User`s manual

INITiate
The INITiate command subsystem places the multimeter in the wait-for-trigger state.
This command is most commonly used with
CONFigure.
Subsystem Syntax INITiate
[:IMMediate]
[:IMMediate]
INITiate[:IMMediate] places the multimeter in the wait-for-trigger state. When a
trigger is received, readings are placed in mainframe/command module memory.
Comments • After the trigger system is initiated using INITiate, use the TRIGger command
subsystem to control the behavior of the trigger system.
• If TRIGger:SOURce is IMMediate, the measurement starts and readings are stored
in mainframe/command module memory as soon as
INITiate is executed.
Readings stored in memory from previous commands are replaced by the new
readings.
• To transfer readings from memory to the output buffer, use the FETCh? command.
• If the multimeter is in the wait-for-trigger state, the ABORt command places the
multimeter in its idle state and terminates any measurement in progress.
• Each multimeter module is allocated enough mainframe memory to store 100
readings. Each reading stored is four bytes long. Since readings are stored in a
four-byte format,
INITiate is faster than sending readings directly to the output buffer
using the
READ? command. If more than 100 readings are requested, and memory is
available, the mainframe allocates additional memory to the multimeter.
• The READ? command executes INITiate implicitly. The MEASure command
executes
READ? implicitly.
• Related Commands: ABORt, CONFigure, FETCh?, READ?
•
*RST Condition: *RST places the multimeter in the idle state.
Example Placing Multimeter in Wait-For-Trigger State
CONF:VOLT:DC (@100:104) !Function: DC voltage; specify channel list.
TRIG:SOUR EXT !Trigger source is external BNC on
multimeter front panel.
INIT !Place multimeter in wait-for-trigger state;
store readings in memory when trigger is
received.
FETC? !Place readings in output buffer.
INIT !You must reinitiate the wait-for-trigger
state after each trigger cycle.
Chapter 5 Command Reference 142