Notation
Summary
This table contains all the base class values which are also saved in the *.bcl files.
This table is read-only. You can control the amount of data saved in this table on the Files tab in System Configuration.
|
Field name |
SQL type |
Description |
GUI name |
|---|---|---|---|
|
AREA |
CHAR (31) |
The name of the area in which the object specified below resides |
Area name in Area Properties dialog box |
|
ENAME |
CHAR (31) |
Object name |
Name in Definition of Object dialog box or in object properties dialog box |
|
IDX |
INTEGER |
Index into the table for table objects, 0 otherwise. |
|
|
REDUCTION |
INTEGER |
A number identifying the data reduction method: 1 = Average 2 = Minimum 3 = Maximum 4 = Sum 5 = Actual 6 = Change 7 = Difference |
Data reduction on Data Management Definitions tab |
|
DATE |
TIMESTAMP |
The time of the base class value |
- |
|
VALUE |
DOUBLE |
The reduced value (which is saved in the *.bcl file) |
- |
|
LIMIT |
INTEGER |
For future use OPC |
- |
|
STATUS |
INTEGER |
For future use OPC |
- |
|
QUALITY |
INTEGER |
For future use OPC |
- |
|
OUT |
INTEGER |
For future use OPC |
- |
|
BCLASS |
INTEGER |
The base class this value belongs to. If you wish, you may specify this for performance when querying for values in a single base class. |
|
See Also