You can choose either method, but in the case of systems with a large number of in
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puts, “By Input” is an easier display to understand than “By MCA”.
Using MCA Definition Tables
The whole purpose behind building MCA Input Definitions is to let the Lynx know
the number and types of MCAs you’ll be using with your system. You do this by load
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ing one or more MCA Definition Files into the MCA Runtime Configuration Data
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base.
This database is shared by all of the programs which make up the Lynx software pack
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age, and is used by those programs to gain access to the actual MCA hardware in your
system. In this section we’ll take a look at the procedures used for setting up that data
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base.
Viewing the Current Database
To view the current contents of the database, click on the Database menu’s View
command. If you click on a line in the list, you can use the Device and Settings menus
to look at details of that definition. Click on OK to close the View window.
Loading and Unloading Definitions
Before you can use an MCA Definition, you’ll have to load it into the database, so
we’ll start with that process. Note that you can’t edit a loaded database; you’ll first
have to unload it as described in “Unloading the Database” on page 41).
The Load/Unload functions will be disabled while any Acquisition and Analysis appli-
cations are running and have open data sources. This prevents one user from altering
the runtime database while another user is accessing it.
Loading the Database
A new Definition can be loaded into the Database with the Load to command, which
brings up a dialog box which lets you choose the file to be loaded into the database.
Loading Multiple Definitions
Though you will usually use only one definition at a time, there may be times when
you want to load more than one definition. To do this, be sure that the Input name in
each of the Definition Files is unique.
If you try to load an Input Definition which contains a duplicate Input name, you’ll see
an error message telling you that the requested Definition can’t be loaded.
Chapter 3 - System Setup
40 Lynx™ Digital Signal Analyzer
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