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- Schneider
- STBDDI3425K
- Basic Digital Input Kit
- France
- 18.4 x 125 x 65.1 mm
- 0.111 kg
- Xiamen, China
- New & In Stock
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Product Overview
In industrial automation systems, reliable digital signal acquisition is essential for monitoring machine status, detecting field device conditions, and ensuring accurate control operations. The Schneider STBDDI3425K Basic Digital Input Kit is a digital input solution designed for the Modicon STB distributed I/O platform, providing stable acquisition of 24 V DC discrete signals from industrial field devices.
The STBDDI3425K is used to collect ON/OFF signals from sensors, switches, push buttons, limit switches, and other digital devices. It converts external electrical signals into digital information that can be processed by PLC controllers and industrial automation systems.
As part of the Schneider Modicon STB distributed I/O family, the STBDDI3425K provides a compact and flexible solution for expanding digital input capability in industrial control applications. Its modular structure allows easy integration into machine automation systems, production lines, and distributed control architectures.
With dimensions of 18.4 × 125 × 65.1 mm and a weight of 0.111 kg, the Schneider STBDDI3425K is designed for efficient installation in industrial control cabinets where space optimization and reliable operation are required.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Model | STBDDI3425K |
| Product Type | Basic Digital Input Kit |
| Platform | Modicon STB Distributed I/O |
| Input Type | Digital Input |
| Number of Inputs | 4 Channels |
| Input Voltage | 24 V DC |
| Signal Type | ON/OFF Discrete Signal |
| Input Logic | Positive Logic |
| Main Function | Digital field signal acquisition |
| Installation Type | Modular I/O Installation |
| Response Time | Approx. 3.5 ms ON / 3.8 ms OFF |
| Input Current | Approx. 8 mA |
| Dimensions | 18.4 × 125 × 65.1 mm |
| Weight | 0.111 kg |
| Product Category | Digital Input Module |
Function and Working Principle
The Schneider STBDDI3425K Basic Digital Input Kit operates as an interface between industrial field devices and automation controllers.
During operation, external devices such as sensors and switches send digital signals to the input channels of the STBDDI3425K. The module detects the signal condition, processes the input status, and transfers the information through the Modicon STB communication system to the PLC controller.
The working process includes:
- Receiving 24 V DC digital signals from field devices
- Detecting input ON/OFF status
- Filtering and processing input signals
- Converting electrical signals into digital data
- Sending status information to the control system
Main functions include:
- Digital sensor monitoring
- Machine status detection
- Switch signal collection
- Field device connection
- Distributed I/O expansion
Through stable signal acquisition, the STBDDI3425K improves equipment monitoring accuracy and supports reliable industrial automation operation.
Role in Industrial Control Systems
The Schneider STBDDI3425K plays an important role in distributed automation systems by connecting field-level devices with PLC control platforms.
The Basic Digital Input Kit commonly works together with:
| System Component | Function |
|---|---|
| PLC Controllers | Execute automation programs |
| Modicon STB Network Interface Modules | Manage communication |
| Proximity Sensors | Detect object movement |
| Limit Switches | Provide position feedback |
| Push Buttons | Provide operator commands |
| Industrial Sensors | Monitor equipment conditions |
These components create a complete signal acquisition and control system for industrial applications.
Industrial Applications
The Schneider STBDDI3425K Digital Input Kit is widely used in industrial environments requiring reliable digital signal monitoring.
| Industry | Application |
|---|---|
| Manufacturing | Machine operation monitoring |
| Automotive Industry | Assembly line automation |
| Packaging Industry | Production equipment control |
| Material Handling | Conveyor status detection |
| Food & Beverage | Process equipment monitoring |
| Water Treatment | Pump and valve feedback |
| Energy Industry | Equipment condition monitoring |
| Factory Automation | Sensor signal collection |
Its compact design and reliable input performance make it suitable for various industrial automation applications.
Installation and System Integration
Correct installation of the Schneider STBDDI3425K is important for ensuring stable signal acquisition and reliable system performance.
Recommended installation procedures include:
- Install the module in the correct Modicon STB position
- Connect digital input wiring correctly
- Verify 24 V DC signal supply
- Check input channel configuration
- Confirm communication with the PLC system
- Perform input signal testing during commissioning
During startup, engineers should verify:
- Input channel status
- Sensor signal response
- Communication stability
- PLC data reception
- System diagnostic information
Proper installation helps reduce signal errors and improves automation system reliability.
Compatible System Components
The Schneider STBDDI3425K can be integrated with different industrial automation components.
| Compatible Component | Function |
|---|---|
| Modicon STB Systems | Distributed I/O platform |
| PLC Controllers | Execute control logic |
| Network Interface Modules | Manage communication |
| Digital Sensors | Generate field signals |
| Mechanical Switches | Provide status feedback |
| Industrial Equipment | Connect with control systems |
Together, these components provide a scalable distributed automation solution.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| Schneider STBDDI3425K | Basic Digital Input Kit | 4-channel 24 V DC input | Industrial automation |
| Schneider STBDDI3420K | Standard Digital Input Kit | Digital signal acquisition | Machine control |
| Schneider STBDDI3610K | Digital Input Module | Multi-channel input | Equipment monitoring |
| Schneider STBDDI3725K | Digital Input Module | Extended input capability | Complex systems |
| Schneider STBDDO Series | Digital Output Module | Industrial device control | Automation output |
Key Advantages
- Supports 4-channel 24 V DC digital input
- Provides reliable ON/OFF signal acquisition
- Compact modular design
- Easy integration with Modicon STB systems
- Lightweight 0.111 kg structure
- Suitable for machine automation applications
- Improves equipment monitoring efficiency
- Supports stable long-term industrial operation
Technical FAQs
What is the Schneider STBDDI3425K used for?
The Schneider STBDDI3425K is a basic digital input kit used to collect 24 V DC signals from industrial sensors, switches, and field devices.
How many input channels does the STBDDI3425K provide?
The STBDDI3425K provides 4 digital input channels.
What voltage does the STBDDI3425K support?
The module supports 24 V DC digital input signals.
Is the STBDDI3425K a PLC controller?
No. The STBDDI3425K is a digital input module used as part of a distributed I/O automation system.
Where is the Schneider STBDDI3425K installed?
It is installed within Modicon STB distributed I/O systems to collect digital signals from connected field devices.
Conclusion
The Schneider STBDDI3425K Basic Digital Input Kit is a reliable industrial automation component designed for collecting digital signals from field equipment and transferring operational information to control systems.
With its compact modular structure, stable 24 V DC input capability, and flexible integration features, the STBDDI3425K helps improve machine monitoring, enhance automation efficiency, and support modern industrial control systems.
For automation engineers, system integrators, and maintenance professionals, the Schneider STBDDI3425K provides a dependable solution for digital input expansion, distributed I/O integration, equipment monitoring, and long-term industrial automation operation.