The external start (/CSTA) input allows motion to be started by taking the /CSTA input low.

By default, the external start input is disabled (EXST=0), which will allow motion to start immediately upon receipt of any motion command.  If the external start input is enabled (EXST=1), then any motion command sent will wait for the /CSTA input to go low before motion is started.  The Commander core can buffer up to three motions, on a first-in first-out order. They will start one at a time each time the /CSTA input goes low.

The logical input of the /CSTA input cannot be changed.

ASCII

EXST

Standalone

⎯

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