Product Introduction
The Allen-Bradley 1734-IB4D Digital Input Module POINT I/O is a high-performance industrial input module designed for accurate digital signal acquisition. It provides 4 sinking-type 24V DC input points, allowing connection of discrete field devices such as sensors and switches.
The module’s open-style design and DIN-rail mounting make it suitable for compact control cabinets and distributed I/O systems. Its robust construction ensures reliable operation across a wide temperature and humidity range, making it ideal for industrial automation environments requiring consistent and repeatable digital input monitoring.
Product Specifications
| Parameter |
Specification |
| Product Series |
Point I/O (Bul. 1734) |
| Component Type |
Digital Input Module |
| Number of Digital Inputs |
4 qty |
| Digital Input Type |
Sinking (PNP) |
| Digital Input Range |
10 … 28.8V DC |
| Power Supply |
24V DC |
| Operating Temperature, Max |
55 °C |
| Operating Temperature, Min |
-20 °C |
| Storage Temperature, Max |
85 °C |
| Storage Temperature, Min |
-40 °C |
| Relative Humidity, Max |
95 %RH |
| Dimensions |
56 × 12 × 75.5 mm |
| Weight |
0.036 kg |
Applications
• Distributed I/O Systems
Provides digital input interface for POINT I/O networks in industrial automation.
• Automation Panel Integration
Compact size allows installation in high-density control cabinets.
• Industrial Sensing
Connects sensors and switches to controllers for real-time monitoring.
• Process Control Applications
Supports small-scale and modular process automation setups.
• Signal Acquisition and Monitoring
Ensures reliable detection of discrete digital signals for control applications.
• System Expansion
Adds additional input points to existing POINT I/O systems without redesigning the controller.
Advantages
• Compact and Modular Design
Small footprint allows integration into tight panel spaces.
• Sinking Input Compatibility
Optimized for 24V DC sinking devices for accurate signal acquisition.
• Wide Operating Temperature Range
Operates from -20 °C to 55 °C, suitable for diverse industrial environments.
• High Humidity Tolerance
Supports up to 95% RH, non-condensing.
• Fast and Reliable Input Detection
Ensures timely detection of input state changes for real-time process control.
• DIN-Rail Mounting Flexibility
Simplifies installation and integration with other POINT I/O modules.
FAQ
1. How many digital input points are provided, and what devices can be connected?
The module provides 4 discrete input points compatible with 24V DC sinking sensors, switches, and push buttons commonly used in industrial automation.
2. What type of input does the device support?
It supports sinking (PNP) DC inputs, ensuring compatibility with standard industrial sensors.
3. What is the input voltage range for the module?
The inputs accept signals from 10V to 28.8V DC, allowing tolerance for line variations or sensor supply differences.
4. Can this module be mounted on a DIN rail?
Yes, it is designed for standard DIN-rail mounting, enabling secure installation in control panels.
5. What is the operating temperature range of the unit?
The module operates reliably between -20 °C and 55 °C, making it suitable for most industrial environments.
6. What is the storage temperature range?
It can be safely stored between -40 °C and 85 °C without affecting functionality or reliability.
7. Can the module operate in high-humidity environments?
Yes, it supports relative humidity up to 95% RH (non-condensing), suitable for harsh industrial conditions.
8. How fast does the module detect input signals?
It provides rapid and reliable input detection, ensuring real-time signal acquisition for automation processes.
9. Is the module suitable for distributed control networks?
Yes, it integrates seamlessly into Allen-Bradley POINT I/O networks, allowing additional modules to be added for expansion.
10. How does the module contribute to system reliability?
By providing accurate signal detection and robust construction, it minimizes false readings and ensures consistent communication between field devices and the controller.
Related Models
| Model |
Description |
| Allen-Bradley 1734-IB2 |
2-point sinking digital input module |
| Allen-Bradley 1734-IB4 |
4-point sinking digital input module |
| Allen-Bradley 1734-IB8 |
8-point sinking digital input module |
| Allen-Bradley 1734-OB2 |
2-point digital output module |
| Allen-Bradley 1734-IB16 |
16-point digital input module |
| Allen-Bradley 1734-IB2S |
Sourcing digital input module variant |
Popular Models
| Model |
Description |
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POINT I/O Ethernet communication module |
| Allen-Bradley 1734-IB16 |
High-density digital input module |
| Allen-Bradley 1756-EN2T |
ControlLogix Ethernet communication module |
| Allen-Bradley 1756-IA16 |
Analog input module for ControlLogix |
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