# Commands

Custom software can use the sendCommandToDevice method to send direct commands to the devices. This section provides information about commonly used commands.

#### Discovery <a href="#id-7.1_discovery" id="id-7.1_discovery"></a>

To send a Discovery command to device, use:

```
public void sendCommandToDevice(string command)
```

Parameters: Use “C10206C20503840900” as command string for audio readers.

Return Value:

The following device information will be retrieved.

Device SN, internal: Device serial number created by chip manufacturer. Use getDeviceSerial method to retrieve data.

Device SN, MagTek: Device serial number created by MagTek. Use getDeviceSerialMagTek method to retrieve data.

Device Firmware Part Number: Device firmware part number. Use getFirmware method to retrieve data.

Device Model Name: Device model name. Use getDeviceName method to retrieve data. Device TLV Version: Device TLV version. Use getTLVVersion method to retrieve data.

Device Part Number: Device part number. Use getDevicePartNumber method to retrieve data. Capability - MSR: 0 = No MSR, 1 = MSR. Use getCapMSR method to retrieve data.

Capability - TRACKS:

* 0 = Supported tracks: None.
* 1 = Supported tracks: Track1.
* 2 = Supported tracks: Track2.
* 3 = Supported tracks: Track1, Track2.
* 4 = Supported tracks: Track3.
* 5 = Supported tracks: Track1, Track3.
* 6 = Supported tracks: Track2, Track3.
* 7 = Supported tracks: Track1, Track2, Track3.

Use getCapTracks method to retrieve data.

Capability - MagStripe Encryption: 0 = No Encryption, 1 = TripDES DUKPT. Use getCapMagStripeEncryption method to retrieve data.


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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://developer.magtek.com/hardware/card-readers/magnetic-stripe-readers/idynamo-5-gen-iii/documentation/developers-manuals/programmers-manual-.net-pcl/commands.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.