DAPL Process Control Commands

Process control commands are used for system monitoring and regulation.

A special command provides control of processing priority, allowing intensive number crunching tasks and responsive real-time tasks to coexist.

PRIORITY

Establish the execution priority of all tasks in the group.

Real-time and control commands generate responses to individual events with minimum time delay.

PID

PID (Proportional - Integral - Derivative) feedback control, plus several common extensions.

PIDRAMP

Pre-computed smoothed input transitions for PID and feedforward controls.

PIDSCRAM

Perform shutdown overrides to safe output level before shutdown.

PWM

Convert amplitude data to pulse width modulation data for on-off control of slow analog processes.

QDECODE

Software based decoding of optical encoder signals for relatively slow rotating systems.

ALARM

Post a digital alarm if the signal level exceeds an adjustable operating range.