Reliable ESB Bus Connectivity with Built-in Signal Termination
The Yokogawa S9564FA Bus Connector Unit is an ESB (Extended System Bus) interface component designed for Yokogawa ANB10D Node Units in CENTUM VP and ProSafe-RS systems. It provides both physical bus connection and integrated termination functionality, ensuring stable and noise-free communication between control units and distributed I/O modules.
By combining signal connection and termination in a single unit, it simplifies system wiring architecture while improving communication integrity across ESB networks in large-scale automation systems.
Technical Specifications
| Parameter | Specification |
|---|
| Product Type | ESB Bus Connector Unit with Terminator |
| Model | S9564FA |
| System Compatibility | Yokogawa CENTUM VP / ProSafe-RS / ANB10D systems |
| Function | ESB bus connection + line termination |
| Bus Type | ESB (Extended System Bus) |
| Compatible Node Unit | ANB10D Node Unit |
| Termination | Built-in termination resistor |
| Power Supply Options | 100–120 V AC / 220–240 V AC / 24 V DC (system dependent) |
| Mounting Type | 19-inch rack mounting |
| Weight | Approx. 1.5 kg |
| Operating Temperature | -10°C to +55°C |
| Storage Temperature | -40°C to +70°C |
| Humidity Range | 5% to 95% non-condensing |
Industrial Applications
The S9564FA is widely used in large-scale industrial automation systems where Yokogawa distributed control platforms are deployed:
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Oil & gas processing and pipeline control systems
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Petrochemical and refining facilities
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Power generation and turbine control systems
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Offshore platforms and LNG plants
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Continuous process manufacturing industries
Its role is essential in ensuring stable communication between field control units and distributed I/O nodes.
Engineering Advantages
Although passive in function, the S9564FA plays a vital role in maintaining system stability and communication integrity.
Key advantages include:
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Integrated termination design improves ESB signal stability
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Reduced wiring complexity by combining connector and terminator functions
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High reliability in industrial environments with EMI resistance
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Stable communication performance for distributed control systems
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Seamless integration with ANB10D node architecture
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Reduced installation errors compared to separate termination components
This makes it an essential infrastructure component in Yokogawa ESB-based systems.
Technical FAQs
1. What is the main function of S9564FA?
It connects ESB bus lines to ANB10D nodes and provides built-in termination.
2. Does it process control signals?
No, it is a passive communication and termination component.
3. What system is it used in?
Yokogawa CENTUM VP and ProSafe-RS systems using ANB10D nodes.
4. Why is termination important?
It prevents signal reflections that can disrupt ESB communication.
5. Is it mandatory in ESB systems?
Yes, proper termination is required for stable bus operation.
6. What is the compatible node unit?
ANB10D ESB Bus Node Unit.
7. Can it be replaced while system is running?
No, replacement should be done during scheduled maintenance.
8. What industries use it?
Oil & gas, petrochemical, power, and process industries.
9. What makes it different from S9562FA?
S9564FA includes a built-in terminator; S9562FA is a basic connector unit.
10. Why is it important in DCS architecture?
It ensures stable, reflection-free communication across ESB networks.
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