# Curve\_10XY\_Real\_Real
## `Curve_10XY_Real_Real` (FB)
FUNCTION\_BLOCK Curve\_10XY\_Real\_Real
### Short description
> Input of 10 value pairs (support points each with an X and Y value)\
> Boundary conditions:
>
> * The X values must be consecutive, either increasing or decreasing
> * Two consecutive X values must not be equal
>
> \
> Typical application: Passing a characteristic curve with 10 support points
### Representation
### Interfaces
#### Outputs
| Name | Data type | Value range | Initial value | Function |
| ----------------------------- | ------------------- | ----------- | ------------- | -------------------------------------------------------------------------------- |
|
arData\_Real\_Real
| stCurve\_Real\_Real | | | Array with the support points (data type X-value: REAL, data type Y-value: REAL) |
|
xValidData
| BOOL | | FALSE | Validity of the data in the output array (TRUE = valid) |
|
xError
| BOOL | | FALSE | Error state of the entered support points (TRUE = error) |
#### Setpoints / parameters
| Name | Data type | Value range | Initial value | Function |
| ------------------- | --------- | ----------- | ------------- | -------------------------- |
|
rSP1\_X
| REAL | | 1 | Support point 1 - X value |
|
rSP1\_Y
| REAL | | 1 | Support point 1 - Y value |
|
rSP2\_X
| REAL | | 2 | Support point 2 - X value |
|
rSP2\_Y
| REAL | | 2 | Support point 2 - Y value |
|
rSP3\_X
| REAL | | 3 | Support point 3 - X value |
|
rSP3\_Y
| REAL | | 3 | Support point 3 - Y value |
|
rSP4\_X
| REAL | | 4 | Support point 4 - X value |
|
rSP4\_Y
| REAL | | 4 | Support point 4 - Y value |
|
rSP5\_X
| REAL | | 5 | Support point 5 - X value |
|
rSP5\_Y
| REAL | | 5 | Support point 5 - Y value |
|
rSP6\_X
| REAL | | 6 | Support point 6 - X value |
|
rSP6\_Y
| REAL | | 6 | Support point 6 - Y value |
|
rSP7\_X
| REAL | | 7 | Support point 7 - X value |
|
rSP7\_Y
| REAL | | 7 | Support point 7 - Y value |
|
rSP8\_X
| REAL | | 8 | Support point 8 - X value |
|
rSP8\_Y
| REAL | | 8 | Support point 8 - Y value |
|
rSP9\_X
| REAL | | 9 | Support point 9 - X value |
|
rSP9\_Y
| REAL | | 9 | Support point 9 - Y value |
|
rSP10\_X
| REAL | | 10 | Support point 10 - X value |
|
rSP10\_Y
| REAL | | 10 | Support point 10 - Y value |
### Function description
\
The array at the output arData\_Real\_Real is filled with the entered data of the 10 support points, if
1. there is no active error in the entry of the support points (xError = FALSE) AND
2. a value change has occurred in the entered data
\
The output **xValidData** is active (= TRUE) if the data in the output array are valid. The data in the output array may differ from the entered data if the entered data contain an error.\
\
When specifying the X-values, the following boundary conditions apply:\
\
1\) The X-values must be consecutive either increasing or decreasing\
2\) Two consecutive X-values must not be equal\
\
The output **xError** is active (= TRUE) if at least one of these two conditions is not fulfilled.\
It is not active (= FALSE) if both conditions are fulfilled.
### Representation of an example characteristic curve
### CODESYS
InOut:
| Scope | Name | Type | Initial |
| ----------- | ------------------ | ------------------------------------- | ------- |
| Output | `arData_Real_Real` | ARRAY \[1..10] OF stCurve\_Real\_Real | |
| Output | `xValidData` | `BOOL` | FALSE |
| Output | `xError` | `BOOL` | FALSE |
| Input Const | `rSP10_Y` | `REAL` | 0.0 |
| Input Const | `rSP10_X` | `REAL` | 26.0 |
| Input Const | `rSP9_Y` | `REAL` | 100.0 |
| Input Const | `rSP9_X` | `REAL` | 25.0 |
| Input Const | `rSP8_Y` | `REAL` | 100.0 |
| Input Const | `rSP8_X` | `REAL` | 15.0 |
| Input Const | `rSP7_Y` | `REAL` | 75.0 |
| Input Const | `rSP7_X` | `REAL` | 14.0 |
| Input Const | `rSP6_Y` | `REAL` | 75.0 |
| Input Const | `rSP6_X` | `REAL` | 8.0 |
| Input Const | `rSP5_Y` | `REAL` | 50.0 |
| Input Const | `rSP5_X` | `REAL` | 7.0 |
| Input Const | `rSP4_Y` | `REAL` | 50.0 |
| Input Const | `rSP4_X` | `REAL` | -4.0 |
| Input Const | `rSP3_Y` | `REAL` | 25.0 |
| Input Const | `rSP3_X` | `REAL` | -5.0 |
| Input Const | `rSP2_Y` | `REAL` | 25.0 |
| Input Const | `rSP2_X` | `REAL` | -13.0 |
| Input Const | `rSP1_Y` | `REAL` | 0.0 |
| Input Const | `rSP1_X` | `REAL` | -14.0 |
---
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