Tektronix TBS2000 Series User Manual

Event Queue
The Event Queue stores detailed information on up to 20 events. If than 20 events
stack up in the Event Queue, the 20th event is replaced by event code 350,
"Queue Overflow."
Read the Event Queue with the EVENT? query (which returns only the event
number), with the EVMSG? query (which returns the event number and a text
description of the event), or with the ALLEV? query (which returns all the event
numbers with a description of the event). Reading an event removes it from the
queue.
Before reading an event from the Event Queue, you must use the *ESR? query to
read the summary of the event from the SESR. This makes the events
summarized by the *ESR? read available to the EVENT? and EVMSG? queries,
and empties the SESR.
Reading the SESR erases any events that were summarized by previous *ESR?
reads but not read from the Event Queue. Events that follow an *ESR? read are
put in the Event Queue but are not available until *ESR? is used again.
Event Handling Sequence
The following figure shows how to use the status and event handling system. In
the explanation that follows, numbers in parentheses refer to numbers in the
figure.
Status and Events
280 TBS2000 Series Programmer

Tektronix TBS2000 Series Specifications

General

Bandwidth	70 MHz, 100 MHz, 200 MHz
Channels	2 or 4
Time Base Range	5 ns/div to 50 s/div
Probe Interface	TekVPI
Operating Temperature	0 °C to +50 °C
Vertical Resolution	8 bits
Sample Rate	1 GS/s
Memory Depth	20 kpts
Record Length	20 kpts
Display	9-inch WVGA display
Input Impedance	1 MΩ ±1%, 13 pF ±2 pF
Vertical Sensitivity	2 mV/div to 5 V/div
Trigger Types	Edge, Pulse Width, Video
Connectivity	USB, LAN
Math Functions	Addition, Subtraction, Multiplication, Division, FFT

Summary

Getting Started with TBS2000 Series Programmer

Remote Operation Overview

Provides information on remotely controlling the instrument via communication protocols and commands.

Understanding Command Syntax

Command and Query Structure

Explains the formation of set and query commands, including headers, mnemonics, and arguments.

BNF Notation

Details the Backus-Naur Form used for describing command syntax and structure.

Command Entry Rules

Outlines general rules for entering commands, including case sensitivity and whitespace.

Concatenating Commands

Explains how to combine multiple commands and queries using semicolons for sequential execution.

Organizing Commands into Groups

Acquisition Command Group

Manages waveform acquisition modes, settings, and averaging parameters.

Ethernet Command Group

Controls the instrument's Ethernet interface settings and operations.

Horizontal Command Group

Manages horizontal axis settings, time base, and record length.

Measurement Command Group

Configures and retrieves automated measurement results.

Trigger Command Group

Defines and manages instrument trigger conditions and settings.

Understanding Status and Events

Registers Overview

Explains the instrument's status and enable registers for event reporting.

Event Handling Sequence

Details the process of how the status and event handling system manages instrument events.