Integrated machine speed signal waveform capture

A system comprising:

• a rotating machine having a speed control system comprising:
• a speed sensor coupled to the rotating machine and configured to measure a speed of the rotating machine;
• detection circuitry in communication with and magnetically isolated from the speed sensor, the detection circuitry comprising a first output and a second output, the detection circuitry configured to receive waveforms measured by the speed sensor, provide a first output signal comprising data representing the waveforms to the first output, and provide a second output signal comprising the waveforms to the second output, the second output being isolated from the first output such that data communications at the second output do not interfere with communications on the first output;
• control circuitry coupled to the first output of the detection circuitry, the control circuitry configured to control one or more operations of the rotating machine responsive to the data from the detection circuitry;
• and
• measurement circuitry coupled to the second output of the detection circuitry, the measurement circuitry configured to sample the waveforms from the detection circuitry and store individual samples in association with a respective timestamp indicating a time that the waveforms were received.

A machine control method comprising:

• measuring, by a speed sensor, waveforms indicative of a speed of a rotating machine;
• receiving the waveforms from the speed sensor and providing a first output signal comprising data representing the waveforms to a first signal path and providing a second output signal comprising the waveforms to a second signal path, wherein the second signal path is isolated from the first signal path such that data communications at the second signal path do not interfere with communications on the first signal path;
• controlling, responsive to the data received along the first signal path, one or more operations of the rotating machine;
• storing, the data received along the second signal path, individual samples of the data in association with a respective timestamp indicating a time that the data was received.