# Psion RFID HF Read Tag

Reads a Psion HF Tag.

Action available for the following operating systems:

![](/files/8nmky5uY66dHtSih6rzi)

### Parameters

* **Tag Id Type** *\<unquoted string> -* The type of Tag ID's. The only Tag Type allowed is ISO15693.
* **Block** *\<numeric> -* The start block where the read action is taken.
* **Number of Bytes** *\<numeric> -* The number of bytes readed.
* **Tag ID** *\<string> -* The Tag ID to read.
* **Target** *\<string> -* The control or variable to save the result of this action.
* **Coded** *\<unquoted string> -* Defines if the readed data is coded or not.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://doc.sysdevmobile.com/kalipso5/developing/form/actions/actions-description/group-rfid/psion-rfid-hf-read-tag.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.