Configure Switch Operation (IVI Switching Mode)

Channels Tab

If you specify a column-to-column connection in a matrix, the specific driver typically must use at least a one row channel to create the connection. Specifying a channel as a Configuration channel allows the instrument driver to use the channel to create the path.

If you attempt to connect two channels that are either sources or have their own connections to sources, the path creation operation returns an error. The term source can be from either the instrument or the UUT perspective. As a result, the driver must ensure for each connection that another connection within the switch module does not connect to another source. Defining a channel as a source prevents connection with channels that may cause damage to the channels, devices, or system.

The Channels tab for the Configure Switch operation contains the following channel-specific options:

• Name —The name of a channel. The channel name must evaluate to be a valid virtual channel name as the IVI configuration tool for the logical name being used defines.
• Type —The type of channel for which the state is set.

  Supported Value	Description
  Configuration (0)	The specific driver reserves the channel as a Configuration channel for internal path creation.
  Source (1)	The specific driver reserves the channel as a Source channel.

• State —Specifies whether the Configuration or Source channel state is set or reset. A value of True adds the channel to the configuration or source channel list. A value of False removes the channel from either the Configuration or Source channel list.

The Channels tab also contains a listbox with a list of channels. Use the Add and Remove buttons to add new channels and remove existing ones. You can also specify whether to set or reset the state of the channel as either a Configuration or a Source channel.