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In addition, various variable directory screens, operation guidance screens, fault diagnosis screens, engineer maintenance screens, and system configuration screens can also be displayed as needed. Generation of Historical Database

All DCS supports historical data storage and trend display functions. Historical databases are typically generated by users without the need for programming, using screen editing and compilation technology to generate a data file that defines the structure and scope of each historical data record.

In historical databases, data is generally divided into groups, with the same data type and sampling time within each group. Define the relevant information of each data point during generation.

Report Generation

The report printing function of the DCS operator station is also configured through the report generation section in the configuration software, and there are significant differences in the report printing function between different DCS. Generally speaking, DCS supports two types of report printing functions: periodic report printing and trigger report printing. Users can generate different report forms according to their needs and preferences.

The biggest characteristic of DCS in control is that it relies on the flexible configuration of various control and calculation modules, which can achieve diverse control strategies to meet the needs of different situations, making the implementation of quite cumbersome and complex propositions in unit combination instruments simple

With the requirements of high flexibility and high efficiency put forward by enterprises, control schemes based on classical control theory are no longer suitable. After the introduction and successful application of advanced control strategies represented by multivariable predictive control, advanced process control has received widespread attention in the process industry.