System and method for controlling an electro-pneumatic device

摘要

An electro-pneumatic device includes a sensor portion and a valve portion. The sensor portion, which includes a sensor, receives and transmits electronic control signals of a plurality of frequencies. The sensor portion is powered by a first of the frequencies of the received control signals. The valve portion electrically communicates with the sensor. The valve portion includes a valve that is alternately set to an open state and a closed state based on a second of the plurality of frequencies of the received control signals. The sensor senses a delivery pressure of the valve and transmits electronic data signals representing the delivery pressure at a third of the plurality of frequencies.

主权项

1. An electro-pneumatic device, comprising:
a sensor portion, including a sensor, receiving and transmitting electronic control signals of a plurality of frequencies via a power and control bus, the sensor portion being powered by a first of the frequencies of the control signals received by the sensor portion during a first time period; and a valve portion electrically communicating with the sensor via the power and control bus, the valve portion including a valve being alternately set to an open state and a closed state based on a second of the plurality of frequencies of the received control signals, the sensor sensing a delivery pressure of the valve and transmitting electronic data signals representing the delivery pressure at a third of the plurality of frequencies, the first frequency being faster than the second frequency, the third frequency being faster than the first frequency, the third frequency being superimposed with the first frequency in the control signals received by the sensor portion during a second time period, which is after the first time period, and the third frequency being superimposed with the second frequency in the control signals received by the sensor portion during a third time period which is after the second time period.