Capturing Data with the GPIB Analyzer

The analyzer can capture and display data, including any combination of the following GPIB events: data transfers, command transfers, control line transitions, handshake line transitions, and parallel poll responses. You can participate in handshaking or do a nonintrusive capture.

You might want to capture and display data based on a specific bus event without knowing when the event might occur. In this case, you can specify a trigger condition and capture any number of events before and after the trigger condition occurs. The capture operation proceeds according to the settings configuration.

The analyzer can perform the acceptor handshake while capturing, and it can timestamp captured events. The number of recorded capture events can be configured to be between 10 and 99999999 and is limited by the memory available on your computer.

Note the following capabilities concerning captures:

• You can switch back and forth between Capture and Capture & Trigger during the capture without losing data.
• The GPIB analyzer timer resolution is 50 ns, so the fastest rate of capturing GPIB events possible is one GPIB event every 50 ns.
• Multiple capture displays can be viewed simultaneously.