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- Allen Bradley
- 1794-IV16
- ControlNet Flex I/O Adapter Module
- USA
- 94 mm × 136 mm × 66 mm
- 0.09kg
- Xiamen, China
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FLEX I/O 1794-IV16 Technical Description
1. Product Overview
The 1794-IV16 is a high-density discrete input module designed for industrial automation systems requiring reliable 24V DC signal acquisition. It is commonly used in distributed I/O architectures where multiple digital signals must be collected efficiently from field devices such as switches, sensors, and relays.
The module provides 16 non-isolated sourcing input channels, allowing compact integration of a large number of field signals into a control system with minimal wiring complexity.
It is engineered for industrial environments where stable operation, noise immunity, and modular expandability are required.
2. Brand and Product Classification
- Brand: Industrial automation control hardware manufacturer
- Product Type: Digital Input Module
- Series: FLEX I/O 1794 Series
- System Type: Distributed Remote I/O System
- Input Configuration: Sourcing (24V DC logic)
- Channel Count: 16 points per module
- Mounting System: DIN rail terminal base system
3. Product Introduction
The 1794-IV16 module is designed to interface between field devices and programmable control systems by converting 24V DC digital signals into readable logic signals.
Each channel is individually monitored, allowing real-time status detection of field devices such as push buttons, proximity switches, limit switches, and auxiliary relay contacts.
It integrates into a modular FLEX I/O architecture, enabling engineers to distribute I/O points closer to the machine or process, reducing wiring cost and improving system reliability.
The module also features built-in status indicators for each input channel, providing quick diagnostic visibility during commissioning and maintenance.
4. Technical Parameters
4.1 Electrical Parameters
| Parameter | Specification |
|---|---|
| Input Channels | 16 discrete inputs |
| Input Type | Sourcing DC input |
| Nominal Voltage | 24V DC |
| Operating Voltage Range | 10V to 31.2V DC |
| Input Current | Approx. 8 mA per point @ 24V |
| Signal Logic | ON/OFF digital signal |
| Input Filtering | Adjustable (0.25 ms – 32 ms) |
| Backplane Power | 24V DC system bus |
| Power Consumption | Approx. 3–6 W |
| Isolation | Non-isolated channel design |
4.2 Environmental Parameters
| Parameter | Specification |
|---|---|
| Operating Temperature | 0 to 55 °C |
| Storage Temperature | -40 to 85 °C |
| Humidity | 5% to 95% non-condensing |
| Vibration Resistance | Industrial grade (IEC compliant) |
| Shock Resistance | Up to 30 g operating |
4.3 Mechanical Parameters
| Parameter | Specification |
|---|---|
| Width | 94 mm |
| Height | 94 mm (installed with base) |
| Depth | 69 mm |
| Weight | approx. 0.09 kg |
| Mounting Type | DIN rail mounted modular base |
| Wiring Method | Terminal base screw connection |
| Housing Type | Compact industrial module shell |
5. Product Applications
The 1794-IV16 is widely used in automation systems requiring multiple digital input points in a compact footprint.
Typical applications include:
- Manufacturing production lines
- Conveyor and material handling systems
- Machine status monitoring
- Packaging equipment control systems
- Automotive assembly systems
- Pump and motor control panels
- Industrial safety interlock systems
- Process plant signal acquisition
- HVAC control systems
- Energy and utility monitoring systems
It is especially effective in systems where distributed signal collection is preferred over centralized wiring.
6. Product Advantages
6.1 High Input Density
16 input channels in a single module significantly reduce cabinet space and wiring requirements.
6.2 Fast Signal Response
Designed for quick digital signal detection suitable for high-speed industrial processes.
6.3 Modular Expansion Capability
Can be combined with other FLEX I/O modules for mixed signal systems (digital, analog, specialty inputs).
6.4 Easy Maintenance
Module replacement can be performed without redesigning the entire system architecture.
6.5 Visual Diagnostics
Each channel is equipped with LED indicators for fast troubleshooting.
6.6 Stable Industrial Operation
Built for noisy electrical environments with strong EMC performance.
6.7 Flexible Configuration
Input filtering can be adjusted to match different signal response requirements.
7. Product Series Overview
- Series Name: FLEX I/O 1794 Series
- System Architecture: Distributed modular I/O system
- Function: Remote signal acquisition and control expansion
- Key Features:
- Mixed I/O compatibility (digital, analog, specialty modules)
- Modular terminal base system
- Scalable architecture
- Industrial rugged construction
- Easy system integration
8. Recommended Related Models (Same or Similar Series)
FLEX I/O 1794 Series Related Modules
| Model | Description | Channels | Function Type | Voltage | Weight (kg) |
|---|---|---|---|---|---|
| 1794-IB16 | Digital input module (sinking type) | 16 | Input | 24V DC | 0.15 |
| 1794-OB16 | Digital output module | 16 | Output | 24V DC | 0.16 |
| 1794-IA8 | AC input module | 8 | Input | 120/240V AC | 0.18 |
| 1794-IE8 | Analog input module | 8 | Current input | 4–20 mA | 0.18 |
| 1794-IV32 | High-density digital input module | 32 | Input | 24V DC | 0.22 |
9. Popular Models from Same System Ecosystem
Widely Used FLEX I/O Modules
| Model | Description | Channels | Function Type | Voltage | Weight (kg) |
|---|---|---|---|---|---|
| 1794-OB16 | Digital output module | 16 | Control output | 24V DC | 0.16 |
| 1794-IB32 | High-density digital input module | 32 | Input | 24V DC | 0.22 |
| 1794-IE8 | Analog input module | 8 | Signal measurement | 4–20 mA | 0.18 |
| 1794-OF4I | Analog output module | 4 | Signal output | 4–20 mA | 0.19 |
| 1794-AENTR | Network communication adapter | — | Ethernet interface | 24V DC | 0.22 |
10. Summary
The 1794-IV16 is a robust and widely used industrial digital input module designed for efficient acquisition of multiple 24V DC signals in automation systems.
Its main strengths include:
- High channel density (16 inputs)
- Reliable industrial signal processing
- Modular system integration
- Fast response and flexible filtering
- Compact design for space-saving installations
It is commonly selected for industrial environments requiring scalable, distributed, and reliable digital input solutions.