User`s manual

CP-132 Series Serial Programming Tools
4-5
3. The Diagnostic test utility provides port connection test with two MOXA ports connected via a properly
wired cable.
Please see on-line help as running BIN\SCOPE.EXE for more usage and capability information.
Diagnose
The Diagnose, BIN\DIAGNOSE.EXE, is a utility that can help users to diagnose the hardware condition of
each port of the selected board. See on-line help for more details.
RS-485 Programming
If you intend to do RS-485 communication with Industio CP-132 Series, please follow the RS-485 programming
guide below and also refer to the chapter, “Connection Cable and Cable Wiring”, for more RS-485 operation
details.
The Industio CP-132 Series supports only 2-wire half-duplex RS-485 communication. Data+/- pins are
served for both data transmitting and receiving, depending on the mode selected: either Automatic Data
Direction Control or By RTS.
Automatic Data Direction Control Mode (Recommended)
Automatic Data Direction Control scheme is the best solutions for RS-485 applications. The mode switch for
the port should be set to ON position, to be able to use Automatic Data Direction Control Mode.
Under this mode, no extra code is required to control the data transferring (data transmitting and receiving),
which is automatically managed with the intelligent hardware mechanism. That is, RS-485 programming in
this mode is just as simple as RS-232/RS-422 programming.
By RTS Mode (For back-compatibility)
If the mode switch for the port is set to OFF position, By RTS Mode is used. The port is ready for transmitting
data if RTS signal is asserted and ready for receiving data if RTS signal is not asserted.
RTS scheme is a traditional way and suitable for most system, including Windows NT, Windows 95/98 and DOS,
or even UNIX, that permits RTS control from application programs. This mode should be compatible with most
of the already- made RS-485 applications.