
Product Introduction
The Allen-Bradley 1734-IB4 Digital Input Module POINT I/O is a compact industrial module designed for precise digital signal acquisition in distributed automation systems. It provides 4 sinking-type 24V DC input points, enabling connection of sensors, switches, and other discrete field devices.
The module’s open-style design and DIN-rail mounting make it suitable for dense control cabinets, ensuring reliable integration into POINT I/O networks. Its robust construction supports operation across a wide temperature and humidity range, making it ideal for industrial environments requiring accurate 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 |
0.032 kg |
Applications
• Distributed I/O Systems
Provides digital input interface for POINT I/O networks in distributed control architectures.
• 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 collection of discrete digital signals from field devices.
• System Expansion
Adds additional input points without major redesign of control systems.
Advantages
• Compact and Modular Design
Small footprint allows integration into tight control panel spaces.
• Sinking Input Compatibility
Optimized for 24V DC sinking devices for accurate input detection.
• Wide Operating Temperature Range
Supports -20 °C to 55 °C operation for diverse industrial environments.
• High Humidity Tolerance
Operates safely in environments up to 95% RH.
• Fast and Reliable Input Detection
Ensures timely detection of input changes for real-time process control.
• DIN-Rail Mounting Flexibility
Simplifies installation and integration with other POINT I/O modules.
FAQ
1. How many input points does this module provide?
The unit provides 4 discrete digital inputs for connecting 24V DC sinking sensors or switches.
2. What type of digital input is supported?
It supports sinking (PNP) DC inputs, ensuring compatibility with standard industrial devices.
3. What is the input voltage range?
The device accepts signals from 10V to 28.8V DC, accommodating minor voltage fluctuations.
4. Can the module be mounted on a DIN rail?
Yes, it is designed for secure DIN-rail mounting within control panels.
5. What is the operating temperature range?
The module operates between -20 °C and 55 °C for reliable industrial performance.
6. What is the storage temperature range?
It can be safely stored from -40 °C to 85 °C without affecting functionality.
7. Can the module operate in high humidity environments?
Yes, it supports up to 95% RH, non-condensing, making it suitable for harsh conditions.
8. How quickly does the module detect input signals?
It provides fast and reliable detection for real-time process control applications.
9. Is the module suitable for distributed control networks?
Yes, it integrates seamlessly into POINT I/O distributed networks, allowing additional modules to be added.
10. What types of devices can be connected to the inputs?
Standard 24V DC sensors, switches, and push buttons can be connected directly to the input points
Related Models
| Model |
Description |
| Allen-Bradley 1734-IB2 |
2-point sinking digital input module for POINT I/O |
| Allen-Bradley 1734-IB8 |
8-point sinking digital input module |
| Allen-Bradley 1734-OB2 |
2-point digital output module for POINT I/O |
| Allen-Bradley 1734-IB16 |
16-point digital input module for larger networks |
| Allen-Bradley 1734-IB2S |
Sourcing digital input module variant |
| Allen-Bradley 1734-IB2D |
Dual-channel digital input module |
Popular Models
| Model |
Description |
| Allen-Bradley 1756-L72 |
ControlLogix programmable controller |
| Allen-Bradley 1734-OB2 |
POINT I/O digital output module |
| Allen-Bradley 1734-AENT |
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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