Agilent-technologies E1300B Uživatelský manuál stáhnout pdf (Strana 158)

[SOURce] The System Instrument contains a Pacer which produces TTL level pulses. The

SOURCE command subsystem controls the number and period of these pulses.

The output of the Pacer is available at the rear-panel BNC connector labeled

“Pacer Out”.

Subsystem Syntax [SOURce]

:PULSe

:COUNt < count>

:COUNt? [MIN | MAX]

:PERiod < period>

:PERiod? [MIN | MAX]

:PULSe:COUNt SOURce:PULSe:COUNt < count> sets the number of Pacer pulses that are

generated when the trigger condition is satisfied.

Parameters Parameter

Name

Parameter

Type

Range of

Values

Default

Units

count numeric 1 to 8,388,607| 9.9E37|

INFinity| MIN| MAX

none

Comments • When count is set to INFinity or 9.9E37, pulses are continuous.

• Related Commands: ABORT, INIT, TRIG

• *RST Condition: SOUR:COUN 1

Example Setting the Pacer pulse count.

TRIG:SOUR HOLD trigger source is TRIG

command

SOUR:PULS:COUN 1E3 output 1000 Pacer pulses

SOUR:PULS:PER .1 S pulse period set to .1 second

INIT go to Wait For Trigger state

TRIG trigger the Pacer to output

pulses

:PULSe:COUNt? SOURce:PULSe:COUNt? [MIN | MAX] returns:

• The current count if no parameter is sent.

• The maximum allowable count if MAX is sent.

• The minimum allowable count if MIN is sent.

Example Querying the pulse count.

SOUR:PULS:COUN 1E3 output 1000 Pacer pulses

SOUR:PULS:COUN? query system for pulse count

retrieve value

[SOURce]:PULSe:COUNt

7-30 System Instrument Command Reference

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