Omega Engineering OMB-NETSCAN, Руководство пользователя

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2-2 ChartView Quick Start and Tutorial NetScan User’s Manual
ChartView uses
Chartvw.cvw
as a default configuration file. This file maintains a location for ChartView
configuration information including:
•
Device Interface Mode
•
Hardware Configuration
•
Channel Settings:
⇒
Channel Enable/Disable (On/Off)
⇒
Type
⇒
Label
⇒
Units
⇒
Alarm Settings (Limits)
⇒
Hysteresis Setting
•
Acquisition Configuration
•
Data Storage Settings
The configuration file ensures that when you restart ChartView, it will be in the same state upon your last
exit. This means that the
Chartvw.cvw
file will be an updated copy of the configuration file you are using
at the time you exit ChartView.
It is not catastrophic if a configuration file is deleted, since it is a simple task to start ChartView when no
configuration file exists. This is described in the tutorial.
Understanding Groups, Charts, & Channels
When starting the program with no configuration file present, a feature called Chart Setup Wizard is
automatically activated to assist you with your setup. To make the best use of Chart Setup Wizard you need
to understand the relationship of Groups, Charts, and Channels.
Note: ChartView and Chart Setup Wizard are detailed in Chapter 4 of this manual.
Group. “Group” refers to a group of charts. ChartView makes use of one chart group. ChartView Plus
allows up to 64 groups, depending on the capabilities of your PC, but only displays data from one chart
group at a time.
Chart. “Chart” refers to display area which reflects real-time channel data values and can be scrolled at
various rates. One chart can display data from up to four channels. In addition, each chart will display real-
time information for a selected channel. You can assign up to 16 charts per group.
Channel. “Channel” refers to a signal channel. You can have up to 4 channels assigned to one chart.
Channels will be displayed in units of °C, °F, °K, °R, mV, V, or in user-defined units, depending on the
configuration and type of signal conditioning card used. NetScan’s signal conditioning card options are
detailed in Chapter 7.