Configuration Dialog Box (D2000/Mathematical Data Processing/Eval Tags)
Eval tags - configuration dialog box
Editing of all objects in the process D2000 CNF is being performed in the configuration dialog box, a specific part of which is common for all editable objects and another part depends on the type of edited object.
The configuration dialog box of eval tags consists of several parts (tabs) that contain similar parameters.
General properties
Description
A text string describing the eval tag. Maximum: 128 characters.
Possibility to use the Dictionary (to open press CTRL+L).
Status Text
Defines a status text for the eval tag. The status text allows redefining values' identifications of the eval tag.
Transformation palette
Selection of an index to transformation palette. See the topic Transformation palette.
Value type
Value type selection of the eval tag. Admissible value types are listed in the following table.
Identification | Eval tag value type |
|---|---|
De | Logical value |
Ce | Integer value |
Ae | Analog value |
TmA | Absolute Time |
TmR | Time interval - relative time |
Technical units
Technical units of the eval tag. Maximum: 12 characters. Possibility to use the Dictionary (to open press CTRL+L).
Limits
Technological limits may be defined for eval tags of the Ce - integer, Ae - analog and TmR - time interval type. There are four limits: VHL, HL, LL and VLL. The limit may be specified either directly - by entering a value into the input field, or its value may be defined by a system object (dynamic limit) - the button placed right from the input field.
VHL | Very High Limit - the highest limit |
HL | High Limit - high limit |
LL | Low Limit - low limit |
VLL | Very Low Limit - the lowest limit |
Values of individual limits determine the state of the eval tag according to the value. The relation eval tag value - limits gives 6 possible states.
Limit | Object state according to relation Value- Limit |
|---|---|
| Above VHL (object value > VHL) |
VHL |
|
| Above HL (HL < object value < VHL) |
HL |
|
| Normal (LL < object value < HL) |
LL |
|
| Bellow LL (VLL < object value < LL) |
VLL |
|
| Bellow VLL (object value < VLL) |
As the limits can be dynamic (determined by the object value), a situation may occur, when the condition VLL<LL<HL<VHL is not met (the limits crossing). The eval tag is then in the state Limit Problem.
Process alarms
