Acquisition Configuration; Introduction - Omega Engineering OMB-NETSCAN 1500 User Manual

Configuration Aspects for Programmers
The command is used to set these two scan intervals. For example, the following command:
I
I00:00:10.0,00:00:00.1
would set the scan interval to once every 10 seconds and set the post-trigger scan interval to once every 0.1
seconds. As mentioned earlier, the scan interval can be set to run as fast as the current configuration will allow.
This is referred to as fast mode. Each of the two scan intervals can be configured as such by specifying
as the argument for the
00:00:00.0
command:
I00:00:10.0,00:00:00.0
will set the normal scan interval to once every 10 seconds and the acquisition scan interval will be set to fast
mode. The two scan intervals may be queried any time via the

Acquisition Configuration

Introduction

To collect and buffer scans, it is necessary to configure an acquisition. An acquisition can consist of the
following components:
Component
Pre-Trigger
Post-Trigger
Post-Stop
* However, if the Post-Trigger is set to 0, the Trigger scan is collected (1 scan) but no
Post-Stop scans are collected.
These components constitute a single Trigger Block in the internal memory. Every Trigger Block has one and
only one Trigger point. This figure describes a Trigger Block.
C-10
command for the desired timebase interval. For example, the following
I
Scans & Scan Intervals
Description
Scans taken before the Trigger is satisfied
Scans taken between the Trigger and the Stop event
Scans taken after the Stop event
Scans Composing a Single Acquisition Trigger Block
software command.
I?
Required
No
Yes*
No
Appendix C
NetScan User's Manual