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Instruments are applied in chemical process SCADA systems.

Instruments are applied in chemical process SCADA systems.

Category: Chemical Industry

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Product Introduction:

In the chemical industry, SCADA systems serve as the "nervous center" of production operations, while the four key process parameter instruments—temperature, pressure, flow, and level—are the plant-wide "sensory nerves."

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The raw data provided by the four major process instruments—temperature, pressure, flow, and level—are processed sequentially within the SCADA system, ultimately transforming into valuable information.

1. Data Acquisition: SCADA polls or receives data from fieldbuses and controllers via drivers and IO servers.

2. Signal Processing: Perform filtering (noise removal) on the raw data, range conversion (e.g., converting 4-20mA to 0-1.0 MPa), linearization, and more.

3. Alarm Check: Compare the processed data with the preset alarm thresholds. If a threshold is triggered, immediately generate an alarm record and notify the operator.

4. Data Storage: Store historical data in a database for trend analysis, fault diagnosis, and report generation.

5. Visualization: Dynamically display information on the HMI screen in the form of simulated diagrams, trend curves, numerical values, bar graphs, and more.

6. Output Control: Operators issue setpoints or manual control commands via the HMI, and SCADA system transmits them to the lower-level controller or directly operates the valves.

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