User`s guide

Working with Scope Objects
2-13
• “Triggering One Scope with Another Scope to Acquire Data” on page 2-13 —
Describes a configuration of one scope to trigger another using the concept of
pre- and posttriggering
• “Acquiring Gap-Free Data Using Two Scopes” on page 2-16 — Describes how
to apply the concept of triggering one scope with another to acquire gap-free
data
Triggering One Scope with Another Scope to Acquire Data
This section describes the concept of triggering one scope with another to
acquire data. The description uses actual scope objects and properties to
describe triggers.
The ability to have one scope trigger another, and to delay retrieving data from
the second after a trigger event on the first, is most useful when data
acquisition for the second scope is triggered after data acquisition for the first
scope is complete. In the following explanation, Scope 2 is triggered by Scope 1.
• Assume two scopes objects are configured as a vector with the command
sc = tg.addscope('host', [1 2]);
• For Scope 1, set the following values:
-
sc(1).ScopeId = 1
- sc(1).NumSamples = N
- sc1.NumPrePostSamples = P