Modular water chilling unit control method
A technology for chillers and control methods, which is applied in the directions of comprehensive factory control, electrical program control, heating and ventilation control systems, etc., can solve the problems of slow data exchange time and affect outdoor unit control, etc., to improve stability and improve data exchange. time, the effect of reducing communication failures
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[0018] Assuming that the maximum number controlled by the centralized controller is 128, the address of the centralized controller is coded as 0, and the outdoor unit is coded consecutively starting from 1 to ensure the uniqueness of the addresses of the centralized controller and the outdoor unit. When the centralized controller is powered on, the sending address starts from 1 to the outdoor unit and reaches the maximum address of 128. When the address of the outdoor unit is the same as the sending address of the centralized controller, a response signal is fed back to the centralized controller. After the centralized controller sends all the addresses, it counts the number of response signals, for example, 120. At this time, the centralized controller sends the address code to the outdoor unit again, and counts the number of response signals again. If it is also 120, then It can be determined that the number of outdoor units is now 120. Afterwards, when the centralized contro...
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