Details on AC configuration
These data point types must only be changed using the configuration panels described before, otherwise inconsistencies will arise!
Internal data point _AcStructure
The parameters of the AC type compressions are saved in an internal data point of type _AcStructure. The data point elements have the following meaning:
Table: Meaning of the data point elements
| Element name | Type | Meaning |
|---|---|---|
| general.intervals | dyn_int | all predefined intervals in the seconds format. |
| types.actype | dyn_bool | TRUE if the data point type was created with the compression configuration panel. |
| types.applied | dyn_bool | TRUE if the parameters of the data point type have been assigned to all data points. |
| types.archives | dyn_string | Name of the archive used |
| types.exceptions | dyn_ string | List of the data points that are not meant to assume the parameter settings. |
| types.functions | dyn_ string | The statistical functions set at the compression levels. |
| types.intervals | dyn_ int | The time interval of the compression levels in seconds. |
| types.names | dyn_ string | Name of the data point type created in the compression configuration. |
| types.sources | dyn_ string | Source for the statistical function. |
| types.vartypes | dyn_ int | 0 = digital / 1 = analog. |
All data point leaves of the node "types" have the same number of elements; each AC type has a line in the dyn fields.
Structure of the AC data point types
The data point types created in these configuration panels (AC types) have a permanently defined structure containing fixed structure elements and variable structure elements defined by the configuration.
| Layer 1 | Layer 2 | Layer 3 |
|---|---|---|
| AcType | ||
| value | ||
| C1 | ||
| MIN | ||
| MAX | ||
| ... | ||
| C2 | MIN | |
| MAX | ||
| .... | ||
| .... |
.value always exists. This element takes the source values.
.C1.MIN, for example, contains the statistical function Minimum for compression level 1. The name of the end leaves is always the same as the statistical functions used. Level 1 (C1) uses either the leaf .value as source or has the pseudo-function "MAN" (manual input). Level 3 uses the values from level 1 or 2 for its source.
For manual input, the value is set manually via the Laboratory Values panel (see Laboratory values panel).
