User manual

• :INITiate
• :INITiate:CONTinuous ON
With continuous initiation enabled (:INITiate:CONTinuous ON), the instrument will not re-
main in the idle state after all programmed operations are completed. However, you can re-
turn the instrument to the idle state at any time by sending any of these commands:
•*RST
• ABORt
• *RCL
• SYST:PRES
Trigger model operation
Once the instrument is taken out of idle, operation proceeds through the trigger model
down to the device action. In general, the device action includes a measurement and, when
scanning, closes the next channel.
Control Source — As shown in Figure 4-11, a control source is used to hold up operation
until the programmed event occurs. The control source options are explained as follows:
• IMMediate — Event detection is immediately satisfied allowing operation to continue.
• MANual — Event detection is satisfied by pressing the TRIG key. The Model 2000
Multimeter must be in LOCAL mode for it to respond to the TRIG key. Press the LO
-
CAL key or send LOCAL 16 over the bus to remove the instrument from the remote
mode.
• TIMer — Event detection is immediately satisfied on the initial pass through the loop
Each subsequent detection is satisfied when the programmed timer interval (0 to
999999.999) seconds elapses. The timer source is only available during step/scan
operation. The timer resets to its initial state when the instrument goes into the nor
-
mal mode of operation or into the idle state.
• EXTernal — Event detection is satisfied when an input trigger via the TRIGGER LINK
connector is received by the Model 2000 Multimeter.
• BUS — Event detection is satisfied when a bus trigger (GET or *TRG) is received by
the Model 2000 Multimeter.
Delay — A programmable delay is available after the event detection. The delay can be
manually set from 0 to 999999.999 seconds, or Auto Delay can be used. With Auto Delay
enabled, the instrument automatically selects a delay based on the selected function and
range. See the Auto Delay table in Section 3 for delay times.
Auto Delay is typically used for scanning. The nominal delay will be just long enough to
allow each relay to settle before making the measurement.
Device Action — Figure 4-12 provides a detailed look at the device action. If the repeat
filter is enabled, then the instrument samples the specified number of reading conversions
2000-900 (J - Aug 2010) BOOK.fm Page 30 Wednesday, October 12, 2011 12:29 PM