Product Details
Product Description
The Allen Bradley FLEX I/O 1794-IB16 module is a compact 16‑point DC digital input unit designed for distributed control applications. It supports sinking inputs and provides reliable signal monitoring with integrated status indicators. This module is engineered for use with FLEX terminal bases, offering flexibility in installation and wiring configurations.
Technical Specifications
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Manufacturer: Allen Bradley
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Product Line: FLEX I/O 1794
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Catalog Number / Model: 1794-IB16
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UPC: 612598137787
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Product Type: Digital Input Module
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Weight: 0.19 lbs (0.09 kg)
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Terminal Base Compatibility: 1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK, 1794-TBKD, 1794-TB37DS
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Number of Inputs: 16 sinking inputs
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Nominal Input Voltage: 24 VDC
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On-State Voltage Range: 19.2–31.2 VDC
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On-State Current Range: 2.0–12.0 mA
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Off-State Voltage (Max): 5 VDC
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Off-State Current (Max): 1.5 mA
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Nominal Input Impedance: 4.6 kΩ
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Indicators: 16 yellow LED status indicators
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Flexbus Current Draw: 30 mA @ 5 VDC
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Power Dissipation: 6.1 W @ 31.2 VDC (max)
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Mounting: DIN rail installation
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Wire Size: Determined by terminal base selection
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Operating Temperature: 0–55 °C (32–131 °F)
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Storage Temperature: -40–85 °C (-40–185 °F)
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Vibration Resistance: 5 g @ 10–500 Hz
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Shock Resistance: 30 g
Application Scenarios
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Distributed control systems requiring multiple DC input points
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Manufacturing automation with high-density signal monitoring
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Energy and utility systems where compact modular I/O is essential
FAQ
Q: How many input channels does the 1794-IB16 provide? A: It supports 16 sinking DC input channels.
Q: What terminal bases are compatible with this module? A: It can be mounted on 1794-TB3, TB3S, TB3K, TB3SK, TBKD, and TB37DS bases.
Q: What is the nominal input voltage? A: The module operates at a nominal 24 VDC input.
Comparison with Similar Models
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1794-IB16: 16-point DC sinking input module with LED indicators.
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1794-IB8: 8-point DC sinking input module for smaller systems.
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1794-OB16: 16-point DC output module for control applications.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.
Understanding Marshalling Cabinets in Industrial Automation and Control Systems
Marshalling cabinets serve as the crucial connection hub between field instruments and centralized processing units. In large DCS and PLC control system architectures, hundreds of multipair field cables run from local junction boxes to the central instrument equipment room. The marshalling cabinet houses field terminal blocks, surge arresters, intrinsic safety isolation barriers, and interposing relays. By segregating field field-wiring terminations from sensitive processor hardware, engineers protect expensive controller backplanes from high-voltage transients. Consequently, this modular separation dramatically streamlines maintenance workflows and simplifies system expansion.