Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 211)

10B. Installation & Configuration II. SOFTWARE GUIDES - 10. Driver488/W31
II-196 Personal488 User’s Manual, Rev. 3.0
Configuration Utility
The Driver488/W31 startup configuration is specified in a Windows-style initialization file named
DRVR488W.INI , which resides in the \WINDOWS directory. The first screen of the CONFIG program is
used to enter the configuration settings so the Driver488/W31 software can be correctly modified to
reflect the state of the hardware.
An alternative to using the configuration utility, is to modify the initialization file directly (either using
a text editor or from an application program). For more information on this process, refer to the last
topic “Modification of the Initialization File” found in this Sub-Chapter.
The driver can be reconfigured at any time by running the CONFIG program. If the driver is currently
loaded (the Driver488/W31 icon is present), any changes made will not take affect until the driver is
closed and reloaded.
Interfaces
The minimum requirement for configuring your system is to make certain that your IEEE 488.2
interface board or module is selected under “Device Type.” The default settings in all of the other
fields match those of the interface as shipped from the factory. If you are unsure of a setting, it is
recommended that you leave it as is.
External Devices
Within your IEEE 488.2 application program, devices on the bus are accessed by name. These names
must be created and configured within the
CONFIG program. After configuring your interface
parameters, press to open the External Devices window. All configured devices will be
accessible in your application program via the OpenName command. For more details, refer to the
topic “Configuration of IEEE 488 External Devices” found later in this Sub-Chapter.
Opening the Configuration Utility
In general, all Driver488/W31 configuration utility screens have three main windows: the “name” of
the interfaces or devices on the left, the “configuration” window on the right, and the “instruction”
window at the bottom of the screen. Based on current cursor position, the valid keys for each window
will display in the Instructions box.
To begin the interface configuration, move the cursor in the name window to select an interface
description for modification. (Interfaces can be added or deleted using
and .) Notice
moving the cursor up and down the list of interfaces or devices in the left window changes the
parameters in the configuration window. The configuration fields always correspond with the currently
selected interface and device type.
Once all modifications have been made to the configuration screen, must be pressed to accept
the changes made or can be pressed to exit without making any change. Additional function keys
allow the user to continue onto the configuration of external devices via or to view a graphic
representation of the interface card with the selected settings via .