Bk-precision 5491B - Manual User Manual download pdf (Page 62)

:STATe <b>

Command syntax:

:FREQuency:REFerence:STATe <b> Control reference for FREQ

:PERiod:REFerence:STATe <b> Control reference for PER

Command parameter:

<b> = 1 or ON Enable reference

0 or OFF Disable reference

Query:

:STATe? Query state of reference.

Description:

These commands are used to enable or disable “reference” for the specified function. When

enabled, the displayed reading will include the programmed reference value. When disabled, the

displayed reading will not include the reference value.

:ACQuire

Command syntax:

:FREQuency:REFerence:ACQuire Acquire reference for FREQ

:PERiod:REFerence:ACQuire Acquire reference for PER

Description:

When one of these commands is sent, the measurement input signal is acquired and established as

the reference value. This command is typically used to zero the display. For example, if the

instrument is displaying a 10 Hz offset, sending this command and enabling reference zeroes the

display.

This command is functional only if the instrument is on the specified measurement function.

Sending this command while in any other function causes an error. Also, if the latest reading caused

an overflow condition or a reading has not been triggered, an error occurs when this command is

sent.

6.3.7 TRIGger subsystem

These commands in this subsystem are used to configure and control trigger measurement function and

are summarized in Table 6-8.

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 77 78

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Bk-precision 5491B - Manual User Manual Page 62