Product Summary
The 1746-IN16 is a Rockwell Automation SLC 500 digital input module. It provides sixteen sinking channels for 24VAC or 24VDC signals. This module occupies a single slot in any 1746 chassis. It offers reliable signal acquisition for industrial control systems. Engineers trust it for general-purpose discrete input applications.
Product Procurement & Buyer Guide
Selecting the Right Input Module
The 1746-IN16 provides sixteen sinking inputs for mixed AC/DC applications. This flexibility reduces the need for separate modules. It operates reliably with a voltage range of 10-30 VAC or VDC. This module handles both signal types with a single unit. It simplifies your inventory and reduces system complexity.
Key Technical Specifications for Engineers
This module draws only 0.085 Amps from the 5V backplane. Its nominal input current is 8 mA per channel. Each point consumes just 0.35 Watts of power. The total module power dissipation is only 6 Watts. These low power requirements keep your chassis cool.
Understanding Signal Delay Characteristics
The 1746-IN16 offers different delays for AC and DC signals. For DC voltage, the signal delay is exactly 15 milliseconds. For AC voltage, the signal delay is 25 milliseconds. This difference is critical for high-speed sorting applications. Always match your scan time to the slower AC delay.
Installation and Chassis Compatibility
This module mounts directly into any SLC 500 chassis. It connects via the integrated male bus connectors. You can install it in the local processor chassis. It also works perfectly in an expansion rack. This design allows for flexible system layout and expansion.
Wiring and Field Connections
The 1746-IN16 uses standard I/O connection cables. You will need part number 1746-HT or 1746-HCA. These cables provide secure connections to field devices. The module supports sinking input wiring configurations. This wiring method is common for 24V sensor networks.
Visual Troubleshooting with LED Indicators
Each of the sixteen channels has a dedicated LED indicator. These LEDs show the active power state for each point. They provide immediate visual feedback for troubleshooting. You can quickly confirm if a field signal reaches the module. This feature significantly reduces downtime during startup.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1746-IN16 SLC 500 Input Module
- Product is securely packaged in an anti-static bag
- Packing materials protect against electrostatic discharge damage
- Express delivery shipping is available via FedEx, UPS, and DHL
