18-19
Measure Commands
CGRade:ZLEVel
The query returns the current source selection.
Returned Format [:MEASure:CGRade:SOURce] <source><NL>
Example 10 OUTPUT 707;":MEASure:CGRade:SOURce CHANNEL1"
CGRade:ZLEVel
Command :MEASure:CGRade:ZLEvel [<source>]
Measures logic zero level inside the eye window on the eye diagram of the current color grade
display. If the source is not set, the lowest numbered signal display that is on will be the
source of the measurement. <source> is {CHANnel<N> | FUNCtion<N> | CGMemory}.
Mode Eye mode only.
Query :MEASure:CGRade:ZLEVel? [<source>]
The query returns the logic zero level of the color grade display.
Returned Format [:MEASure:CGRade:ZLEVel] <value>[,<result_state>]<NL>
<value> is the logic zero level. If SENDvalid is ON, the <result_state> is returned with the
measurement result. Refer to Table 18-4 on page 18-39 for a list of the result states.
Example 10 OUTPUT 707;”:SYSTEM:HEADER OFF”
20 OUTPUT 707;”:MEASure:CGRade:ZLEVel?”
CLEar
Command :MEASure:CLEar
Clears the measurement results from the screen. It is identical to the :MEASure:SCRatch
command.
Example 10 OUTPUT 707;”:MEASure:CLEAR”
DEFine
Command :MEASure:DEFine {CGRade, DELTatime, EWINdow, RZEWindow, THResholds,TOPBase, TREFerence}
Sets up the definition for measurements. The following paragraphs define each argument.
Changing these values may affect other measure commands. Table 18-2 on page 18-21 identi-
fies the relationships between user-DEFined values and other MEASure commands.
CGRade
:MEASure:DEFine CGRade,{RZ | NRZ}
Defines the eye type of the data pattern: return-to-zero (RZ) or non-return-to-zero (NRZ).
DELTatime
:MEASure:DEFine DELTatime, {<start edge_direction>,<start edge_number>,<start edge_position>,<stop
edge_direction>,<stop edge_number>,<stop edge_position>}
Sets up edge parameters for delta time measurement. <edge_direction> is {RISing | FALLing |
EITHer}. <edge_number> is an integer, from 1 to 20. <edge_position> is {UPPer | MIDDle |
LOWer}.
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