> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pads4.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Playlist properties

These properties define the **RS-232 commands** that will be sent by your **RS-232 communication element**. You can enter a **single command** or create a **play list** of commands that will be executed sequentially.

You can **add, edit, reorder, or remove** commands from the play list. The navigation buttons allow you to browse through play list items. The **total duration** displays the combined execution time for all commands.

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## **RS-232 Command Play List Item**

### **Type**

Defines the **origin** or **format** of the RS-232 command.

| **Option**                              | **Description**                                                                                                                                         |
| --------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **RS-232 Command (Text)**               | Static command entered as plain text.                                                                                                                   |
| **RS-232 Command (Hexadecimal)**        | Command entered in **hexadecimal format**.                                                                                                              |
| **RS-232 Command from Content Library** | Reference to a **predefined text file** stored in the **PADS4 content library** (recommended). Items are **automatically synchronized** across all PCs. |
| **RS-232 Command from File**            | Reference to a text file **outside the PADS4 content library**. These files are **not synchronized** automatically, so manual distribution is required. |
| **No RS-232 Command**                   | No command is included. This is used to **pause** between commands.                                                                                     |

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### **Content**

Defines the **command** to be executed.

* If using **manual entry**, type the **text or hexadecimal command** directly.
* If using a **file reference**, browse to **select the file** containing the commands.
* File references **must include the full file path** if stored outside the content library.

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### **Duration**

Specifies how long (in **seconds**) to **wait** before sending the next command or **pausing** playback.

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### **Effect**

Defines the **incoming transition effect** for the play list item and the **duration** (in seconds).

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## **Remarks**

* **Only file references are stored**, not the actual command content. If the referenced **text file is updated**, the latest commands will be used automatically.
* The **play list properties** will be **disabled** if the **element is connected to a data source**. In this case, the **real-time data source** determines which commands are executed.