The Yokogawa YNT512D-V12 PLC Rack Bus Repeater is a high-performance communication interface device designed specifically for Yokogawa PLC systems. It functions as a repeater to extend the transmission distance of the PLC rack bus, ensuring stable and reliable communication between multiple PLC modules over longer distances. The device is compact yet robust, suitable for both industrial and control room environments. Its modular design allows for easy installation and maintenance, making it an essential component for complex automation systems requiring precise and uninterrupted data transfer.

The YNT512D-V12 supports high-speed data transmission and is fully compatible with the Yokogawa CENTUM VP series, enabling seamless integration into existing control systems. It ensures signal integrity and reduces noise interference, which is crucial in environments with heavy electromagnetic disturbances.

Product Advantages

• Extended Communication Distance: Extends PLC rack bus communication without loss of signal integrity.

• Reliable Data Transmission: Ensures stable data flow between PLC modules, minimizing errors.

• Easy Integration: Fully compatible with Yokogawa PLC systems and CENTUM VP architecture.

• Compact Design: Saves space in control panels while providing high functionality.

• Robust Construction: Designed to operate in harsh industrial environments with resistance to vibration and temperature fluctuations.

• Low Maintenance: Modular and plug-in design simplifies installation, inspection, and replacement.

• EMI Resistant: Provides stable operation even in environments with high electrical noise.

Technical Specifications

Product Applications

• Extending PLC rack bus communication in large-scale control systems.

• Integrating multiple PLC modules in distributed automation networks.

• Use in process industries such as oil & gas, chemical, power generation, and water treatment plants.

• Reducing signal degradation in electrically noisy environments.

• Supporting modular expansion of Yokogawa PLC systems.

• Enhancing reliability in critical control loops requiring continuous data transmission.

Installation Instructions

• Mount the YNT512D-V12 on a DIN rail within the PLC cabinet.

• Connect the input and output rack bus lines according to the system wiring diagram.

• Ensure the 24 V DC supply is stable and within the rated tolerance.

• Verify LED indicators for proper operation; green typically indicates normal communication.

• Avoid routing communication lines near high-power devices to minimize electromagnetic interference.

• Regularly inspect connections for corrosion or loosening in long-term installations.

FAQ

Q1: What is the maximum distance this repeater can extend the PLC rack bus?

A1: The YNT512D-V12 can typically extend up to 50 meters, depending on environmental factors and bus load.

Q2: Can this device work with non-Yokogawa PLCs?

A2: No, the repeater is specifically designed for Yokogawa PLC rack buses and may not function properly with other systems.

Q3: Is it suitable for outdoor installation?

A3: No, the device is designed for indoor use. Exposure to moisture or extreme temperatures outside the rated range may damage it.

Q4: How do I know if the repeater is working correctly?

A4: Check the LED indicators. A green LED typically signals normal operation and communication integrity.

Q5: What happens if the repeater fails?

A5: Failure may result in disrupted communication between PLC modules. Redundant design or backup repeaters are recommended in critical systems.

Q6: Can multiple YNT512D-V12 repeaters be chained together?

A6: Yes, but care must be taken to maintain proper termination and avoid exceeding bus length specifications.

Q7: Does it require configuration after installation?

A7: No, the device is plug-and-play. Simply mount and connect to the rack bus.

Q8: What is the operating temperature range?

A8: The repeater operates from 0°C to 55°C and can be stored from -20°C to 70°C.

Q9: How do I power the YNT512D-V12?

A9: It requires a 24 V DC power supply with a current draw of approximately 150 mA.

Q10: Is there any protection against electrical faults?

A10: Yes, it has built-in short-circuit and overvoltage protection to safeguard both the repeater and the connected PLC modules.