Dynamic Library Functions

Table of Contents

hist_access_buffer - accesses buffer elements using array-like syntax.

hist_buffer2array - generates an array from a binary buffer of historian data.

hist_buffer_id_destroy - destroys an interpolation query buffer.

hist_buffer_id_length - queries for the number of X-Y pairs.

hist_buffer_id_read - reads a buffer of data from the Cascade Historian.

hist_bufsize - sets the history buffer size.

hist_clip_buffer - clips Y values to fit within a range.

hist_count - counts the number of histories that match a pattern.

hist_deadband - sets the history value deadband.

hist_delete - removes a history from memory only.

hist_describe - describes a history's current configuration.

hist_disable - stops data recording.

hist_earliest - gives the earliest value in a history

hist_enable - activates data recording.

hist_exchange_buffer - swaps X and Y values.

hist_filebase - associates the history with a file for data storage.

hist_flush - writes buffered data to disk.

hist_gap_buffer - identifies and fills gaps in data that are too large for interpolation.

hist_history - creates a new history.

hist_interpolate - queries history data.

hist_interpolate_data - interpolates a history and returns data.

hist_latest - gives the latest value in a history

hist_length - finds the total number of values in a history.

hist_length_buffer - returns the number of X-Y pairs.

hist_list - finds the name of available histories.

hist_register - registers histories with the Cascade DataHub.

hist_scale_buffer - performs offset and scaling operations.

hist_stat_buffer - generates summary statistics on Y-values.

hist_unregister - unregisters histories with the Cascade DataHub.

hist_version - gets the version number of the Cascade Historian.