Field value from remote unit [ezeio documentation]

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===== Field value from remote unit ======

==== =XYZ-987,12 ====

Return recent value of a field from a remote unit

=== Description ===

<code>={serial},{fieldno}</code>

This function returns the most recent value of a field on a remote unit.

Note that the data is updated every 10 minutes (fixed), and that the two units must be assigned to the same account.

=== Parameters ===

| ''serial'' | Serial number of remote ezeio |
| ''fieldno'' | Field number on remote ezeio (1 through 90) |

=== Return value ===

Returns the most recent value of the field (updates every 10 minutes).

=== Example usage ===

<code>=ABC-123,4   // returns the value of field #4 on unit ABC-123</code> 

Unlike other field expressions, this expression cannot be combined with other math. It must be the only thing in the field expression, and it only works as a field data expression. It will not work in alarms or reverse expressions.