Keysight E1420B Universal Counter User Guide 163E1420B SCPI COMMANDS E1420B Command Reference– If the counter is in ARM:HOLD or BUS mode, an attempted FETCh? returnserror -215, "ARM deadlock".ExampleCONF:FREO 1OE6,1 Function is frequency of channel 1.INIT Makes a measurement.FETC?" Place readings in output buffer. As is missing, frequency isassumed.ENTER" statement Enter measurement into controller.FETCh:PERiod? Place period reading in output buffer.Does not make a measurement."ENTER" statement Enter measurement into controller.FETCh:TINTerval? Generates error -230, "Data corrupt orstale".INITiateThe INITiate command is used to control the initiation of the measurement cycle.Syntax:INITiate[1|2|3][:IMMediate]:CONTinuous :CONTinuous?Comments– Channel Number: Select only one channel at a time.– If you attempt to initiate a measurement on a channel not previouslyconfigured for a measurement, the counter returns error -204, "Channelnot configured for measurement"– Performing the Measurement: Mter the measurement is initiated usingINIT, the state of the Arming subsystem controls when the actualmeasurement occurs. For example: if ARM:SOUR.ce is IMMediate (thedefault for ARM:SOUR), the measurement is performed as soon as INITiateis executed. The measurement result is stored in the counter's memory. Ameasurement stored in memory from a previous command is replaced bythe new measurement data. (See the ARM command in this chapter formore information.)
