The Allen-Bradley 1769-IQ16F is a high-speed, 16-channel digital DC input module designed for the CompactLogix™ and MicroLogix™ 1500 systems. Operating at 24V DC, this "Fast" (F) series module is specifically engineered for applications requiring rapid signal detection, such as high-speed sensing, small-part detection on conveyors, and pulse counting that exceeds the capabilities of standard digital modules. With its adjustable digital filters and low hardware delay, it provides the responsiveness needed for precision industrial automation.
Technical Specifications
Manufacturer:Allen-Bradley (Rockwell Automation)
Product Line:CompactLogix / MicroLogix 1500
Part Number:1769-IQ16F
Number of Inputs:16 (Two isolated groups of 8)
Voltage Category:24V DC (Sink/Source)
Operating Voltage Range:10–30V DC (at 30°C) / 10–26.4V DC (at 60°C)
Hardware Delay (Typical):100 µs (OFF to ON) / 250 µs (ON to OFF)
Selectable Digital Filter:0 ms, 100 µs, 500 µs, 1 ms, 2 ms
Bus Current Draw:110 mA at 5V DC
Power Supply Distance Rating:8 modules
Heat Dissipation:3.55 Watts (Total with all points energized)
Isolation:75V DC working voltage (Verified at 1200V AC or 1697V DC for 1 s)
Nominal Impedance:3 kΩ
Key Features
Ultra-Fast Response Times:The "F" designation signifies a "Fast" input module. With a typical hardware delay of only 100 microseconds, it captures transient signals that standard 24V DC modules might miss.
Flexible Sink/Source Configuration:The module can be wired in either sinking or sourcing configurations. This versatility allows it to interface with a wide variety of field devices, including NPN and PNP sensors.
Dual Isolated Groups:The 16 inputs are divided into two groups (0–7 and 8–15). This isolation allows for the use of two different power supplies or different wiring logic (one group sinking, one group sourcing) on a single module.
Customizable Digital Filtering:Users can programmatically adjust the input filter time to balance between extreme speed and the need to filter out electrical noise or contact bounce.
IEC Type 1+ Compatibility:Ensures high-quality signal sensing and compatibility with standard industrial sensors according to international standards.
