:INTernal :FORMat

PM6680B/81/85

 

«REALPACKed»

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.

 

 

Number of Results in

 

 

Buffer

 

 

 

 

Format

Measuring Function

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

Command Reference 9-95

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Fluke PM6681R, PM6685R manual INTernal FORMat, Internal Format, Number of Results, Buffer, Format Measuring Function