VOLTage Subsystem Introduction
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Differences between remote and front panel operation:
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Remote Interface:
Setting the high or low level from the remote interface can change the high level or low
level to achieve the desired setting. In this case either a "Data out of range" or "Settings conflict" error will
occur. If the high level is set below the low level, the instrument will set the low level 1 mV less than the high
level. If the high level is set below the LOW limit or the instrument output specifications, the low level will be
set to the LOW limit or instrument output specification and the high level will be set 1 mV above the low level.
A similar set of rules applies if the low level is set incorrectly.
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Front Panel:
Setting the high or low level from the front panel may clip that level setting in order to achieve
the desired level setting, and a "Data out of range" error will be generated. The high level cannot be set below
the low level from the front panel.
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Setting the high and low levels also sets the waveform amplitude and offset. For example, if you set the high level
to +2 V and the low level to -3 V, the resulting amplitude is 5 Vpp, with a -500 mV offset.
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Limits Due to Output Termination:
If the amplitude is 10 Vpp and you change the output termination setting from
50 Ω to "high impedance" (
), the displayed amplitude doubles to 20 Vpp. Changing from
"high impedance" to 50 Ω halves the displayed amplitude. The output termination setting does not affect the
actual output voltage; it only changes the values displayed and queried from the remote interface. Actual output
voltage depends on the connected load.
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Limits due to VOLTage:LIMit:STATe:
If voltage limits are enabled, the level settings are checked against the spec-
ified limits (
) before a level change is executed. If an output level
change would exceed a LIMIT setting, the level is clipped to the maximum (or minimum) value allowed that will
not exceed the LIMit setting and a "Settings conflict" error will be generated.
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Limits due to Output Coupling:
If two channels are coupled, limitations are checked on both channels before a
change in level is executed. If a change in level would exceed a LIMIT setting or exceed the instrument's output
specifications for either channel, the level is clipped to the maximum (or minimum) value allowed that will not
exceed the LIMit setting and a "Settings conflict" error will be generated.
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To invert the waveform relative to the offset voltage, use
.
[SOURce[1|2]:]VOLTage:LIMit:HIGH {<
voltage
>| MAXimum|MINimum}
[SOURce[1|2]:]VOLTage:LIMit:HIGH? {MAXimum|MINimum}
[SOURce[1|2]:]VOLTage:LIMit:LOW {<
voltage
>|MAXimum|MINimum}
[SOURce[1|2]:]VOLTage:LIMit:LOW? {MAXimum|MINimum}?
Sets the high and low limits for output voltage.
Parameter
Typical Return
±5 VDC into 50 Ω, as long as HIGH is at least 1 mV greater than LOW. Defaults:
HIGH +50 mV, LOW -50 mV.
+5.000000000
Set channel 1 output high limit to 5 V:
VOLT:LIMIT:HIGH 5.0
VOLT:LIMIT:STATE ON
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For voltage limits to be in effect,
must be ON. If this is the case, and the high limit is set
below the high value of the signal or the low limit is set above the low value of the signal, the relevant limit will be
clipped to the high or low value of the signal. The instrument will generate either a "Data out of range" or "Settings
Agilent 33500 Series Operating and Service Guide
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Содержание Agilent 33500 Series
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Страница 68: ...Output Configuration OUTPUT SYNC SOURCE CH1 CH2 Agilent 33500 Series Operating and Service Guide 67 ...
Страница 410: ...Block Diagram Block Diagram Agilent 33500 Series Operating and Service Guide 409 ...
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