TOSHIBA USIO21 Distributed Control System

I. Hardware Specifications

Storage configuration: It is equipped with high-capacity on-board DDR memory, with a capacity ranging from 128 - 256MB, which guarantees the rapid storage and reading of data and can efficiently handle a large amount of real-time data. Meanwhile, it supports on-chip disk storage of 2 - 256M, which can be used to store important program files, historical data, etc., meeting the diverse data storage capacity requirements in different application scenarios.

II. Communication Capabilities

Industrial Ethernet communication: The USIO21 constructs a redundant control network "enet" based on two physically isolated redundant industrial Ethernet networks. This design enables the network to have extremely high reliability. Any failure of a single network, including extreme situations such as network storms, will not affect the normal operation of the entire system. The two networks work simultaneously, and data is transmitted at the sending end at the same time, and filtered and redundantly processed at the receiving end. When switching between redundant networks, the switching time is almost zero, and data application will not be interrupted or delayed, ensuring the continuity and stability of data communication in industrial production processes. In addition, each network device is equipped with two independent network interfaces, and the failure of a single network port will not affect the normal operation of the system, further enhancing the reliability of network communication.

III. Control Modes and Algorithms

Diverse control modes: The controller offers a variety of control modes, including the classic PID control, the simple and direct ON/OFF control, and the cascade control suitable for complex control scenarios. The PID control mode can accurately adjust the control output according to the actual situation of the controlled object by adjusting the three parameters of proportionality, integral, and derivative, effectively suppressing system fluctuations and keeping the controlled variable stable near the set value. It is widely used in the control of various physical quantities such as temperature, pressure, and flow. The ON/OFF control mode is simple and direct, suitable for scenarios where the control accuracy requirement is not high but the equipment needs to be started and stopped quickly. The cascade control mode realizes hierarchical control of complex systems by cascading multiple controllers, which can better meet the needs of industrial process control with multiple variables and strong coupling.

IV. Application Scenarios

Energy field: The USIO21 plays an important role in power generation and distribution systems. In the power generation link, it can precisely control parameters such as the speed, voltage, and frequency of generators, ensuring the stable operation of power generation equipment and improving power generation efficiency. Through real-time collection and analysis of various sensor data, and using advanced control algorithms, it can timely adjust the operating status of equipment to cope with different load demands. In the power distribution system, the USIO21 can intelligently manage power distribution, monitor parameters such as voltage, current, and power factor of the power grid, timely detect and solve power faults, and ensure the reliability and stability of power supply.

Water treatment industry: In water and sewage treatment plants, the USIO21 is used to control the entire treatment process. In the water treatment process, it is necessary to precisely control parameters such as water flow, pressure, and water quality to ensure that the treated water meets the corresponding standards. For example, in the filtration link, the flow of the water pump is precisely adjusted through the PID control mode to ensure the stability of the filtration effect; in the disinfection link, advanced control algorithms are used to real-time adjust the dosage of disinfectants according to changes in water quality, ensuring the disinfection effect while avoiding excessive use of disinfectants. In terms of sewage treatment, the USIO21 can precisely control the biochemical treatment process of sewage, adjust parameters such as aeration volume and sludge reflux ratio, improve sewage treatment efficiency, and reduce treatment costs.

V. Product Advantages

High reliability: From hardware design to software algorithms, the USIO21 fully considers reliability factors. In terms of hardware, high-quality electronic components are used, which have undergone strict screening and testing to ensure stable operation in harsh industrial environments. Its redundant network design, multiple power protection measures, and robust shell design have greatly improved the anti-interference ability and stability of the equipment. In terms of software, advanced fault diagnosis and fault-tolerant mechanisms can real-time monitor the operating status of the system. Once a fault is found, it can timely self-repair or alarm to ensure the continuous operation of the system.

Strong expandability: The rich interfaces and flexible software architecture enable the USIO21 to have strong expandability. Users can conveniently add or replace I/O modules according to actual needs, such as analog input/output modules, digital input/output modules, relay modules, etc., to adapt to different control objects and application scenarios. At the same time, by supporting multiple communication protocols and network interfaces, it can be easily integrated with other devices to build large-scale and complex industrial automation control systems.