1-40 Getting Started Model 2701 User’s Manual
Exercise 4 — Trigger and return a single reading
Exercise 5 — Trigger and return multiple readings
Trigger controlled measurements — The instrument is typically used in a non-
continuous trigger mode. In this mode, commands are used to trigger one or more
readings. After the specified number of readings are completed, the measurement process
stops.
Exercise 4 in Figure 1-8 provides a command sequence to trigger and return one reading.
Exercise 5 in Figure 1-9 provides a command sequence to trigger and return multiple
readings.
Figure 1-8
Exercise 4 — Trigger and return a single reading
INIT:CONT OFF
TRIG:COUN 1
SAMP:COUN 1
Place 2701 in
non-continuous
trigger state
Set 2701 to perform
one measurement
1. If a MATH function (mX+B, percent, or 1/X) is enabled, the result of the calculation will
be returned (MATH functions are covered in Section 5).
3. FETCh?, CALC:DATA?, and DATA? do not trigger readings. They simply return the last
reading. If you again send one of these commands before triggering a new reading, the
old reading will be returned.
Return Basic Reading
3,4
INITTrigger Reading
READ?
2. If there is no MATH function enabled, FETCh? and CALC:DATA? will return the basic
reading.
Trigger and Return
Reading
1
Trigger Configuration
Trigger and Return
Reading
DATA?
OR
DATA:FRESh?
Return result of MATH
calculation
1, 2, 3
4. DATA:FRESh? can only be used once to return the same reading. Sending it again
without first triggering a new reading will cause error -230 (data corrupt or stale).
FETCh?
OR
CALC:DATA?
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