Gentlemen, I hooked the scope to ppmc.0.encoder.02.index-enable and ppmc.0.encoder.02.position. The position trace showed rising as it traveled from left to right and at the index-enable pulse the position trace showed falling as it traveled from left to right until it reached zero. I could vary the angle of the falling slope of the position trace by changing the rapid travel speed of the axis. The position trace did not fall to zero at the falling edge of the index-enable pulse. Thanks Stuart
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