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- SNT401-53/CU1N
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- 130 mm × 265 mm × 350 mm
- 6.5kg
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SNT401-53/CU1N Technical Overview and Related Models
1. Product Overview
The SNT401-53/CU1N is a station node unit used in distributed control system architectures for industrial automation environments. It is designed to act as a communication and interface hub between control stations, I/O subsystems, and higher-level supervisory systems.
This unit is typically deployed in large-scale process control applications where high reliability, redundancy support, and stable real-time communication are required.
It is commonly associated with CENTUM series distributed control system architecture and is used in industries such as oil refining, petrochemicals, power generation, and large manufacturing plants.
2. Product Technical Parameters
| Parameter | Specification |
|---|---|
| Model | SNT401-53/CU1N |
| Product Type | Station Node Unit (DCS communication node) |
| System Role | Interface between control stations and network I/O |
| Communication Method | Redundant control network (Vnet/IP type architecture) |
| Power Supply | 24 V DC (typical industrial control supply) |
| Redundancy Support | Yes (system-level redundancy architecture) |
| Mounting Type | Rack-mounted / cabinet installation |
| Operating Temperature | 0°C to 50°C (industrial environment standard range) |
| Storage Temperature | -20°C to 70°C |
| Relative Humidity | 10% – 90% (non-condensing) |
| Dimensions (W × H × D) | Approx. 130 mm × 265 mm × 350 mm |
| Weight | Approx. 6.5 kg |
| Protection Level | Industrial cabinet protection (IP-based enclosure dependent) |
| Installation Environment | Control room / instrumentation cabinet |
3. Product Application Fields
The SNT401-53/CU1N is designed for complex process automation systems where continuous operation is critical.
Typical application areas include:
- Oil refining and petrochemical production units
- Natural gas processing facilities
- Thermal and combined-cycle power plants
- Large-scale chemical manufacturing plants
- Metallurgy and steel production automation systems
- Offshore platform control systems
- Industrial centralized monitoring systems
In these environments, the unit functions as a backbone communication node ensuring stable data exchange between distributed controllers and higher-level control stations.
4. Product Advantages
The SNT401-53/CU1N provides several engineering and operational benefits:
- High system stability suitable for 24/7 continuous operation
- Redundant communication architecture reduces risk of downtime
- Strong compatibility within distributed control system environments
- Fast and deterministic communication for real-time control
- Modular design simplifies maintenance and replacement
- Industrial-grade durability for harsh environments
- Supports large-scale system expansion without major redesign
- Long lifecycle, suitable for legacy system integration and upgrades
5. Product Series Information
The SNT401-53/CU1N belongs to the SNT401 station node family.
This series is designed as part of a distributed control architecture used in large process automation systems. It focuses on:
- Network-level communication between control nodes
- Integration of field-level controllers and supervisory systems
- Redundant and fault-tolerant system design
- Scalable architecture for plant-wide deployment
The SNT401 series is generally used alongside compatible controllers, I/O modules, and engineering stations within the same automation ecosystem.
6. Related Models (Same Series / Closely Related Units)
| Model | Technical Description | Key Parameters | Dimensions & Weight |
|---|---|---|---|
| SNT401-11 | Standard station node unit | Basic communication node, non-extended redundancy configuration | 130 × 265 × 350 mm, approx. 6.2 kg |
| SNT401-12 | Enhanced redundancy node | Improved redundancy handling and communication stability | 130 × 265 × 350 mm, approx. 6.4 kg |
| SNT401-21 | Extended I/O communication node | Supports larger I/O mapping capacity | 135 × 270 × 360 mm, approx. 6.8 kg |
| SNT401-31 | High-capacity node unit | Optimized for large distributed systems | 135 × 270 × 360 mm, approx. 7.0 kg |
| SNT401-52 | Predecessor configuration unit | Earlier generation architecture support | 130 × 265 × 350 mm, approx. 6.5 kg |
7. Same Brand Popular Models (Related Automation Products)
| Model | Product Type | Key Parameters | Dimensions & Weight |
|---|---|---|---|
| ADV551-P50 | Digital input module | High-density digital input, 16–32 channel configurations | 110 × 130 × 45 mm, approx. 0.6 kg |
| ADV561-P00 | Digital output module | Relay/transistor output control module | 110 × 130 × 45 mm, approx. 0.65 kg |
| AAI543-H00 | Analog input module | High-precision analog signal acquisition | 110 × 130 × 45 mm, approx. 0.7 kg |
| AAI841-S00 | Analog output module | Stable analog signal output for actuators | 110 × 130 × 45 mm, approx. 0.7 kg |
| CP451-10 | Control processor module | Central processing unit for control station | 140 × 130 × 50 mm, approx. 0.9 kg |