Agilent Technologies Switch/Measure manual Viewing Readings Stored in Memory

2Features and Functions

•The scan order setting is stored in volatile memory and the ordered mode will be enabled when power is turned off or after a Factory Reset (*RST command).

Remote Interface Operation: ROUTe:SCAN:ORDered {OFFON}

Viewing Readings Stored in Memory

•During a scan, the instrument automatically adds a time stamp to all readings and stores them in memory. You can read the contents of memory at any time, even during a scan. Reading memory is not cleared when you read it.

•You can store at least 500,000 readings in memory and all readings are automatically time stamped. If memory overflows, a status register bit is set and new readings will overwrite the first (oldest) readings stored. The most recent readings are always preserved.

•Each time you start a new scan, the instrument clears all readings (including alarm data) stored in reading memory from the previous scan. Therefore, the contents of memory are always from the most recent scan.

•The instrument clears all readings from memory after a Factory Reset (*RST command), after an Instrument Preset (SYSTem:PRESet command), or when mainframe power is cycled.

•The instrument clears all readings from memory when a new scan is initiated, when any measurement parameters are changed (CONFigure and SENSe commands), and when the triggering configuration is changed (TRIGger commands).

•While a scan is running, the instrument automatically stores the minimum and maximum readings and calculates the average for each channel. You can read these values at any time, even during a scan.

•Each reading is stored with measurement units, time stamp, channel number, and alarm status information. From the remote interface, you can specify which information you want returned with the readings (from the front panel, all of the information is available for viewing). See “Reading Format” on page 56 for more information.

•Readings acquired during a Monitor are not stored in memory (however, all readings from a scan in progress at the same time are stored in memory).

•The INITiate command stores readings in memory. Use the FETCh? command to retrieve stored readings from memory (the readings are not erased when you read them).

58 34980A User’s Guide