08-08-2023 дата публикации
Номер: CN116560295A
Принадлежит:
The invention provides a switching method and device and an upper computer, and relates to the field of automatic control. The switching method comprises the following steps: an upper computer receives a switching request; under the condition that the switching request is in the first mode, a first control request is sent to a programmable logic controller (PLC) system through a first IGS driver, so that an air compressor is controlled through the PLC system; and under the condition that the switching request is in the second mode, a second control request is sent to the PLC system through the first IGS driver, and the PLC system sends a third control request to the joint control system through the second IGS driver, so that the air compressor is controlled through the joint control system. According to the method and the device, on the premise of not increasing any hardware cost, safe and stable switching of the two systems can be realized at the lowest cost on the software level, and ...
Подробнее