Agilent 33120A User's Guide

Chapter 4 Remote Interface ReferenceStatus Reporting CommandsStatus Reporting CommandsSYSTem:ERRor?Read one error from the error queue. When the front-panel ERRORannunciator turns on, one or more command syntax or hardware errorshave been detected. A record of up to 20 errors can be stored in thefunction generator’s error queue. See chapter 5, “Error Messages,” for acomplete listing of the errors.œ Errors are retrieved in first-in-first-out (FIFO) order. The first errorreturned is the first error that was stored. When you have read allerrors from the queue, the ERROR annunciator turns off. The functiongenerator beeps once each time an error is generated.œ If more than 20 errors have occurred, the last error stored in thequeue (the most recent error) is replaced with -350, “Too many errors”.No additional errors are stored until you remove errors from thequeue. If no errors have occurred when you read the error queue,the function generator responds with +0, “No error”.œ The error queue is cleared when power has been off or after a *CLS(clear status) command has been executed. The *RST (reset)command does not clear the error queue.4*CLSClear the Status Byte summary register and all event registers.*ESE Enable bits in the Standard Event enable register. The selected bits arethen reported to the Status Byte.*ESE?Query the Standard Event enable register. The function generatorreturns a decimal value which corresponds to the binary-weighted sumof all bits set in the register.*ESR?Query the Standard event register. The function generator returns adecimal value which corresponds to the binary-weighted sum of all bitsset in the register.209