VNA Master™Programming Manual : VNA Commands : :CALCulate:LIMit Subsystem : Number of Limit Points
 
Number of Limit Points
:CALCulate:LIMit:POINt?
Description
Returns the number of points currently in the selected limit line. Use :CALCulate:LIMit:TYPE to set the currently active limit line.
Syntax:
:CALCulate:LIMit:POINt?
Cmd Parameter
NA (query only)
Query Response
<NR1> <integer>
Related Command
:CALCulate:LIMit:TYPE
Front Panel Access
NA
Add Limit Point
:CALCulate:LIMit:POINt:ADD
Description
Adds a new limit point to the currently active limit line. Use :CALCulate:LIMit:TYPE to set the currently active limit line.
Syntax:
:CALCulate:LIMit:POINt:ADD
Cmd Parameter
NA
Query Response
NA (no query)
Related Command
:CALCulate:LIMit:TYPE
:CALCulate:LIMit:POINt:DELete
Front Panel Access
Shift 6 (Limit), Limit Edit, Add Point
 
Delete Limit Point
:CALCulate:LIMit:POINt:DELete
Description
Deletes the active trace active limit point. After deletion, the point that is immediately to the left of the point that was deleted becomes the active point. Note that deletion is valid only if 2 or more limit points exist. Use :CALCulate:LIMit:TYPE to set the currently active limit line.
Syntax:
:CALCulate:LIMit:POINt:DELete
Cmd Parameter
NA
Query Response
NA (no query)
Example
To delete the currently active limit point
:CALCulate:LIMit:POINt:DELete
Related Command
:CALCulate:LIMit:POINt:ADD
Front Panel Access
Shift 6 (Limit), Limit Edit, Delete Point
Next Point Left
:CALCulate:LIMit:POINt:LEFT
Description
Sets the limit point immediately to the left of the active limit point as the active point. This makes it active for editing or deleting. Use :CALCulate:LIMit:TYPE to set the currently active limit line.
Syntax
:CALCulate:LIMit:POINt:LEFT
Cmd Parameter
NA
Query Response
NA (no query)
Example
To select the point to the left of the active point
:CALCulate:LIMit:POINt:LEFT
Related Command
:CALCulate:LIMit:POINt:RIGHt
Front Panel Access
Shift 6 (Limit), Limit Edit, Next Point Left
 
Next Point Right
:CALCulate:LIMit:POINt:RIGHt
Description
Sets the limit point immediately to the right of the active limit point as the active point. This makes it active for editing or deleting. Use :CALCulate:LIMit:TYPE to set the currently active limit line.
Syntax
:CALCulate:LIMit:POINt:RIGHt
Cmd Parameter
NA
Query Response
NA (no query)
Example
To select the point to the right of the active point:
:CALCulate:LIMit:POINt:RIGHt
Related Command
:CALCulate:LIMit:POINt:LEFT
Front Panel Access
Shift 6 (Limit), Limit Edit, Next Point Right
 
Limit Point X Value
:CALCulate:LIMit:POINt:X
Description
Sets the location of the active limit point on the x‑axis at the specified location. Sending this command changes the Move Limit on the front panel to Point if it is currently set to Limit. The <x‑parameter> must correspond to the current active trace domain type. If no unit is specified with the <x‑parameter>, then the default unit is used. The query version of the command returns the location of the active limit point on the x‑axis followed by the unit. If an error occurs, such as limit not ON, then the query version of the command returns – 400 error codes. Limit line must be ON for the command to be valid. Use :CALCulate:LIMit:TYPE to set the currently active limit line.
Syntax
:CALCulate:LIMit:POINt:X <x‑parameter>
:CALCulate:LIMit:POINt:X?
Cmd Parameter
<NRf> <x‑parameter> (hertz, meters, feet)
Query Response
<NR3> <x‑parameter> (hertz, meters, feet)
Default Units
Hz for Frequency domain,
Meters or Feet for distance domain.
Example
To set the active limit point to 5000 Hertz (active trace in frequency domain):
:CALCulate:LIMit:POINt:X 5000
OR to 500 MHz:
:CALCulate:LIMit:POINt:X 500 MHz
To set the active limit point to 5 Feet (active trace in distance domain with current distance unit in meter):
:CALCulate:LIMit:POINt:X 5 FT
OR to 4 Meter
:CALCulate:LIMit:POINt:X 4 M
:CALCulate:LIMit:POINt:X 4
Related Command
:CALCulate:LIMit:POINt:Y
Front Panel Access
Shift 6 (Limit), Limit Edit, Limit X
 
Limit Point Y Value
:CALCulate:LIMit:POINt:Y
Description
Sets the location of the active limit point on the y‑axis at the specified location. Sending this command changes the Move Limit on the front panel to Point if it is currently set to Limit. The <y‑parameter> is defined in the current y‑axis. If no unit is specified with the <y‑parameter>, then the default unit is used. The query version of the command returns the location of the active limit point on the y‑axis. If an error occurs, such as limit not ON, the query version of the command returns an error code of – 400. Limit line must be ON for the command to be valid. Use :CALCulate:LIMit:TYPE to set the currently active limit line.
Syntax
:CALCulate:LIMit:POINt:Y <y‑parameter>
:CALCulate:LIMit:POINt:Y?
Cmd Parameter
<NRf> <y‑parameter> (depends on display)
Query Response
<NR3> <y‑parameter> (depends on display)
Default Units
Current active trace y‑axis unit
Related Command
:CALCulate:LIMit:POINt:X
Front Panel Access
Shift 6 (Limit), Limit Edit, Amplitude