When the control mode of Johnson's dynamic balance electric regulating valve is two-wire system, usually 0 means off, 1 means on. Therefore, when the valve control signal is 1, the valve opens; When the control signal is 0, the valve is closed. When the control mode of Johnson's dynamic balance electric regulating valve is three-wire system, the meanings of 0 and 1 represent the high and low levels of control signals. Generally, a high level (1) means on, and a low level (0) means off. Therefore, when the control signal is 1, the valve opens; When the control signal is 0, the valve is closed.

Johnson dynamic balance electric regulating valve 1 and 0 represent different meanings due to different installation methods and control systems, and cannot be generalized.