> For the complete documentation index, see [llms.txt](https://support.powerio.com/hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.powerio.com/hub/codesys-hvac/en/hvac-library/functionblocks/setpoint/curve_10xy_real_time.md).
# Curve\_10XY\_Real\_Time
## `Curve_10XY_Real_Time` (FB)
FUNCTION\_BLOCK Curve\_10XY\_Real\_Time
### Short description
> Input of 10 value pairs (support points each with an X and Y value)\
> Boundary conditions:
>
> 1. The X values must be consecutive, either increasing or decreasing
> 2. 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\_Time
| stCurve\_Real\_Time | | | Array with the support points (data type X value: REAL, data type Y value: TIME) |
|
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 | | 1.0 | Support point 1 - X value |
|
tSP1\_Y
| TIME | | T#1m | Support point 1 - Y value |
|
rSP2\_X
| REAL | | 2.0 | Support point 2 - X value |
|
tSP2\_Y
| TIME | | T#2m | Support point 2 - Y value |
|
rSP3\_X
| REAL | | 3.0 | Support point 3 - X value |
|
tSP3\_Y
| TIME | | T#3m | Support point 3 - Y value |
|
rSP4\_X
| REAL | | 4.0 | Support point 4 - X value |
|
tSP4\_Y
| TIME | | T#4m | Support point 4 - Y value |
|
rSP5\_X
| REAL | | 5.0 | Support point 5 - X value |
|
tSP5\_Y
| TIME | | T#5m | Support point 5 - Y value |
|
rSP6\_X
| REAL | | 6.0 | Support point 6 - X value |
|
tSP6\_Y
| TIME | | T#6m | Support point 6 - Y value |
|
rSP7\_X
| REAL | | 7.0 | Support point 7 - X value |
|
tSP7\_Y
| TIME | | T#7m | Support point 7 - Y value |
|
rSP8\_X
| REAL | | 8.0 | Support point 8 - X value |
|
tSP8\_Y’\*
| TIME | | T#8m | Support point 8 - Y value |
|
rSP9\_X
| REAL | | 9.0 | Support point 9 - X value |
|
tSP9\_Y
| TIME | | T#9m | Support point 9 - Y value |
|
rSP10\_X
| REAL | | 10.0 | Support point 10 - X value |
|
tSP10\_Y
| TIME | | T#10m | Support point 10 - Y value |
### Function description
\
The array at the output arData\_Real\_Time 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_Time` | ARRAY \[1..10] OF stCurve\_Real\_Time | |
| Output | `xValidData` | `BOOL` | FALSE |
| Output | `xError` | `BOOL` | FALSE |
| Input Const | `tSP10_Y` | `TIME` | TIME#10m0s0ms |
| Input Const | `rSP10_X` | `REAL` | 10.0 |
| Input Const | `tSP9_Y` | `TIME` | TIME#9m0s0ms |
| Input Const | `rSP9_X` | `REAL` | 9.0 |
| Input Const | `tSP8_Y` | `TIME` | TIME#8m0s0ms |
| Input Const | `rSP8_X` | `REAL` | 8.0 |
| Input Const | `tSP7_Y` | `TIME` | TIME#7m0s0ms |
| Input Const | `rSP7_X` | `REAL` | 7.0 |
| Input Const | `tSP6_Y` | `TIME` | TIME#6m0s0ms |
| Input Const | `rSP6_X` | `REAL` | 6.0 |
| Input Const | `tSP5_Y` | `TIME` | TIME#5m0s0ms |
| Input Const | `rSP5_X` | `REAL` | 5.0 |
| Input Const | `tSP4_Y` | `TIME` | TIME#4m0s0ms |
| Input Const | `rSP4_X` | `REAL` | 4.0 |
| Input Const | `tSP3_Y` | `TIME` | TIME#3m0s0ms |
| Input Const | `rSP3_X` | `REAL` | 3.0 |
| Input Const | `tSP2_Y` | `TIME` | TIME#2m0s0ms |
| Input Const | `rSP2_X` | `REAL` | 2.0 |
| Input Const | `tSP1_Y` | `TIME` | TIME#1m0s0ms |
| Input Const | `rSP1_X` | `REAL` | 1.0 |
---
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