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- SNT401-E3
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- 130 mm × 265 mm × 350 mm
- 6.4kg
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SNT401-E3 Technical Overview and Related Industrial Control Modules
1. Product Overview
The SNT401-E3 is a station node module used in distributed control system (DCS) architectures for industrial automation applications. It functions as a communication interface unit that connects controllers, remote I/O stations, and supervisory control layers within a plant-wide control network.
This module is designed for high-reliability industrial environments where continuous operation and stable deterministic communication are required. It is typically deployed in large process industries where system downtime is not acceptable.
The SNT401-E3 is part of a station node family that supports structured communication, redundancy design, and scalable system expansion.
2. Product Technical Parameters
| Parameter | Specification |
|---|---|
| Model | SNT401-E3 |
| Product Type | Station Node Unit (DCS communication interface module) |
| System Function | Network communication gateway for distributed control systems |
| Communication Method | Industrial deterministic control network (redundant architecture supported) |
| Primary Role | Data exchange between controllers, I/O subsystems, and operator stations |
| Power Supply | 24 V DC industrial standard |
| Redundancy Support | Supported in system-level configuration |
| Installation Type | Rack-mounted module / control cabinet installation |
| Operating Temperature | 0°C to 50°C |
| Storage Temperature | -20°C to 70°C |
| Humidity Range | 10% – 90% (non-condensing) |
| Electrical Isolation | Industrial-grade isolation design |
| Dimensions (W × H × D) | Approx. 130 mm × 265 mm × 350 mm |
| Weight | Approx. 6.4 kg |
| Enclosure Type | Metal industrial chassis |
| Maintenance | Modular plug-in replacement design |
| Application Environment | Industrial control rooms / process automation cabinets |
3. Product Introduction
The SNT401-E3 is designed as a core communication node within distributed automation systems. It enables reliable and structured data transmission across multiple control levels, ensuring that process data, control signals, and system diagnostics are exchanged in real time.
It is commonly installed in centralized control cabinets alongside controllers and I/O modules. The design emphasizes long-term operational stability, fault tolerance, and predictable communication timing.
The E3 configuration is generally considered a standard performance variant within the SNT401 node family, offering a balance between cost efficiency and system capability.
4. Product Applications
The SNT401-E3 is widely used in industrial automation environments that require continuous monitoring and process control.
Typical application areas include:
- Oil refining and petrochemical production facilities
- Natural gas processing and distribution systems
- Power generation plants (thermal and combined cycle)
- Chemical manufacturing and batch processing plants
- Metallurgical and steel production lines
- Offshore production platforms
- Large-scale industrial monitoring systems
In these environments, the module acts as a communication backbone ensuring uninterrupted coordination between distributed controllers and central supervisory systems.
5. Product Advantages
The SNT401-E3 provides several operational and engineering advantages:
- High reliability for continuous industrial operation
- Stable deterministic communication performance
- Supports redundant system architecture
- Modular design enables easy maintenance and replacement
- Strong resistance to industrial electrical noise
- Long lifecycle suitable for legacy system support
- Scalable architecture for plant expansion
- Smooth integration into distributed control systems
6. Product Series Information
The SNT401-E3 belongs to the SNT401 station node series, designed for distributed control system environments.
This series focuses on:
- Multi-node industrial communication networks
- Reliable data routing between control layers
- Redundant and fault-tolerant system design
- Long-term operational stability
- Scalable architecture for large industrial plants
The SNT401 series is typically used as part of a larger integrated automation platform including controllers, I/O modules, and engineering stations.
7. Related Models (Same Series or Closely Related Units)
| Model | Description | Key Characteristics | Dimensions & Weight |
|---|---|---|---|
| SNT401-E1 | Entry-level node unit | Basic communication functionality | 130 × 265 × 350 mm, approx. 6.2 kg |
| SNT401-E2 | Standard node unit | Improved stability and signal handling | 130 × 265 × 350 mm, approx. 6.3 kg |
| SNT401-E4 | Enhanced node unit | Higher communication capacity support | 135 × 270 × 360 mm, approx. 6.7 kg |
| SNT401-E5 | High-performance node | Optimized for large-scale systems | 135 × 270 × 360 mm, approx. 7.0 kg |
| SNT401-52 | Legacy-compatible node | Older system compatibility version | 130 × 265 × 350 mm, approx. 6.5 kg |
8. Same Brand Popular Models (Related Industrial Modules)
| Model | Product Type | Functional Description | Dimensions & Weight |
|---|---|---|---|
| ADV551-P50 | Digital input module | High-density digital signal input unit | 110 × 130 × 45 mm, approx. 0.6 kg |
| ADV561-P00 | Digital output module | Output control for industrial actuators | 110 × 130 × 45 mm, approx. 0.65 kg |
| AAI543-H00 | Analog input module | Precision analog signal acquisition module | 110 × 130 × 45 mm, approx. 0.7 kg |
| AAI841-S00 | Analog output module | Stable analog signal output control unit | 110 × 130 × 45 mm, approx. 0.7 kg |
| CP451-10 | Control processor module | Central processing and system coordination unit | 140 × 130 × 50 mm, approx. 0.9 kg |
9. Engineering Summary
The SNT401-E3 is a key communication component in distributed industrial automation systems. Its main role is to ensure stable and structured data exchange between controllers, I/O modules, and supervisory systems.
It is not a standalone controller but a critical infrastructure module that supports the overall reliability and scalability of large industrial plants. Its value increases significantly in environments where continuous operation and system redundancy are required.