The VectorStar VNA Reset commands received over the GPIB do not reset GPIB addresses. Below is a list of the Reset commands which are recognized by the VectorStar VNA.
• IEEE488 Commands
• *RST - Instrument reset
• Lightning Commands
• RST - Instrument reset
• RST0 - Instrument reset
• RST1 - Instrument reset
• HP8510 Commands
• FACTPRES - Perform a factory preset
• PRES - Instrument reset
• Native SCPI Commands
• :SYSTem:PRESet - Performs Preset
• :SYSTem:PRESet:ZERo - Performs a Reset Zero
Background
ATE programs use a Reset command to return the VNA to a known state. Most large ATE programs which do multiple operations use a Reset command at the start of each operation. However, allowing a Reset command to alter GPIB addresses could unexpectedly cause loss of communication with the External Controller and/or the External Instruments on the VNA Dedicated Bus. Therefore the reset commands listed above DO NOT alter GPIB addresses.
Returning the GPIB Addresses to Default
If it is necessary to return the GPIB addresses associated with the VectorStar VNA to their normal default values, use the following procedure.
1. Exit the VectorStar VNA application by selecting MENU BAR | File | Exit at the top of the Display. This will return execution to the PC desktop.
2. Start the VectorStar Reset Application by double clicking its Icon (Yellow Starburst) on the Desktop.
3. When the VectorStar Reset Application starts up, click the Reset VectorStar button. This will sequentially reset the VectorStar application and the VectorStar 100K application.
4. When done, exit the application.
5. VectorStar VNA operation can be resumed by double clicking the Blue VectorStar Icon on the Desktop.