D2000 CfgSynchro - states of object
1. Possible states of objects and their graphical representation
| State | Graphical representation | Description |
|---|---|---|
| None | ||
| New |  |
A new object. There is no such object in the other database with the same UID, or it may have existed there but it was deleted |
| Deleted |  |
The object has been deleted |
| Modified |  |
The object has been modified |
| Constant |  |
The object has not been modified |
2. All possible combinations of objects' states
(A - configuration database A, B - configuration database B)
| State of A | State of B | Object's state description |
|---|---|---|
| New | None | A new object in A. |
| New | Deleted | The object was deleted in B. It then appears in A as a new one. |
| Constant | Constant | The object exists in both databases without a change. |
| Constant | Modified | The object exists in both databases. Time of the configuration's change in B is greater than in A. The object was modified in B. |
| Modified | Constant | The object exists in both databases. Time of the configuration's change in A is greater than in B. The object was modified in A . |
| Deleted | None | Object was created in A and was deleted afterwards. |
| Deleted | Deleted | Object was deleted in A as well as in B. |
| Deleted | New | Object was deleted in A. It then appears in B as a new one. |
| None | New | A new object in B. |
| None | Deleted | Object was created in B and was deleted afterwards. |
| Modified | Modified | The time of configuration's change is same, but a difference in * start values was detected or in state of blocking alarms,... |
* During a normal run of an application changes in configuration databases are performed due to changes in properties of objects that can be done by means of process D2000 CNF as well without changing the time of object's configuration. The following table shows the list and description of these settings:
| Type of object | Changed property | Description |
|---|---|---|
| Eval tag | Blocking of process alarms | Blocking of process alarms |
| I/O tag | Blocking of process alarms | Blocking of process alarms |
|
Default input value To use default input value To control input value manually To control output value manually Start value |
Controlling of default values | |
| Structured variable |
Change of structure definition Change of start value of any item of the structure |
|
| Switch | Blocking of process alarms | Blocking of process alarms |
| Change of default value | ||
| User variable | Change of start value | |
| User | Password | Change of password in D2000 HI process. |
Note: Start values are altered when object's value changes (or the fields of a structured variable) if saving of start values is set.
3. All possible mutual combinations of objects' states - graphical overview
It is worth pointing out to the fact that the table is symmetric by the diagonal leading from the top left-hand corner to the bottom right-hand corner.
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