Viavi 3900 Series, Programming Manual

Page: 153 / 154

Modulation Accuracy and Power Remote Commands
6 - 6
6.4.4 Power Over Time - Span
:PTIME:SPAN
:PTIME:SPAN?
6.4.5 Power Over Time - Trace Enable
:PTIME:TRACe:ENABle
:PTIME:TRACe:ENABle?
6.4.6 Power Over Time - Trace Data Query
:PTIME:TRACe:LIVE?
Description:
Set command sets Span of Power Over Time graph.
Query command returns parameter setting.
Range: 10 to 1800 seconds
Units: seconds
Default Value: 10 seconds
Set/Query Format: NRf | NR1
Example: :PTIME:SPAN 500s
Sets Power Over Time graph Span to 500 seconds.
Query Response:
:PTIME:SPAN?
500
Description:
Set command Enables/Disables Power Over Time trace.
Query command returns parameter setting.
Parameter: OFF | ON | 0 | 1
Default Value: OFF
Set/Query Format: Boolean
Example: :PTIME:TRACe:ENABle ON
Enables Power Over Time trace.
Query Response:
:PTIME:TRACe:ENABle?
1
Trace must be enabled (ON) to return valid data.
Description: Command returns Power Over Time trace data.
Query Data: <statusbyte>,<#pairs>,<x data>,<y data>,<status message>
statusbyte (NR1): 0 = Invalid
1 = Valid
2 = Inaccurate
#pairs (NR1): Number of x,y coordinate pairs to follow
x, y data (NR2): coordinate value
statuts message (ascii):
(when present)
signal not acquired\n
timed out waiting for TraceMutex\n
timed out waiting for data\n
Query Response: :PTIME:TRACe:LIVE?
1,2,0.00,10.45,330.00,10.45
Power Over TIme trace must be enabled to return valid data.
N O T E
N O T E