96 Chapter 3
Measurement Synchronization with LXI-B
Setting Up and Executing a List Sweep Measurement
frequency in its list. The MXA’s “WaitingForTrigger” instrument event
transitions high, and a “LAN1” output event goes onto the LAN with a
rising edge. The MXA waits for its next trigger.
The two instruments continue to step through their lists until the MXA
has completed measurements at every frequency in its list. Once the
final measurement has completed, the “OperationComplete”
instrument event transitions high, causing the “OperationComplete”
output event to go out onto the LAN with a rising edge. This event may
be caught by a controller to signal the end of the measurement. The
controller may then retrieve the list sweep measurement results from
the MXA.
Synchronizing a List Sweep Measurement Between
an MXA and an MXG
Synchronizing Using Peer to Peer messages
The following procedure allows you to Synchronize a List Sweep
measurement between an MXA and an MXG using Peer to Peer
messages
Task Action Notes
1. Disable LXI Output
LAN Events on the
MXG
:LXI:EVENt:OUTPut:LAN:DISable:ALL This command is sent
to the MXG
2. Reset the MXG *RST This command is sent
to the MXG
3. Choose the MXG’s
PTP domain
:LXI:CLOCk:PTP:DOMain 0 This command is sent
to the MXG.
The parameter may be
any integer 0-255.
4. Choose the MXG’s
LXI domain
:LXI:EVENt:DOMain 0 This command is sent
to the MXG.
The parameter may be
any integer 0-255.
5. Preset the MXG’s list
sweep
:LIST:TYPE:LIST:INIT:PRES This command is sent
to the MXG
6. Tell the MXG to
expect a list of
frequencies
:FREQ:MODE LIST This command is sent
to the MXG.
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