Description
ABB NU8976A HIEE220295R0001 HIEE320693R0001 Module
NU8976A (material number HIEE222095R0001/HIEE320693R0001) is a high-performance processor module in ABB Advant 800xA distributed control system (DCS), belonging to the core computing unit of ABB industrial automation control field. This module itself does not execute specific process control algorithms, but serves as the computing center of the entire DCS system, responsible for data acquisition and processing, control logic operations, historical data recording, and communication scheduling with the upper system.
ABB NU8976A HIEE220295R0001 HIEE320693R0001 Module
core positioning
This module is the main processor of the control station in the Advant 800xA system, responsible for real-time data processing tasks at the system level. It centrally calculates process data from on-site I/O modules, generates control instructions, and sends them to the executing agency, while uploading operational data to the operator station and engineer station. In the system architecture, it is the core node connecting the field layer and the management layer, where all control loop calculations, alarm judgments, and event records are completed.
computing power
The processor adopts Intel Core i7 or equivalent industrial grade processor, supports up to 16GB of memory, and is equipped with solid-state drive (SSD) as system storage. The operating system is Windows 10 or Windows 11, which supports multitasking parallel processing and can run control algorithms, data acquisition, communication drivers, and diagnostic programs simultaneously without affecting the determinacy of the control cycle. The control cycle can reach millisecond level, meeting the real-time control requirements of most continuous and batch processes.
communication interface
Equipped with Ethernet interface (RJ45), USB interface, and RS-232 serial port. The Ethernet interface supports high-speed data exchange with operator stations, engineer stations, historical databases, and upper SCADA systems, with an adaptive communication rate of 10/100Mbps. RS-232 is used for local maintenance and programming debugging. The module supports standard industrial protocols such as Modbus TCP and OPC-UA, and can seamlessly integrate with third-party systems.
Electrical Characteristics
The working power is uniformly supplied by the DCS rack bus, and the module implements electrical isolation between the computing side and the I/O side, effectively blocking the on-site grounding circuit and transient interference. Equipped with overvoltage protection, overcurrent protection, and surge protection. Automatically detect the electrical ID of the module when powered on, and refuse to enter the running state when it does not match the system configuration, to prevent system failure caused by mismatching. The onboard LED indicator lights display real-time power status, communication activity, hard disk read/write, and fault conditions.
Physical specifications
The size is 19 inches x 7 inches x 3 inches (483mm x 178mm x 76mm), standard 19 inch rack mount, occupying approximately 7 inches of slot width. The weight is approximately 4.5kg (10 pounds). The protection level meets the installation requirements inside the cabinet, and the working temperature range is suitable for the industrial control room environment. Supports hot swapping and can be replaced without interrupting the running control circuit when the system is powered on.
Typical Applications
Mainly used for thermal power, nuclear power, gas turbine control in the power industry, refining equipment and pipeline transportation in the petrochemical industry, rolling mill and continuous casting control in the metallurgical industry, continuous process industries such as papermaking and cement, as well as public utilities such as water and rail transit. In the Advant 800xA system, this processor is typically used in conjunction with communication interface modules such as CI854 and CI858 to form a complete control station.
Material number description
HIEE220295R0001 and HIEE320693R0001 are the material numbers of different revisions of the same module. Their functions are identical and can be used interchangeably in the system. Some materials are also labeled as NU8976A99/HIER46665R0099, belonging to different coding systems of the same product line.
