> 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-modbus-library/functionblocks/generic/simplewritevalueint.md).

# SimpleWriteValueInt

## `SimpleWriteValueInt` (FB)

`FUNCTION_BLOCK` SimpleWriteValueInt

### Representation

<figure><img src="/files/1638ecbfefdba657584beb75132f2f2c1a64cbc2" alt=""><figcaption></figcaption></figure>

### Use of type conversion operators (e.g. REAL\_TO\_INT) directly at the input `InputValue`

In this configuration, compiler error messages of type C0032 are generated; a download is not possible.

{% hint style="info" %}
Remedy:&#x20;

Use of an intermediate variable of the explicit type `INT` directly at the output of the type conversion operator. Connection of the intermediate variable at the input `InputValue`.
{% endhint %}

### CODESYS

InOut:

| Scope       | Name              | Type                              | Initial                                         | Comment                                                                                                                                                                                          |
| ----------- | ----------------- | --------------------------------- | ----------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Input       | `xEn`             | `BOOL`                            | TRUE                                            | Enable / disable communication (TRUE = enable)                                                                                                                                                   |
| Input       | `byUnitId`        | `BYTE`                            | 0                                               | Device address                                                                                                                                                                                   |
| Input       | `InputValue`      | `__SYSTEM.AnyType`                |                                                 | <p>Input variable (FC06, FC16) (<code>USINT</code>, <code>UINT</code>, <code>UDINT</code>, <code>ULINT</code>,<br><code>SINT</code>, <code>INT</code>, <code>DINT</code>, <code>LINT</code>)</p> |
| Input       | `xUpdateSetp`     | `BOOL`                            | FALSE                                           | Update of setpoints (on every rising edge)                                                                                                                                                       |
| Input       | `xResError`       | `BOOL`                            | FALSE                                           | <p>Reinitialization of the outputs <code>eErrorCodeCom</code> or<br><code>eErrorCodeDev</code> to the error-free state (on every<br>rising edge)</p>                                             |
| Inout       | `ModbusClient`    | `ModbusClientBase`                |                                                 | Client of the device                                                                                                                                                                             |
| Output      | `eFunctionCodeFb` | WriteFunctionCodesInt             |                                                 | Feedback - Modbus function code for the Modbus telegram                                                                                                                                          |
| Output      | `wRegisterAddrFb` | `WORD`                            |                                                 | <p>Feedback - start address of the register for the Modbus<br>telegram</p>                                                                                                                       |
| Output      | `eTypeInputValue` | SIMPLE\_WRITE\_VALUE\_TYPE\_CODE  | SIMPLE\_WRITE\_VALUE\_TYPE\_CODE.STATE\_INVALID | State of the sign of the value at the input `InputValue`                                                                                                                                         |
| Output      | `xAlarm`          | `BOOL`                            |                                                 | Collective fault (TRUE = fault)                                                                                                                                                                  |
| Output      | `xAlarmCom`       | `BOOL`                            |                                                 | Collective fault - communication (TRUE = fault)                                                                                                                                                  |
| Output      | `eErrorCodeCom`   | ModbusErrorCode                   |                                                 | Error code - communication (0 = no error)                                                                                                                                                        |
| Output      | `eErrorCodeDev`   | SIMPLE\_WRITE\_VALUE\_ERROR\_CODE |                                                 | Error code - device (0 = no error)                                                                                                                                                               |
| Output      | `xBusy`           | `BOOL`                            |                                                 | Communication display (TRUE = communication)                                                                                                                                                     |
| Input Const | `xSwapValue`      | `BOOL`                            | TRUE                                            | <p>Enable / disable swapping the byte positions of a register<br>(16 bit) (only relevant for 32 / 64 bit)</p>                                                                                    |
| Input Const | `xBigEndian`      | `BOOL`                            | TRUE                                            | <p>Position of the most significant 8 bits in a datum (only<br>relevant for 32 / 64 bit)</p>                                                                                                     |
| Input Const | `eFunctionCode`   | WriteFunctionCodesInt             | WriteFunctionCodesInt.FC06\_WriteSingleRegister | <p>FALSE = least significant 8 bits are sent last // TRUE = most significant 8 bits are sent first<br>Modbus function code for the Modbus telegram</p>                                           |
| Input Const | `wRegisterAddr`   | `WORD`                            |                                                 | Start address of the register for the Modbus telegram                                                                                                                                            |
| Input Const | `tTimeUpdateSetp` | `TIME`                            | TIME#0ms                                        | <p>Update interval for the processes influenced by the input<br><code>xUpdateSetp</code> influenced</p>                                                                                          |


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