Power grid security and stability control device and method for realizing man-machine interaction by utilizing MODBUS communication protocol
A stable control device and technology of stable control, applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve the problem that the internal communication of the stable control device has not yet used the MODBUS protocol, high product development and maintenance costs, and product development cycles. It can save development and maintenance costs, shorten the development cycle, and facilitate upgrades.
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[0022] The present invention mainly includes the following contents:
[0023] 1. Divide the power grid security and stability control device into "stability control function module" and "human-machine interface module", and select an industrial touch screen that supports MODBUS protocol as the human-machine interface module.
[0024] 2. The stability control function module and the man-machine interface module are connected through RS485, and the data transmission adopts the serial link MODBUS transmission protocol.
[0025] 3. Summarize and sort out the data communicated by the human-machine interface of the stability control device, classify it, and reasonably map the various data of the human-machine interface communication with the function codes of the MODBUS protocol.
[0026] 4. Adopt MODBUS RTU mode to realize data communication between "stable control function module" and "human-machine interface module". The MODBUS communication program of the stability control func...
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