Básico da função de programação SCADA, aplicação

Basic of SCADA programming function, application

SCADA Programming Basics – Function, Application

SCADA Basics:

What is SCADA?

In the process industry, many companies are opting for manufacturing resource planning (MRP) system or enterprise resource planning (ERP) in the business to

1. Elimination of duplicate data system across the company.

2. Provide cost-effective preventative maintenance scheduling.

3. Provide more accurate and timely data to support business processes.

To achieve the above objectives, supervisory control system is designed at standard level as well as proprietary level. This is called SCADA. SCADA stands for Supervisory Control and Data Acquisition.

  • As the name suggests, it is not a total control system, but rather focused on the supervisory level.
  • In fact, it is a software package, that is, positioned on top of the hardware to which it is connected. In general, this hardware is the programmable logic controller, programmable automation controller, or other commercial hardware modules.
  • Thus, SCADA is a central control system that monitors and controls the entire site or system.
  • For example, a PLC may control the flow of cooling water through part of the industrial process, but the SCADA system may allow the operator to change the control set point downward and will allow alarm conditions such as loss of cooling water flow. high temperature, are recorded and displayed.
SCADA interface SCADA interface

What are the functions of SCADA systems?

Supervisory control and data acquisition systems are useful management and control tools for public utilities.
The modern SCADA system can incorporate the following functions

  • System monitoring
  • System control
  • System administration
  • Demand-side management

    • 1. System Monitoring:

    • The entire SCADA system provides real-time monitoring of the status of the utility system.
    • Most SCADA systems have sufficient accuracy for measurement.
    • Includes detection of local and remote signal status and event sequence status.

    2. System Control:

    • These controls include corrective control, preventive control and emergency control.
    • Corrective control is activated when system parameters move beyond setpoint values ​​toward higher or lower levels.
    • Preventive control is actually a kind of protective control that does not allow unexpected states of system parameters to accumulate to lead to worse levels.
    • Emergency control is the type of system control in which the normal operation of the system is suspended and warning signals are generated to draw the operator's attention or is carried out automatically.

    3. System management:

    • The SCADA system collects real-time data for future use and analysis.
    • This data is then used for offline system analysis of losses, load conditions and fault frequencies.
    • Recorded event sequence data can be quickly analyzed to identify the source of electrical faults.

    4. Demand side management:

    • This function is applicable for power management and electrical supply scheduling.
    • Using remote and automatic control of circuit breakers, the SCADA system can be used in load management to reduce peak energy consumption times.

    Explain the benefits of SCADA.

  • The SCADA system can help industries save time and money.
  • It can eliminate the need for frequent site visits for personal inspection, adjustments and data collection.
  • SCADA software allows you to monitor the operation in real time.
  • You can flexibly modify the current system.
  • It can automatically generate reports and troubleshooting tasks.
  • Improves configuration efficiency and reduces operating costs.

    • What are the applications of SCADA?

    • Generation, transmission and distribution of electrical energy: Here, electrical utilities use the SCADA system to detect the current flow and line voltage, to monitor the operation of circuit breakers.
    • Water and Sewer: State and municipal water utilities use SCADA to monitor and regulate water flow, reservoir levels, pipe pressure, and other factors.
    • Buildings, Facilities, and Environments: Facilities managers use SCADA to control refrigeration units, lighting, entry, and parking systems.
    • Manufacturing industry: SCADA systems manage parts inventories, regulate industrial automation and robots.
    • Traffic signals: SCADA regulates traffic lights, controls traffic flow, and detects out-of-order signals.

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