Features:
- Provides a 10+2 slot architecture with dedicated processor slots and general-purpose expansion slots for flexible system configuration.
- Supports Duplex hardware hot standby, enabling seamless processor redundancy for continuous process control.
- Serves as the high-speed communication backplane for Yokogawa CENTUM distributed control systems while supporting industrial operating environments.
Yokogawa ASS9981DE-01 forms the hardware foundation of a Yokogawa CENTUM distributed control system by providing a reliable platform for processor, communication, power, and I/O modules. Rather than performing control functions directly, the rack supplies the physical structure and communication backplane required for coordinated system operation. Twelve physical slots allow users to build scalable control architectures while maintaining organized module installation. The design is well suited for process automation environments where dependable communication is essential.
Redundant control is one of the primary strengths of Yokogawa ASS9981DE-01. Two dedicated processor slots support dual CPU modules operating in a Duplex hot standby configuration, allowing rapid automatic transfer of control if the active processor encounters a fault. Ten additional slots provide installation space for communication interfaces, network modules, power supplies, and distributed I/O hardware. This architecture helps improve system availability while reducing the risk of production interruptions.
Yokogawa ASS9981DE-01 is engineered for continuous industrial service in demanding operating conditions. The rack supports operating temperatures from 0 °C to +60 °C, storage temperatures from -20 °C to +85 °C, and humidity levels of 10% to 90% RH without condensation. Typical applications include petrochemical production, power generation, steel processing, and other industries requiring reliable distributed control and high system uptime. By serving as the communication hub for field devices and operator stations, the rack contributes to stable, long-term process automation.
The ASS9981DE-01 Yokogawa 10+2 Slot Rack may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Yokogawa ASS9981DE-01 10+2 Slot Rack Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Yokogawa ASS9981DE-01 10+2 Slot Rack Specs
General
- Manufacturer Yokogawa
- Model ASS9981DE-01
- Condition New Original ready stock
- Product Family ASS9881DE-02,ASS9562DK-00
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Firmware Version: Compatible with the latest embedded security firmware for Centum VP R6 and above systems.
- Redundancy Switching: Built-in dual-path redundant communication firmware, supporting millisecond-level non-disruptive hot standby switching.
- Online Upgrade: Supports module-level firmware online hot upgrade (RIUP) without affecting system operation.
- Security Defense: Firmware integrates a network security encryption and verification mechanism compliant with IEC 62443 standard.
- Oil Refining & Chemical Industry: Used for high-density signal acquisition and control in large-scale oil refinery DCS systems.
- Offshore Platforms: Suitable for space-constrained and harsh environments such as oil and gas drilling platforms.
- Combined Cycle Power Generation: Used for high-reliability redundant control systems for gas turbines and steam turbines.
- Pharmaceutical & Fine Chemical Industry: Meets the configuration requirements for high-precision, high-isolation signals in batch processing technologies.
- Slot Architecture: Utilizes a design with 10 standard I/O slots plus 2 dedicated power/communication redundant slots.
- Power Supply Redundancy: Configured with dual 24V DC inputs, supporting independent current sharing for dual power supplies.
- Module Compatibility: Fully compatible with Yokogawa FIO series high-density analog and digital modules.
- Installation Method: Standard 19-inch rack mounting, occupying 4U space, supporting front and rear ventilation for heat dissipation.