Introduction - Keithley 6430 Instruction Manual

Sub-femtoamp remote sourcemeter

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Introduction

Data ﬂow for remote operation is summarized by the block diagram shown in Figure C-1.

Refer to this block diagram for the following discussion.

The SENSE block represents the basic measured readings of voltage, current and resistance.

If Filter is enabled, the readings will be ﬁltered. The SENSE block also measures time for the

When the INITiate command is sent, the programmed number of source-measure operations

are performed and the respective data is temporarily stored in the Sample Buffer. For example,

if 20 source-measure operations were performed, then 20 sets of data will be stored in the Sam-

ple Buffer. Data from this buffer is then routed to other enabled data ﬂow blocks.

Data ﬂow block

Volts, Amps, Ohms,

(Measurements)

Timestamp, Filter

(Data Store)

Min, Max, Sdev

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