Control system based on profibus redundant network topological structure and switching method of control system
A technology of redundant network and control system, applied in transmission system, comprehensive factory control, digital transmission system, etc., can solve the problem of not having bus control rights, etc., to enhance stability and redundancy, enhance reliability, reduce The effect of risk cost
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[0040] based on the following Figure 3 ~ Figure 5 , specifically explain the preferred embodiment of the present invention.
[0041] Such as image 3 As shown, it is a schematic diagram of a control system based on a fieldbus redundant network topology provided by the present invention. The control system includes a main control dp network 11 and a hot standby dp network 22. The main control dp network 11 includes a main control dp network 11 The control master station 1 and several master control slave stations (1 to n+1), the hot standby dp network 22 includes the hot standby master station 2 and several hot standby slave stations (n+2 to 2n+2).
[0042] The master control master station 1 and one of the hot standby slave stations 2n+2, as two master control dp nodes, communicate with each other through the system internal bus to form a master control system, and the master control master station 1 acts as a master control The master station of the dp network 11, the hot ...
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