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Allen Bradley 1794-IB16D Digital Input Module
- Product Details
- FAQs
- Related
- Contact Us
- Packing & Delivery
- Product Ratings
Module Introduction
The Allen Bradley 1794-IB16D Digital Input Module is a 16-point DC input device from the FLEX I/O family, engineered to deliver compact, flexible, and high-density I/O connectivity for distributed control systems. Designed for efficiency and scalability, the 1794-IB16D provides reliable digital signal acquisition from field sensors such as proximity switches, push buttons, and photoelectric devices.
Built for modern automation systems, this module not only offers diagnostic feedback for input states but also includes integrated fault detection to simplify troubleshooting and improve operational uptime.
Technical Data Sheet
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley / Rockwell Automation |
| Product Series | FLEX I/O 1794 Series |
| Product Type | 16-Point Digital Input Module |
| Input Type | DC Sinking Inputs |
| Number of Inputs | 16 Channels |
| Input Voltage Range | 10–31.2 VDC (nominal 24 VDC) |
| Current Draw per Input | 8 mA typical at 24 VDC |
| Input Delay (ON/OFF) | 0.25 ms (typical) |
| Isolation Voltage | 50 V Continuous, Basic Insulation |
| Input Signal Status Indicators | LED per input point |
| Module Diagnostics | Open-wire detection, short-circuit indication |
| Backplane Current | 70 mA at 5 V DC |
| Operating Temperature | 0°C to 55°C (32°F to 131°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Humidity | 5–95% non-condensing |
| Dimensions (H × W × D) | 94 mm × 94 mm × 69 mm (3.7 in × 3.7 in × 2.7 in) |
| Weight | 0.16 kg (0.35 lb) |
| Mounting Type | DIN Rail with 1794 Terminal Base |
| Certifications | UL, CE, C-Tick, CSA, Class I Div 2 |
Practical Use in Automation Systems
The 1794-IB16D is ideal for decentralized I/O architectures where space efficiency and wiring reduction are critical. It is commonly implemented in packaging lines, automotive systems, and process skids. Its diagnostic feedback simplifies maintenance by detecting open wires and shorted input conditions — a crucial feature in systems demanding high reliability and uptime.
When connected through adapters such as 1794-AENT (EtherNet/IP) or 1794-ACN15 (ControlNet), this module provides seamless communication with CompactLogix, ControlLogix, and other Rockwell controllers.
Distinctive Engineering Benefits
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High-Density Input Design: 16 inputs per module reduce overall panel space requirements.
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Integrated Diagnostics: Built-in fault detection enhances troubleshooting and predictive maintenance.
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LED Indication: Clear visual input status display for quick system checks.
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Flexible Mounting: Compatible with multiple terminal base units for configuration flexibility.
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Field Proven Reliability: Optimized for vibration and temperature variations in industrial settings.
Technical Questions & Answers
-
What type of sensors can the 1794-IB16D connect to?
It supports DC sinking sensors such as mechanical switches and photoelectric sensors. -
Can it detect open-wire conditions?
Yes, the module includes built-in open-wire detection for diagnostic purposes. -
Is it compatible with EtherNet/IP adapters?
Absolutely. It works with 1794-AENT and AENTR adapters for EtherNet/IP communication. -
Does it provide short-circuit indication?
Yes, it features diagnostic LEDs to indicate shorted inputs. -
What is the typical delay time for signal recognition?
Around 0.25 milliseconds for both ON and OFF transitions. -
Can it be used in hazardous locations?
It is rated for Class I, Division 2 environments when properly installed. -
Does it require a separate terminal base?
Yes, it installs onto a 1794-series base such as 1794-TB3 or 1794-TB3S. -
How are power and signal grounds managed?
Power is supplied through the backplane; individual inputs share a common return line. -
What is the power consumption of the module?
Approximately 0.35 W, making it highly energy-efficient. -
Can input status be viewed in the controller’s tag database?
Yes, all input states and diagnostic information are accessible in the controller tag structure.
Recommended Related Models
| Model | Description |
|---|---|
| 1794-OB16 | 16-Point Digital Output Module |
| 1794-IE8 | 8-Channel Analog Input Module |
| 1794-IB8 | 8-Point DC Input Module |
| 1794-OB32P | 32-Point DC Output Module |
| 1794-IF4I | 4-Channel Isolated Analog Input Module |
| 1794-AENTR | Dual-Port EtherNet/IP Adapter Module |
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| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
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