Назначение системы
Назначение системы
The dispatch control system for technological parameters of water supply and wastewater networks of Tomskvodokanal LLC is designed for:
- Continuous monitoring of technological processes (pressure, tank levels, flow rates, equipment status, power supply);
- Timely notification of dispatchers about emergency and warning situations;
- Archiving and displaying data for operational analysis;
- Providing restricted access to information.
Particular attention is paid to uninterrupted operation, as shutdowns or system failures require prior notification of the public and quick response.
1. Monitoring, displaying, and archiving data of technological parameters for water supply and wastewater systems;
2. Providing dispatcher with emergency and warning messages in case of:
- Controlled parameters exceeding permissible operating ranges
- Abnormal equipment operation
- Threat of emergency situations
- Unauthorized access to company facilities
3. Ensuring controlled access to the SCADA system server;
4. Monitoring and diagnosing the status of communication channels with middle and lower-level equipment (controllers, data acquisition modules, sensors).
Внедрение новой системы также включало ряд других целей:
Решение
The upper level at this stage represents a virtual data acquisition and storage server deployed in the Hyper-V virtualization environment. It sequentially queries middle-level equipment in Master-Slave mode using the Modbus TCP protocol and specialized equipment manufacturer protocols (primarily Energomera), supporting data exchange via TCP/IP. The most critical nodes of the technological network have communication channel redundancy at the physical level (fiber optic and GPRS modems), while intermediate nodes use data transmission only via GPRS modem. Modbus TCP polling is conducted by the MasterOPC Universal Modbus Server for Linux with OPC UA support, simplifying scaling and processing signals from middle-level equipment.
For data visualization and access to archived data, web browsers of workstations are used by the dispatching service, security service, maintenance, and emergency departments of the enterprise. Each department has its own specific list of users and passwords, limiting the access level.
The middle level is represented by local automation systems of stations based on programmable logic and specialized controllers (Schneider Electric, Siemens, OWEN, Segnetic, ICP DAS, DNA, Grundfos, WILO) supporting exchange via MODBUS TCP and MODBUS RTU protocols directly with local automation systems (directly or through proprietary protocol converters) or having the ability to connect remote data acquisition and transmission modules, mainly manufactured by OWEN, providing equipment status and technological parameter information.
The lower level consists of sensors and remote I/O modules directly recording technological parameters. Currently, the system polls 8,527 points with the capability to expand up to 60,000, and the selected star topology optimally matches the specifics of the used protocols and communication organization at the enterprise.
The deployment of the virtual server was carried out on the RED OS platform using the MasterOPC Universal Modbus Server OPC server for Linux, which supports OPC UA. In parallel with supporting the existing system based on MasterSCADA 3.9 in the form of clients on dispatcher workstations running Windows 7 and an input/output server, the development of a new system was underway on the same MasterSCADA 4D platform. Testing using the MasterSCADA 4D Enterprise test version confirmed the stability and reliability of the solution, ensuring a smooth transition to the new system without downtime.
MasterSCADA 4D was chosen as the optimal solution, combining reasonable cost, support for domestic operating systems, required protocols, and the ability to deploy on virtual servers. Additional factors included a large amount of training material and the ability to deploy the server on the Linux operating system. These advantages not only met the technical requirements of the customer but also ensured high performance and system reliability during 24/7 operation.
Функции системы
ПО MasterSCADA, установленное на автоматизированных рабочих местах, предоставляет следующие функции:
Результат
Technical advantages achieved through the implementation of MPS Soft products:
1. Increased reliability, fault tolerance, and stability of the dispatch control and management system for water supply and wastewater processes.
2. Increased number of SCADA clients, enhanced оперативность of receiving information about critical technological parameters and emergency situations by the enterprise's duty services.
3. Implementation of a separate workstation for the operational duty officer of the enterprise's security service, which reduced the load on the emergency dispatch service.
4. Reduced time for eliminating emergency situations.
5. Utilization of a software product from a domestic manufacturer.
Commercial advantages achieved through the implementation of new MPS Soft products:
1. Enhanced data security for enterprise trade secrets.
2. Simplified acquisition of data on equipment operating hours and electricity consumption, facilitating easier equipment maintenance planning.
3. Increased volume and speed of obtaining information on process parameters, which reduced water losses during pipeline ruptures and simplified leak detection.