Allen-Bradley 1794-IB16 Flex I/O 16-Point Digital Input Module

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SKU: 1794-IB16 PLC & Industrial Automation Modules Allen-Bradley (Rockwell)

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Allen-Bradley 1794-IB16 Flex I/O 16-Point Digital Input Module

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SKU1794-IB16
CategoryPLC & Industrial Automation Modules
BrandAllen-Bradley (Rockwell)
SupportAvailability, lead time, condition, and shipping coordination

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ControlLogix 1756 PLC-5 SLC 500

Allen-Bradley 1794-IB16 Flex I/O 16-Point Digital Input Module

The Allen-Bradley 1794-IB16 is a high-performance digital input module designed for demanding industrial automation environments. This 16-point input module delivers reliable signal acquisition for process control, safety systems, and manufacturing automation applications where precision and durability are paramount.

Technical Specifications

Parameter	Specification
Model Number	1794-IB16
Input Points	16 discrete inputs
Input Voltage	24VDC nominal (10-30VDC range)
Input Current	7 mA typical per point
Input Impedance	3.3 k © typical
On-State Voltage	15-30VDC
Off-State Voltage	0-5VDC
Response Time	1-10 ms (configurable)
Isolation Voltage	50V continuous, 1000V for 1 second
Operating Temperature	0 °C to 60 °C (32 °F to 140 °F)
Storage Temperature	-40 °C to 85 °C (-40 °F to 185 °F)
Humidity	5% to 95% non-condensing
Power Consumption	150 mA at 5VDC (from backplane)
Dimensions	118 mm x 87 mm x 40 mm
Weight	Approximately 0.2 kg
Certifications	UL, cUL, CE, C-Tick

Application Scenarios

Process Control Systems: The 1794-IB16 excels in monitoring discrete sensors, limit switches, and proximity detectors across chemical processing, oil and gas, and water treatment facilities. When paired with the Allen-Bradley 1794-PS13 power supply, it ensures stable operation in critical process environments.

Manufacturing Automation: Integrate seamlessly with assembly lines, packaging systems, and material handling equipment. The module works perfectly alongside the 1794-OB16 digital output module to create comprehensive I/O solutions for automated production lines.

Safety Monitoring: Deploy in safety-critical applications requiring reliable input monitoring from emergency stop buttons, safety gates, and interlock switches. Combine with ControlLogix 1756-L83EP processors for advanced safety logic execution.

Building Automation: Monitor HVAC systems, lighting controls, and access control sensors in commercial and industrial facilities with proven reliability.

System Integration Solutions

The 1794-IB16 requires a compatible terminal base for installation. We recommend the 1794-TB3/A screw clamp terminal base for standard applications or the 1794-TB3S spring clamp terminal base for faster installation and maintenance.

For network connectivity, pair with the 1794-ADN DeviceNet adapter or 1794-ACN15 ControlNet adapter depending on your network architecture requirements.

For analog signal processing in the same system, consider adding the 1794-IE12/A analog input module to create a comprehensive mixed-signal I/O solution.

Key Features & Benefits

High-Density Design: 16 input points in a compact form factor maximize cabinet space efficiency
Flexible Configuration: Software-configurable input filters and response times adapt to diverse application requirements
Diagnostic Capabilities: Built-in LED indicators and comprehensive diagnostics simplify troubleshooting and reduce downtime
Robust Construction: Conformal coating options available for harsh environments with extreme temperatures, humidity, and contaminants
Hot-Swappable: Replace modules without powering down the system, minimizing production interruptions
Universal Compatibility: Works seamlessly with Flex I/O, ControlLogix, and CompactLogix platforms

Frequently Asked Questions

Q: What terminal base is required for the 1794-IB16?
A: The module requires a 36-pin terminal base such as the 1794-TB3, 1794-TB3S, or 1794-TB3K depending on your wiring and environmental requirements.

Q: Can I mix input and output modules on the same Flex I/O adapter?
A: Yes, you can combine the 1794-IB16 with output modules and analog I/O modules on the same adapter, up to the adapter’s maximum I/O capacity and power budget.

Q: What is the maximum cable length for field wiring?
A: For 24VDC inputs, maximum recommended cable length is 100 meters (328 feet) using shielded cable to minimize electrical noise interference.

Q: Is the module suitable for hazardous location installations?
A: The standard 1794-IB16 is rated for general industrial use. For hazardous locations, consider the 1797 Flex Ex series designed for Class I, Division 2 environments.

Q: How do I configure input filter times?
A: Input filter times are configured through RSLogix 5000 or Studio 5000 software, with selectable options ranging from 1ms to 10ms to suit your application’s noise immunity requirements.

Warranty & Support

All Allen-Bradley 1794-IB16 modules come with a comprehensive 12-month warranty covering manufacturing defects and workmanship. Our technical support team provides expert assistance for installation, configuration, and troubleshooting throughout the product lifecycle.

Why Choose NINERMAS?

We specialize in premium industrial automation components with rigorous quality verification, fast global shipping, and expert technical support. Every module undergoes comprehensive testing to ensure reliability in your critical control systems.