# EditString

## `EditString` (FB)

FUNCTION\_BLOCK EditString

### Short description

> Input of a character string\
> Typical application: Specification of the name of a heating circuit

### Representation

<figure><img src="/files/82a5eee9a6fc3d436743beacf0d58342005d43c1" alt=""><figcaption></figcaption></figure>

### Interfaces

#### Outputs

| Name   | Data type | Value range | Initial value | Function                    |
| ------ | --------- | ----------- | ------------- | --------------------------- |
| *sOut* | STRING    |             |               | Output value of type STRING |

#### Setpoints / parameters

| Name          | Data type | Value range | Initial value | Function                   |
| ------------- | --------- | ----------- | ------------- | -------------------------- |
| **sSetPoint** | STRING    |             | ‘’            | Input value of type STRING |

### Function description

#### General

This function block is used to pass an input value of type STRING **sSetPoint** and directly transfer it to the output value of type STRING *sOut*.

{% hint style="warning" %}
**Behavior on power failure**

The input value of type STRING **sSetPoint** is stored in a power-failure-safe manner and automatically restored.
{% endhint %}

### Visualization

Matching visualization element from the HVACV Visu Library: **EditString**

#### Representation

<figure><img src="/files/82a7c0cff67c6b9aca221f6a4deb62ce985e4fb2" alt=""><figcaption></figcaption></figure>

#### Interfaces Visu-Element

| Name             | Data type | Type         | Initial value | Function                                                                                              |
| ---------------- | --------- | ------------ | ------------- | ----------------------------------------------------------------------------------------------------- |
| **rString**      | STRING    | VAR\_IN\_OUT |               | String input value e.g. HVAC.EditString.sSetPoint                                                     |
| **sDialogTitle** | STRING    | VAR\_INPUT   |               | Enter the title in string format e.g.: 'Input room temperature' - appears on the numpad during input. |
| **iFieldSizeL**  | INT       | VAR\_INPUT   | 0             | Field enlarges by the number of entered pixels to the left. Needed to display long numbers or units.  |
| **iFieldSizeR**  | INT       | VAR\_INPUT   | 0             | Field enlarges by the number of entered pixels to the right. Needed to display long numbers or units. |

{% hint style="info" %}
Note: VAR\_IN\_OUT interfaces must be assigned, VAR\_INPUT are optional.
{% endhint %}

### CODESYS

InOut:

| Scope       | Name        | Type     | Initial |
| ----------- | ----------- | -------- | ------- |
| Input Const | `sSetPoint` | `STRING` | ‘’      |
| Output      | `sOut`      | `STRING` |         |


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