Agilent Technologies 41A Spécifications télécharger pdf (Page 201)

Trigger Sequence Levels

Sequence levels are the definable stages of the total trigger

specification. When defined, sequence levels control what the

analyzer triggers on, when the analyzer triggers, and where trigger will

be located in the total block of acquired data. In addition, you can

qualify what data is stored when trigger occurs.

By using sequence levels, you create a sequence of instructions for

the analyzer to follow. As the sequence levels are executed, all

subsequent branching and sequence flow is directed by the

statements within the sequence levels. The path taken resembles a

flow chart, and the end result is the desired trigger point.

Individual sequence levels are assigned either a pre-defined trigger

macro, or a User-level trigger macro. The total trigger specification,

(one or more sequence levels) can contain pre-defined macros,

User-level macro, or a combination of both. You finish defining each

level by inserting resource terms, timers, or occurrence counters into

assignment fields within each macro.

In State Acquisition Mode, there are 12 sequence levels available. In

Timing Acquisition Mode there are 10 sequence levels available.

Sequence Level Usage

Generally, you would think using one macro in one sequence level

uses up one of the available sequence levels. This may not always be

the case. Some of the more complex pre-defined macros require

multiple sequence levels. Keep this point in mind if you are near the

limit on remaining sequence levels. The exact number of internal

levels required per macro, and the remaining available levels, is shown

within the macro library list.

The only instance where multiple levels are used with the User-level

macro, is when the "<" duration is assigned.

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Agilent Technologies 41A Spécifications Page 201