Keysight Technologies InfiniiVision 3000T X Series, Programmer'S Manual

Page: 587 / 1420

:POD Commands
25
Keysight InfiniiVision 3000T X-Series Oscilloscopes Programmer's Guide 587
:POD<n>:THReshold
(see page 1276 )
Command Syntax
:POD<n>:THReshold <type>[<suffix>]
<n> ::= An integer, 1 or 2, is attached as a suffix to the command and
defines the group of channels that are affected by the command.
<type> ::= {CMOS | ECL | TTL | <user defined value>}
<user defined value> ::= -8.00 to +8.00 in NR3 format
<suffix> ::= {V | mV | uV}
POD1 ::= D0-D7
POD2 ::= D8-D15
TTL ::= 1.4V
CMOS ::= 2.5V
ECL ::= -1.3V
The :POD<n>:THReshold command sets the threshold for the specified group of
channels. The threshold is used for triggering purposes and for displaying the
digital data as high (above the threshold) or low (below the threshold).
Query Syntax
:POD<n>:THReshold?
The :POD<n>:THReshold? query returns the threshold value for the specified group
of channels.
Return Format
<threshold><NL>
<threshold> ::= Floating point number in NR3 format
See Also • "Introduction to :POD<n> Commands" on page 583
• ":DIGital<d>:THReshold" on page 313
• ":TRIGger[:EDGE]:LEVel" on page 1033
Example Code
' THRESHOLD - This command is used to set the voltage threshold for
' the waveforms. There are three preset values (TTL, CMOS, and ECL)
' and you can also set a user-defined threshold value between
' -8.0 volts and +8.0 volts.
'
' In this example, we set channels 0-7 to CMOS, then set channels
' 8-15 to a user-defined 2.0 volts, and then set the external trigger
' to TTL. Of course, you only need to set the thresholds for the
' channels you will be using in your program.
NOTE
This command is only valid for the MSO models.