---
title: "Command IF"
slug: "command-if"
updated: 2024-07-04T11:07:43Z
published: 2024-07-04T11:07:43Z
canonical: "docs-linescan.alliedvision.com/command-if"
---

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

# Command IF

Command IF is used to query hardware information of the XLC4 control unit. The response contains the data which defines the properties of the driver unit.

## Structure

| Command | Notes |
| --- | --- |
| CommandID | IF | IF works in all XLC4 operating modes |
| Parameter | None |  |
| Channel |
| Parameter | Value | Description |
| None |  | If the IF command is used without channel qualifier, the XLC4 returns information about version and release of the assembled electronic board and the serial number of the XLC4 control unit |
| Channel |  | If the IF command is used with a channel qualifier, the XLC4 returns information about the addressed driver unit of the XLC4. The current XLC4 has 4 identical driver units: A, B, C, D |
| “A” | Channel 1 of the XLC4 control unit |
| “B” | Channel 2 of the XLC4 control unit |
| “C” | Channel 3 of the XLC4 control unit |
| “D” | Channel 4 of the XLC4 control unit |
| Response |
| Without parameter | if , space , version , “,” , release , “,” , serial_number_xlc4 |
| With channel parameter | if , space , duInfoList |
| General notes |
|  |  |

## Example

### Without parameter

| Query | Response |
| --- | --- |
| IF | if 1 , 7 , 10345 |

| Number | Sample | Function |
| --- | --- | --- |
| 1 | 1 | Type of circuit board in the XLC4 control unit |
| 2 | 7 | Revision number of circuit board in the XLC4 control unit Range from 3 to 7, 7 is the latest one |
| 3 | 10345 | Serial number |

### With channel parameter

The response refers to the channel.

| Query | Response |
| --- | --- |
| IF A | if 1 , 0 , 1 , 1500 , 2540 , 200 , 3000 , 1 , 55 , 65 , 70 , 90 , 249 |

| Number | Sample | Function |
| --- | --- | --- |
| 1 | 1 | Type of driver |
| 2 | 0 | Revision number of driver |
| 3 | 1 | Number of channels in the driver unit |
| 4 | 1500 | MaxCurrentOfType |
| 5 | 2540 | Reserved |
| 6 | 200 | MinCurrentOfType |
| 7 | 3000 | MaxSensVoltage |
| 8 | 1 | MinSensVoltage |
| 9 | 55 | WarningTempDU |
| 10 | 65 | MaxTempDU |
| 11 | 70 | WarningTempLED |
| 12 | 90 | MaxTempLED |
| 13 | 249 | Reserved |

Parameters 4, 6, 10 and 11 are compared with the values of the connected Corona II module. The intersection values are taken.