Function - Checks if the input value is not a number.
Inputs
|
Input |
Data Type |
Range |
Unit |
Default |
Description |
|---|---|---|---|---|---|
|
IN |
LREAL |
|
|
|
Floating point value. |
Outputs
|
Output |
Data Type |
Range |
Unit |
Description |
|---|---|---|---|---|
|
Q |
BOOL |
|
|
TRUE if the input value is not a number. |
Remarks
- The IEEE standard for floating point value encoding has specific values for:
- Infinite - the result of a division by 0 (zero).
- Not a number - the result of 0 / 0.
- The DIV operations are interpreted and never result in a division by 0 (zero).
- An invalid value may come through an IO driver or protocol.
FBD Language Example
FFLD Language Example
Not available.
IL Language Example
Not available.
ST Language Example
Not available.
