# :INSTrument:CONNection:STATe?

:INSTrument Connection Commands

- :INSTrument:CONNection:ADDRess
- :INSTrument:CONNection:CMEThod?
- :INSTrument:CONNection:CONNect
- :INSTrument:CONNection:DISConnect
- :INSTrument:CONNection:SELection
- :INSTrument:CONNection:STATe?

## Query Syntax

    :INSTrument:CONNectionN:STATe?

Where N identifies a specific instrument by connection number and must be selected from {1:8}. For example, `:CONNection2`.

## Query Response

    {CONN | NCON}

## Description

Queries a connection to determine if a communication connection has been established with an instrument. Simulation instruments are always automatically connected when assigned. On other instruments, such as an Infiniium UXR/MXR/EXR-Series oscilloscope, you must establish a communication connection after they have been assigned. To assign an instrument to a connection, use the `:INSTrument:CONNection:SELection` command. To establish a connection to any other instrument, use the `:INSTrument:CONNection:CONNect` command.

CONN
  A connection has been established to an instrument in the indicated connection number.
NCON
  A connection has not been established to an instrument in the indicated connection number. This may also indicated that no instrument has been assigned to the connection.

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