Allen-Bradley 1769-IQ16 – 16-Point 24VDC Sink/Source Digital Input Module | CompactLogix 1769 Series
Engineering Background
The 1769-IQ16 is a core discrete input module within Rockwell Automation’s CompactLogix 1769 Compact I/O platform. Designed for demanding industrial environments, it provides 16 channels of 24VDC digital input with both sink and source wiring compatibility, enabling seamless integration into a wide range of field device configurations. As part of the 1769 Series, it connects directly to CompactLogix L1x, L2x, L3x, and compatible MicroLogix 1500 controllers via the 1769 bus.
Product Positioning
Targeted at automation engineers and system integrators who require a reliable, high-density discrete input solution for machine control, process automation, and factory floor applications. The 1769-IQ16 is the industry benchmark for 24VDC digital input in the CompactLogix ecosystem, offering proven field performance across automotive, food & beverage, material handling, and OEM machinery sectors.
Complete Technical Specifications
- Catalog Number: 1769-IQ16
- Series: Allen-Bradley CompactLogix 1769 Compact I/O
- Manufacturer: Rockwell Automation / Allen-Bradley
- Module Type: 16-Point Digital (Discrete) Input
- Input Voltage: 24VDC (Nominal)
- Input Voltage Range: 10–31.2VDC
- Input Current (ON State): 6.0 mA @ 24VDC (typical)
- Wiring Type: Sink (NPN) / Source (PNP) – selectable per group
- Number of Inputs: 16 (2 groups of 8)
- Input Filter Time: 1 ms (hardware); configurable via RSLogix 5000 / Studio 5000
- Backplane Current Draw: 100 mA @ 5VDC; 0 mA @ 24VDC
- Power Dissipation: 0.5 W (max)
- Operating Temperature: 0°C to +60°C (32°F to 140°F)
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5–95% (non-condensing)
- Vibration: IEC 68-2-6 compliant
- Shock: IEC 68-2-27 compliant
- Enclosure Rating: Open type (IP20 equivalent)
- Certifications: UL, CE, CSA, C-Tick
- Dimensions (H × W × D): 118 × 35 × 87 mm (approx.)
- Weight: ~180 g
- Wiring: Removable terminal block, 22–14 AWG
- LED Indicators: Per-channel input status LEDs
- Bus Interface: 1769 Compact I/O side-mount bus
Proven Application Environments
- Automotive Assembly Lines: Proximity sensor and limit switch interfacing for robotic cells and conveyor control
- Food & Beverage Processing: Pushbutton, selector switch, and photoelectric sensor inputs in washdown-adjacent panels
- Material Handling & Packaging: High-speed discrete signal acquisition for sorters, palletizers, and labeling machines
- OEM Machine Building: Compact panel design with high I/O density for space-constrained enclosures
- Water/Wastewater Treatment: Float switch and level sensor monitoring in remote pump stations
- Building Automation: HVAC control panel integration with CompactLogix L2x controllers
Engineering Advantages
- Dual Sink/Source Flexibility: Supports both NPN and PNP field devices within the same module, reducing BOM complexity
- High Channel Density: 16 inputs in a single 35mm-wide slot minimizes panel footprint
- Configurable Input Filtering: Software-adjustable filter times via Studio 5000 Logix Designer for noise immunity tuning
- Per-Channel LED Diagnostics: Instant visual status for rapid field troubleshooting without a laptop
- Hot-Swap Capable: Removable terminal block allows wiring pre-termination and module replacement without rewiring
- Seamless EtherNet/IP Integration: Full tag-based programming in Studio 5000 with automatic I/O tree population
- Wide Operating Temperature: 0–60°C rated for standard industrial panel environments
System Architecture & Signal Flow
The 1769-IQ16 mounts directly to the right of a CompactLogix controller (e.g., 1769-L30ER) or an expansion adapter (1769-AENTR) via the 1769 side-bus connector. Field devices wire to the 20-pin removable terminal block. Each input group (Group 0: channels 0–7; Group 1: channels 8–15) shares a common terminal, allowing independent sink or source configuration per group. Input signals are conditioned through optical isolation and hardware filtering before being mapped to controller input tags (e.g., Local:1:I.Data.0) in the Studio 5000 I/O tree. Backplane communication occurs at the 1769 bus rate, with data updated every controller scan cycle.
Sourcing & Quality Verification
- Authenticity: All units sourced from authorized distributors or verified surplus channels; counterfeit screening performed on every batch
- Condition Options: New-in-box (NIB), Surplus New (unused, original packaging), and Tested Refurbished available — condition specified at order
- Functional Testing: Each module undergoes power-on and I/O channel verification prior to shipment
- Traceability: Date codes and lot numbers documented; available upon request for regulated industries
- Packaging: ESD-safe anti-static bags, foam-lined cartons; export-compliant packaging for international orders
Procurement Process
- Confirm Part Number: Verify catalog number 1769-IQ16 and series revision against your BOM or existing system
- Request Quote: Contact [email protected] or call +0086 19859288691 for volume pricing, lead time, and condition confirmation
- Order & Payment: Secure checkout via Shopify; T/T wire transfer and major credit cards accepted
- Shipping: DHL / FedEx / UPS express worldwide; same-day dispatch for in-stock orders placed before 14:00 CST
- Documentation: Commercial invoice, packing list, and test report provided; CO and Form E available on request
Technical FAQ
Q: Is the 1769-IQ16 compatible with MicroLogix 1500?
A: Yes. The 1769-IQ16 is compatible with MicroLogix 1500 (1764-LRP/LSP) systems using the 1769 Compact I/O bus, in addition to all CompactLogix L1x–L3x controllers.
Q: Can I mix sink and source wiring on the same module?
A: Yes, but only on a per-group basis. Group 0 (Ch 0–7) and Group 1 (Ch 8–15) each have an independent common terminal, allowing one group to be wired sink and the other source.
Q: What is the maximum cable length for field wiring?
A: Rockwell Automation recommends a maximum of 30 m (100 ft) for unshielded cable in standard industrial environments. Shielded cable is recommended in high-noise environments.
Q: Does this module support fast input (high-speed counter) functionality?
A: No. The 1769-IQ16 is a standard discrete input module. For high-speed counter or encoder input, use the 1769-HSC module.
Q: What firmware/software version is required?
A: Studio 5000 Logix Designer v21.00 or later is recommended. RSLogix 5000 v16.00+ is also supported for legacy systems.
Q: Is a replacement terminal block available separately?
A: Yes. The replacement terminal block catalog number is 1769-RTBN20. It allows pre-wiring before module installation.
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