See alsoActivation, creation and deletion of temporary variables.
WebVue support - Yes.
For further information, see the Variables Tree book in the Application Explorer Help.
Starting with version 12 and the introduction of HMI variables, temporary variables created with this instruction are obsolete. The TEMPORARY_DB instruction is only kept for compatibility with existing projects and should not be used in new projects. When migrating a project, we recommend you to replace the use of temporary variables by HMI variables. To make it easier, you can create HMI variables by script using the instruction VARIABLE.
|
Mode |
Mnemonic |
Syntax |
| 0 | OFF | 1 |
| 1 | ON | 1 |
| 2 | ADDBIT | 2 |
| 3 | ADDREG | 3 |
| 4 | ADDTXT | 4 |
Syntax 1
IntVal = TEMPORARY_DB(Mode);
Return type: INTEGER.
Execution
|
Mode |
Mnemonic |
Action |
|
0 |
OFF |
The automatic creation of temporary variables is disabled. |
|
1 |
ON |
The automatic creation of temporary variables is enabled. Any variables referred to in an animation that do not exist in the Variables Tree are automatically created at the HMI level, not in the Variables Tree. |
|
|
|
Return: Always 1 |
Syntax 2
IntVal = TEMPORARY_DB(Mode, VarName, Title_1, Title_2);
|
Argument |
Meaning |
|
VarName |
The name for the temporary variable. Type STR |
|
Title_1 |
The title for the temporary variable in the primary language. Type STR |
|
Title_2 |
The title for the temporary variable in the alternative language. Type STR |
Return type: INTEGER.
Execution
|
Mode |
Mnemonic |
Action |
|
2 |
ADDBIT |
A temporary bit variable is created using the supplied attributes. Return: 1 if successful, else 0 (if the variable already exists, syntax error...). |
Syntax 3
IntVal = TEMPORARY_DB(Mode, VarName, Title_1, Title_2, Min, Max, Format, Units);
Return type: INTEGER.
|
Argument |
Meaning |
|
VarName |
The name for the temporary variable. Type STR. |
|
Title_1 |
The title for the temporary variable in the primary language. Type STR. |
|
Min |
The minimum value of the range of the register. Any numeric type. |
|
Max |
The maximum value of the range of the register. Any numeric type. |
|
Format |
The display format for the register, for example ###.##. Type STR. |
|
Units |
The unit text for the register, for example "DegC". Type STR. |
Execution
|
Mode |
Mnemonic |
Action |
|
3 |
ADDREG |
A temporary register variable is created using the supplied attributes. Return: 1 if successful, else 0 if the variable already exists, syntax error etc. |
Syntax 4
IntVal = TEMPORARY_DB(Mode, VarName, Title_1, Title_2);
Return type: INTEGER.
|
Argument |
Meaning |
|
VarName |
The name for the temporary variable. Type STR |
|
Title_1 |
The title for the temporary variable in the primary language. Type STR |
|
Title_2 |
The title for the temporary variable in the alternative language. Type STR |
Execution
|
Mode |
Mnemonic |
Action |
|
4 |
ADDTXT |
A temporary text variable is created using the supplied attributes. Return: 1 if successful, else 0 if the variable already exists, syntax error etc. |
Example
DIM ConstVarName As Str;
DIM VarName As Str;
DIM Index As Integer;
ConstVarName = "TempBit"
'Create 100 bit variables: TempBit0 to TempBit99
For(Index = 0; Index < 100; Index ++)
VarName = AddString(ConstVarName, TOC(Index));
Temporary_DB("ADDBIT", VarName, "", "");
Next
For a further example, select the Example link above.