 for Your System?
The 1762-IQ16 integrates seamlessly with MicroLogix 1100, 1200, and 1400 controllers. You can use up to seven modules with a MicroLogix 1400. This scalability allows for significant system growth. The module’s compact size saves valuable panel space. Its IP20 enclosure rating suits clean, dry industrial environments.
Key Technical Specifications at a Glance
- Inputs: Sixteen (16) sink/source channels.
- Voltage Range: 10 to 30VDC; nominal 24VDC.
- Signal Delay: 8.0 ms for both ON and OFF transitions.
- On-State Current: 8.0 mA nominal at 24VDC.
- Dimensions: 3.54 x 1.59 x 3.43 inches (HxWxD).
- Mounting: DIN rail or panel mount options.


Installation and Wiring Guide
First, mount the module on a DIN rail or directly to a panel. Then, connect the module to your MicroLogix controller using the bus connector. The module uses bit positions 0 to 15 for input data. A finger-safe cover protects the terminal block wiring. Always remove all power before performing any maintenance.
Understanding Sink and Source Inputs
This module supports both sinking and sourcing input types. A sinking input connects to the negative side of the field device. A sourcing input connects to the positive side. This dual compatibility allows you to connect various sensor types. You do not need separate modules for different wiring configurations.
Troubleshooting and Maintenance Protocols
The module has a single status LED for power indication. Always maintain a safe distance during troubleshooting. Check the controller program for any recent changes. Wire all safety circuits in series with the master relay. Install the module in a non-hazardous, dry location only.

Procurement and Compatibility Check
This module is a direct expansion for MicroLogix 1100, 1200, and 1400 PLCs. It requires 24VDC input power and communicates via the 1762 bus. The operating voltage range is 10 to 30VDC. Ensure your system’s power supply meets these requirements. This module guarantees reliable signal acquisition for your process.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1762-IQ16 Discrete Input Module
- One (1) Finger-Safe Terminal Block Cover
- One (1) Removable Terminal Block
- Installation instructions are included.
- Express delivery is available via FedEx, UPS, and DHL.