Get Information Operation (IVI Switching Mode)

Channel Info Tab

You can retrieve specific information for specified channels using the Channel Info tab, which contains the following three controls for this purpose: Info 1, Info 2, and Info 3.

The Channel Info tab also contains a listbox with a list of channels. Use the Add and Remove buttons to add new channels and remove existing channels form the list.

• Channel 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.

Info 1 Tab

The Info 1 tab of the Channel Info tab for the Get Information operation contains the following channel-specific options:

• Get Bandwidth —A variable or property to which the step assigns the value that indicates the bandwidth of the channel, in hertz. The value is on a per-channel basis and may not take into account the other switches that make up a path to or from this channel.
• Get Characteristics Impedance —A variable or property to which the step assigns the value that indicates the characteristic impedance of the channel, in ohms. The value is on a per-channel basis and may not take into account the other switches that make up a path to or from this channel.
• Get Max AC Voltage —A variable or property to which the step assigns the value that indicates the maximum AC voltage, in volts RMS, the channel can handle. The value is on a per-channel basis and may not take into account the other switches that make up a path for this channel.
• Get Max Carry AC Current —A variable or property to which the step assigns the value that indicates the maximum AC current, in amperes, the channel can carry. The value is on a per-channel basis and may not take into account the other switches that make up a path to or from this channel.
• Get Max Carry DC Current —A variable or property to which the step assigns the value that indicates the maximum DC current, in amperes, the channel can carry. The value is on a per-channel basis and may not take into account the other switches that make up a path to or from this channel.

Info 2 Tab

The Info 2 tab of the Channel Info tab for the Get Information operation contains the following channel-specific options:

• Get Max Carry DC Power —A variable or property to which the step assigns the value that indicates the maximum DC power, in Watts, the channel can handle. The value is on a per-channel basis and may not take into account the other switches that make up a path to or from this channel.
• Get Max DC Voltage —A variable or property to which the step assigns the value that indicates the maximum DC voltage, in volts, the channel can handle. The value is on a per-channel basis and may not take into account the other switches that make up a path to or from this channel.
• Get Max Switching AC Current —A variable or property to which the step assigns the value that indicates the maximum AC current, in amperes, the channel can switch. The value is on a per-channel basis and may not take into account the other switches that make up a path to or from this channel.
• Get Max Switching AC Power —A variable or property to which the step assigns the value that indicates the maximum AC power, in volt-amperes, the channel can switch. The value is on a per-channel basis and may not take into account the other switches that make up a path for this channel.
• Get Max Switching DC Current —A variable or property to which the step assigns the value that indicates the maximum DC current, in amperes, the channel can switch. The value is on a per-channel basis and may not take into account the other switches that make up a path to or from this channel.

Info 3 Tab

The Info 3 tab of the Channel Info tab for the Get Information operation contains the following channel-specific options:

• Get Max Switching DC Power —A variable or property to which the step assigns the value that indicates the maximum DC power, in Watts, the channel can switch. The value is on a per-channel basis and may not take into account the other switches that make up a path to or from this channel.
• Get Settling Time —A variable or property to which the step assigns the value that indicates the maximum total settling time, in seconds, for the channel before the signal going through it is considered stable. The returned value includes both the activation time for the channel as well as any debounce time. The value is on a per-channel basis and may not take into account the other switches make up a path to or from this channel.
• Get Wire Mode —A variable or property to which the step assigns the value that indicates the number of conductors in the current channel. The value is on a per-channel basis and may not take into account the other switches that make up a path to or from this channel. For example, the return value is 2 when the channel has two conductors.
• Is Configuration Channel —A variable or property to which the step assigns a Boolean value that indicates whether the specific driver uses the channel for internal path creation. For example, if you specify a column-to-column connection in a matrix, the specific driver must typically use at least one row channel to make the connection.
• Is Source Channel —A variable or property to which the step assigns the Boolean value that indicates whether the particular channel is a Source channel. 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 with each connection that another connection within the switch module does not connect to another source. Defining a channel as a source prevents other channels from being connected that may cause damage to the channels, devices, or system.