Chapter 8
Working with Triggers and
Downloading Event Records
8.1
Introduction to Triggers and Events
Triggering in the Model 1133A allows you to capture and store transient conditions of any measured
signal and DSP value for up to 32 separate triggers. Besides recording the exact time and date of a
power-line disturbance, all of the measured data parameters may also be recorded. Thus, you have
a complete record of the conditions surrounding the recorded event. Trigger records are normally
stored in flash memory but may also be transmitted over one of the data connections as they occur.
NOTE:
If you are configuring any triggers for the first time, please read through this entire
section, and make sure that some flash memory has been partitioned for event data. Any time
you change the trigger configuration, the entire flash memory partition devoted to Triggers will be
erased.
1. Make certain that there is an open connection with the 1133A and that you are logged on
with permission to configure. If you are not, see “Basic Configuration Requirements” in
Section 7.1.2.
2. To partition flash, click the Configure Flash Memory button and move the slider to set the
partition size. Click OK to accept or Cancel to decline.
3. From the main menu of PSCSV select Connection
>
Configure
>
Trigger Parameters or click
the Configure Trigger Parameters button.
The Model 1133A subdivides triggers into two main groups: User Triggers and Power Quality
Triggers. Another group of triggers, called “System Triggers,” gives you a method to monitor the
1133A systems themselves. Finally, the 1133A can measure external triggers to any of the four
event input connectors.
8.2
Configuring User (DSP) Triggers
Configuring triggers in the Model 1133A involves setting up the triggering conditions and the type
of data you want recorded when the event occurs. When a triggering event occurs, the selected
electrical parameter meets the triggering conditions and the trigger is considered Active. When
