User`s guide

2-4 Installing the PCLTA-20 Adapter
.
!
Only install the PCLTA-20 adapter
after
the software has been installed.
!
1. Close all open programs.
2. Insert the installation diskette into the PC.
3. In Windows NT 4.0 or later, click the Start button on the Windows NT task bar
and select the run command. In Windows NT 3.51 select “Run...” from the file
menu of the Program Manager.
4. When prompted for a program name, enter the following:
a:\SETUP.EXE
If necessary, replace a: with the drive letter which corresponds to the drive
containing the PCLTA-20 installation diskette.
5. When prompted with a list of languages, click on the desired language. A
checkmark will appear to the left of the language to be installed.
6. When prompted for a destination directory, enter the desired installation
directory. By default this directory is
c:\lonworks
, unless previous
L
ON
W
ORKS
products have been installed and registered a different path in the
Windows Registry. The path may be modified using the Browse button; however,
if a directory other than
c:\lonworks
is chosen, the PCLTA-20 images path will
have to be specified to enable use of the PCLTA-20 adapter. This is accomplished
during PCLTA-20 Configuration. See Chapter 3,
Configuring and Testing the
PCLTA-20 Adapter
.
7. There is a limit of six (6) PCLTA-20 adapters in a single PC.
Once the driver is installed and active, existing 16-bit Windows applications can
access the PCLTA-20 adapter using the
ldv_open()
,
ldv_close()
,
ldv_read()
, and
ldv_write()
functions provided by the
PCLTDOS.SYS
file.
8. The installation software for the Windows NT version will issue a prompt to add
a DOS virtual-mode device driver file to the DOS
CONFIG.N
T file to support DOS
applications calling
LON1
. This will allow DOS applications to be used in a
Windows NT DOS shell/window. For more information see Virtual-Mode DOS
Driver later in this chapter. The following line is added to the
CONFIG.NT
file:
DEVICE=%SYSTEMROOT%\SYSTEM32\PCLTDOS.SYS /D1
The argument /D1 names this DOS device as LON1.