Device for realizing real-time updating of database and data real-time updating method in boiler control based on OPC (OLE for Process Control) server
A boiler control and real-time update technology, applied in electrical digital data processing, special data processing applications, instruments, etc., to achieve the effect of convenient and fast data insertion operation, small data volume, and flexible data transmission
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[0051] Specific implementation mode 1: the following combination figure 1 Describe this embodiment.
[0052] The real-time database based on the OPC server in the boiler control device realizes the real-time data update, which includes the upper computer 1, the real-time database 2 with built-in OPC server and multiple lower computers 3;
[0053] The upper computer 1 is connected with the real-time database 2 with the built-in OPC server through an OPC interface, and the real-time database 2 with the built-in OPC server is connected with multiple lower computers 3 through a communication bus.
Example Embodiment
[0054] Specific implementation manner 2: the following combination figure 1 This embodiment is described, which is a further description of the first embodiment.
[0055] The real-time database based on the OPC server in the boiler control is a device for real-time data updating. The data transmitted by each lower computer 3 to the real-time database 2 with the built-in OPC server includes the read and write flag bits, the CRC check bit, and the address bits of the lower computer 3 And the data value information of the lower computer 3.
Example Embodiment
[0056] Specific implementation manner three: the following combination figure 1 This embodiment is described, which is a further description of the first embodiment.
[0057] The real-time database based on the OPC server in the boiler control is a device for real-time data updating. The data bus 4 is a serial RS485 communication bus.
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