User`s manual

3-40 Intellio C320Turbo User's Manual
standard might not be able to operate MOXA COM ports. For instance, LapLink for
Windows accesses I/O address directly which will fail with the Intellio C320Turbo
because C320Turbo is accessed via memory instead of I/O port.
MOXA Proprietary Windows DLL Driver
For MOXA Proprietary DLL Driver, MOXA API-232 library functions are supported
for programming, instead of Windows COMM API. The best advantage of using
MOXA Proprietary DLL Driver is that users can have up to 128 ports in a Windows
system which break the restriction of 9 COM ports.
After successful installation, a program group will be created which contains all the
useful programs Moxa provided. Restarting of Windows 3.x system is not necessary
for MOXA Proprietary DLL Driver after installation. It is the dynamic linkage feature
that enable the driver loaded dynamically.
Configuration
The Windows-based configuration program, CONFIG, has the easiest way to
configure up to 128 ports in one system. Max. of four C320Turbo are allowed to be
installed in one system and it makes 128 ports in total. The port number is simply
used to identify the port. Never confuse the port number with COM1 to COM9 which
are totally different things. The starting port number is freely selectable and the last
port number configured will not exceed 128.
For example, if 8 ports are configured and the starting port number is 0, then the
mapping of serial port numbers will be as depicted.
Utilities
The utility, TTY, is included to help users monitor and debug RS-232
communications under Windows 3.x which can manipulate port from number 0 to 127.
It is just a simplest example program which can send and receive data after each port
opened with selected communication parameters. Multiple windows for ports
simultaneously are available for a demonstration of multitasking feature of Windows
3.x. The Windows-provided application, Terminal, can not be used in this case since
the MOXA Proprietary DLL Driver is not used for applications written in Microsoft
Windows COMM API.