# *IDN? (Identification Number)

Common Commands

- *CLS (Clear Status)
- *ESE (Event Status Enable)
- *ESR? (Event Status Register)
- *IDN? (Identification Number)
- *OPC (Operation Complete)
- *OPT? (Option)
- *RST (Reset)
- *SRE (Service Request Enable)
- *STB? (Status Byte)
- *TRG (Trigger)
- *TST? (Hardware Self Tests)
- *WAI (Wait-to-Continue)

## Query Syntax

    *IDN?

## Query Response

    "Keysight Technologies,<oscilloscope>,<serial number>,<software version>"

## Description

Returns an ASCII string that lists the oscilloscope or software model number, the oscilloscope's serial number, and the Infiniium 2026's software version. This is shown in the following example,

    "Keysight Technologies,D9300A,MY12345678,A.26.00.000"

If Infiniium is connected to an oscilloscope, the returned string lists the oscilloscope's model number, serial number, and firmware version. For example,

    "Keysight Technologies,XR804KA,MY12345678,A.26.00.000"

If Infiniium is not connected to an oscilloscope, such as when Infiniium 2026 Offline is used on a PC with simulated connections, the `<oscilloscope>` field will be `D9300A` and the `<serial number>` field will show the computer name of the PC where is installed.

- To combine with other queries to determine Infiniium's configuration.