1.1 EPICS Toolkit Programs by Category

1.1.1 Configuration Save and Restore

• sddscasr() — a new configuration save and restore program with many unique features.
• sddscaramp() — Performs ramping of process variables between the present state and the states in one or more SDDS files.
• toggle() — Alternates between two sets of process variable values stored in snapshot files at a regular interval. Example application: Alternate between two configurations of an accelerator for debugging accelerator performance.

1.1.2 Data Collecting

• cavget() — Retrieves values of process variables using Channel Access or PVAccess.
• sddssnapshot() — Reads values of process variables and writes them to a snapshot file. Example application: Taking successive sets of data.
• sddsmonitor() — Reads values of process variables and writes them to a file at regular intervals. Example application: archiving of system performance, investigation of glitches.
• sddsglitchlogger() — Reads values of process variables and writes them to a file or multifile at regular intervals when certain trigger occurs. Example application: archiving of system performance, inverstigation of transition-based, glitch-based and alarmed-based triggers.
• sddsvmonitor() — Reads values of process variables and writes them to a file at regular intervals. The list of readback process variables is constructed by multiplying a rootname list and a suffix list. Example application: archiving of system performance, investigation of glitches.
• sddswmonitor() — Reads values of waveform and scalar process variables and writes them to a file at regular intervals. Example application: archiving of system performance, investigation of glitches.
• sddsstatmon() — Reads values of process variables, calculates statistics and writes them to a file at regular intervals. Example application: archiving of system performance.
• sddssynchlog() — Reads values of process variables synchronously. Example application: Analyze for correlations between various systems.
• sddsexperiment() — Varies process variables and measures process variables, with optional statistical analysis. Example application: investigation of unforeseen physical dependences, measure corrector-bpm response matrices.
• sddsvexperiment() — Varies process variables and measures process variables, with optional statistical analysis. The list of readback process variables is constructed by multiplying a rootname list and a suffix list. Example application: investigation of unforeseen physical dependences, measure corrector-bpm response matrices.
• sddsalarmlog() — Collects alarm status of a list of process variables. Example applications: Logging alarms for a particular accelerator system over a period of many runs in order to compile a history of faults statistics.
• sddslogger() — Reads values of process variables and writes them to a file at regular intervals. Similar to sddsmonitor but it generates less network traffic.
• sddslogonchange() — Records only the values of process variables that change. This reduces the output file size if process variables do not change often.

1.1.3 Control

• cavput() — Sets values of process variables using Channel Access or PVAccess.
• cawait() — Waits for process variables to satisfy specified conditions.
• sddscontrollaw() — Reads a matrix for a control law-type equation and regulates the values of a list of readback process variables by applying corrections to another list of process variables. Example application: removing slow drifts in accelerators (such as the energy of a linac beam), trajectory and orbit correction.
• squishPVs() — Minimizes the absolute values of a set of readback process variables by varying setpoint process variables which have a physical influence on the readback process variables. Example application: Reducing the size of the trajectory in a beamline without knowledge of the response matrix between bpms and correctors.
• sddsoptimize() —Minimizes or maximizes the RMS of a set of readback process variables by automatically varying setpoint process variables (or knobs composed of setpoint PVs), which have a physical influence on the readback process variables, through simplex or 1dscan method.
• sddspvtest() —tests the process variable given by the inputfile are out-of-range or not and sets the number of out-of-range process variables to a control PV.