Description
YOKOGAWA YNT511D
The YOKOGAWA YNT511D is a high-performance S3 bus repeater rack designed for Yokogawa’s distributed control systems (DCS), such as the CENTUM CS series. It extends the transmission distance of S3 buses, supports additional I/O modules and devices, and enhances system reliability through redundant configurations. With modular design and robust compatibility, the YNT511D is ideal for industrial automation in process industries, power plants, and infrastructure projects.
Product Parameters
| Parameter | Specification |
|---|---|
| Brand | Yokogawa |
| Model | YNT511D |
| Type | S3 Bus Repeater Rack |
| Compatibility | Yokogawa CENTUM CS series, S3 bus systems |
| Interface | S3 bus (optical/electrical) |
| Data Rate | 100 Mbps |
| Transmission Distance | Up to 2 km (optical) |
| Power Supply | 24V DC (±10%) or AC (model-dependent) |
| Power Consumption | 5.5W (max) |
| Dimensions (W×H×D) | 120 mm × 80 mm × 47 mm |
| Weight | 270 g |
| Operating Temperature | -10°C to 55°C |
| Environmental Rating | IP54 (dust/water protection) |
| Redundancy Support | Yes (dual redundancy for critical systems) |
YNT511D
Advantages and Features
- Bus Extension: Expands S3 bus length up to 2 km (optical) and increases node capacity for large-scale systems.
- Redundant Design: Supports dual redundancy to ensure continuous operation in fault-critical applications.
- Modular Flexibility: Easy installation and scalability via plug-and-play modules for custom configurations.
- High Reliability: 500V isolation and noise immunity protect against electromagnetic interference (EMI).
- Compact Size: Space-saving design (120 mm width) suitable for confined control cabinets.
Application Areas and Cases
- Industries: Petrochemical, power generation, water treatment, manufacturing.
- Case Example: A petrochemical plant used the YNT511D to extend S3 bus coverage across two production units, connecting 50+ I/O modules. The repeater’s redundancy and 2 km reach eliminated signal degradation, reducing downtime by 20% and improving process synchronization.
Competitor Comparison
Compared to standard bus repeaters, the YNT511D offers superior redundancy (dual vs. single) and longer transmission distances (2 km vs. 1 km typical). Its native compatibility with Yokogawa’s DCS ecosystem (CENTUM CS) minimizes integration complexity, unlike generic solutions requiring custom adapters.
YNT511D
Selection Recommendations
- System Scale: Choose based on required bus length (optical/electrical) and node count.
- Redundancy Needs: Opt for dual configuration (YNT511D + redundant power) for critical processes.
- Environment: Ensure IP54 rating matches site conditions (dust/water exposure).
- Power Type: Confirm AC/DC power requirements based on existing infrastructure.
Precautions
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Installation: Use shielded cables for electrical buses; follow Yokogawa’s wiring guidelines for optical fibers.
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Redundancy Setup: Activate dual repeater mode for fault tolerance; verify power supply redundancy.
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Maintenance: Schedule annual inspections for cable integrity and firmware updates.
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Safety: Disconnect power before module replacement; comply with NEC/CE standards for industrial networking.
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Compatibility: Only use Yokogawa-approved S3 bus devices to avoid protocol conflicts.
