VT1433B User's Guide

Using the VT1433B

VT1433B Triggering

The following is a short discussion of triggering for the VT1433B.

Triggering is defined as the transition from the armed state to the triggered state. This transition is caused by a low going edge on a TTL trigger line. The function hpe1432_getTtltrgLines selects which of the eight TTL trigger lines is to be used.

The low-going transition of the TTL trig line can be caused by any of the following items:

trigger type

enabling function

the AUTO TRIGGER circuitry

hpe1432_setAutoTrigger

the hpe1432_triggerMeasure function

hpe1432_triggerMeasure

a source trigger

hpe1432_setTriggerChannel

a tach trigger

hpe1432_setTriggerChannel

an external trigger

hpe1432_setTriggerExt

an input level or bound trigger event

hpe1432_setTriggerChannel

and hpe1432_setTriggerMode

 

Each of these trigger sources can be enabled or disabled independently, so quite complex trigger setups are possible. In all cases, however, the first trigger event kicks off the measurement and the following trigger events become superfluous.

Note that for hpe1432_setAutoTrigger the setting HPE1432_MANUAL_TRIGGER really means “don’t auto trigger” not “expect a manual trigger”.

For single-VT1433B systems, the TTL trigger signal is not connected to the VXI backplane. For multiple VT1433B systems, the hpe1432_initMeasure function connects the VT1433B trigger lines to the VXI backplane and at that point, the selection of which TTL trigger lines through hpe1432_getTtltrgLines is relevant. Multiple mainframe systems will need to account for the unidirectional nature of the inter-mainframe MXI extenders which will prevent all but the “upstream” mainframe from triggering the system.

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VXI manual VT1433B Triggering, Trigger type Enabling function
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VT1433B specifications

The VXI VT1433B is a versatile and sophisticated instrument designed for testing and measurement applications, particularly in the realm of telecommunications and electronics. Designed with the needs of engineers in mind, it brings a comprehensive set of features and technologies that enable accurate and efficient performance.

One of the standout features of the VT1433B is its ability to function as a high-performance data acquisition system. With up to 32 input channels, users can capture a wide range of signals simultaneously. This capability is particularly beneficial for applications requiring the monitoring of multiple parameters or systems concurrently, such as in complex electronic testing scenarios.

The VT1433B utilizes advanced technology for signal processing and analysis. Equipped with high-resolution analog-to-digital converters, the unit ensures precise measurement of various signal types, including voltage, current, and frequency. This precision is critical for engineers who rely on accurate data to make informed decisions during the design and testing phases.

In addition to its measurement capabilities, the VT1433B also supports multiple communication protocols, including GPIB, USB, and LAN, allowing for easy integration into existing test systems. This flexibility enhances its usability in both laboratory settings and field operations, where different setups may be required.

The instrument also comes with a user-friendly interface, featuring a clear display and intuitive controls that simplify operation. This design consideration allows users, regardless of their experience level, to navigate the system seamlessly and access the features they need without unnecessary delays.

Moreover, the VT1433B incorporates robust software support, including various programming tools and libraries. This aspect allows for easy implementation of automated test sequences and extensive data analysis capabilities, streamlining the workflow significantly.

Another notable characteristic of the VT1433B is its reliability and durability, designed to withstand the rigors of continuous use in demanding environments. It is engineered to operate under a broad range of temperatures and conditions, making it suitable for diverse applications, from laboratory research to field testing.

In summary, the VXI VT1433B stands out as a comprehensive testing solution, characterized by its extensive input channels, high precision measurement capabilities, multi-protocol communication, user-friendly interface, and robust software support. This combination of features and technologies makes it an invaluable tool for engineers and researchers looking to optimize their testing and data acquisition processes in various fields.
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