calc_last_message

To get a sensor value from the last message, use the unit/calc_last_message command:

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svc=unit/calc_last_message&params={"unitId":<long>,
				   "sensors":[<long>],
				   "flags":<uint>}

Parameters

The required parameters are marked with an asterisk (*).

Parameter	Description
unitId*	Unit ID.
sensors	Array of sensor IDs. If this parameter is not specified or empty, the values of all sensors are returned.
flags	Flags. If this parameter is set to 1, the sensor value is calculated using the last valid parameter value.

If the request is completed successfully, the sensor value is returned.

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{
	<text>:<double|text>,	/* sensor ID: sensor value */
	...
}

Otherwise, an error code is returned.

Parameter	Description
4	Failed to fetch the unit because the user doesn't have the required access right (ADF_ACL_AVL_UNIT_VIEW_SENSORS).
7	Failed to fetch the unit sensors.