PSO Fixed Distance Pulse Output
Demonstrates generating a sequence of pulses each time the axis moves a fixed distance.
// PSO Fixed Distance Pulse Output Example: // Demonstrates generating a sequence of pulses each time the axis moves a fixed distance. // To help you visualize the behavior of the PSO output generated by this configuration, the pulse times used in this program are // longer than would be typical and this program triggers data collection. You can use the Data Visualizer to collect the // "OutputActive" bit of the "Pso Status" signal and the Position Feedback signal. To see the complete output from this program, // you must collect data at a period of 1 msec and a time to collect of at least 4000 msec. program var $axis as axis = X // Set incremental mode. SetupTaskTargetMode(TargetMode.Incremental) // Enable and home the axis. Enable($axis) Home($axis) // Reset all PSO configuration. PsoReset($axis) // Configure the distance module to track primary feedback. PsoDistanceConfigureInputs($axis, [PsoDistanceInput.XC4PrimaryFeedback]) // Configure the distance module to generate an event every 10 units. // To account for differences between position feedback and emulated quadrature resolution caused by the EmulatedQuadratureDivider parameter, divide the distance by the value of this parameter. PsoDistanceConfigureFixedDistance($axis, Round(UnitsToCounts($axis, 10) / ParameterGetAxisValue($axis, AxisParameter.PrimaryEmulatedQuadratureDivider))) // Enable the distance counter. PsoDistanceCounterOn($axis) // Enable distance events. PsoDistanceEventsOn($axis); // Configure waveform module in pulse mode: 3 periods per event, 20 ms total time, 10 ms on time (50% duty cycle). PsoWaveformConfigureMode($axis, PsoWaveformMode.Pulse) PsoWaveformConfigurePulseFixedTotalTime($axis, 20000) PsoWaveformConfigurePulseFixedOnTime($axis, 10000) PsoWaveformConfigurePulseFixedCount($axis, 3) PsoWaveformApplyPulseConfiguration($axis) PsoWaveformOn($axis) // Select the waveform module output as the PSO output source. PsoOutputConfigureSource($axis, PsoOutputSource.Waveform) // Trigger Data Collection. AppDataCollectionSnapshot() // Move the axis 35 units, expecting 3 events. MoveLinear($axis, 35) // Disable the axis. Disable($axis) // Stop Data Collection. AppDataCollectionStop() end