===== Field value from log data ======

==== fh( fieldno, seconds ) ====

Return the field value from the log data, from ''seconds'' ago.

=== Description ===

<code>fh( fieldno, seconds )</code>

This function returns the logged value of a given field, from ''seconds'' ago. If the field is configured for faster logging than the default 10 minutes, the fh function will attempt to fetch the data from the 'fast log' buffer.

If no data can be found, the function will return 0.

//This function is available in firmware 21060101 and newer//

=== Parameters ===

| ''fieldno'' | Field number (1 through 90) |
| ''seconds'' | Number of seconds back in time from where the data is fetched |

=== Return value ===

Returns the value from the log buffer.

If no data can be found, the function returns 0.

=== Example usage ===

<code>fh(15, 3600)</code>

//The above returns the data from field 15, 1h ago//