History Logger v2.0

The History Logger block maintains an ordered and (optionally) time-stamped history of text messages. This is normally used in conjunction with multi-line entries in dashboards, such as history lists, where a fixed size list is used to contain a rolling window of constantly changing information.

Parameter	Description
entry	An entry to be added to the history.
timestamps	Index for an add, clear or retrieve operation.
most recent first	Set to true to order the history so that the most recent element is first, false for least recent first.
max size	Maximum number of entries to retain - set to 0 to retain all entries.
delimiter	String to separate history entries when output by the block. If not specified, the default is "\n" (linefeed).
time format	String format to display time-stamps, if required. A default format is used if this is not set.

Operation	Description
add	Adds the content of entry to the history - an output update will automatically be produced.
clear	Clears the history.
retrieve	Causes the latest history to be output from the block as a single, delimiter-separated string.

Feed	Field	Description
history	size	Number of entries in the history.
history	text	Text representation of the history, where each entry is optionally time-stamped and separated by the delimiter string.