Filter
Top Products
Command Reference 9-95
:INTernal :FORMatPM6680B/81/85
«REAL|PACKed»
Internal Format
This command selects the internal data format of the measurement result from the
SENSe block. The purpose of the command is to increase the measurement
speed.
Parameters:
REAL means that the result is calculated in real-time after each measurement.
PACKed means that the raw measurement data is stored internally and the result is not calcu
-
lated in real-time between measurements. The results are calculated later when they are
sent to the controller. Since the result is not calculated, other blocks cannot use this
data. That means that you cannot have the DISPlay, OUTPut, and CALCulate blocks
switched on when using PACKed format.
The following measuring functions in PM6680B/81 cannot be used with PACKed
format: Phase, Duty Cycle and Volt.
PM6685 cannot used PACKed format with Duty Cycle.
The internal format affects the number measuring results that the measurement re-
sult buffer can hold.
Format Measuring Function
Number of Results in
Buffer
PM6680B/85 PM6681
Real:
All functions
2048 7019
Packed:
Frequency, Period, Ratio Totalize
2166 6143
Pulse Width, Time-Interval, Rise/Fall time
764 4466
Phase, Duty Cycle, Volt
N.A. N.A.
Low resolution Frequency and Period
N.A. 8191
Low Res. Time-Interval and Pulse Width
N.A. 4095
You must consider this when fetching results with the :FETCh:ARRay query.
*RST condition: REAL