The following are free of charge. All are Copyright KK Systems Ltd unless otherwise specified.

KD485-ADE/KD485-PROG Software Utilities diskette (868k)
This is the complete diskette as sent out with the KD485-ADE or KD485-PROG. Includes the Windows 95/98/NT4/2000/XP win32 configuration program (KDCFG.EXE v2.03 updated 3/2008), and DOS configuration utilities.
KD485-ADE/KD485-PROG Win32 Configuration Utility v2.5 (297k)
This is a BETA win32 (Windows NT4/2000/XP/Vista/win7) version of the above KDCFG.EXE configuration program. The main change is that COM ports above COM4 can be selected.
KD485-ADE/KD485-PROG Win16 Configuration Utility v1.3 (334k)
This is a win16 (Windows 3.1/WFWG 3.11) version of the above KDCFG.EXE configuration program. It also runs under NT4.
KD485-PROG MODBUS Library User Manual (133k)
This is the user manual for the KD485-PROG MODBUS RTU SLAVE LIBRARY. It shows how the library is used to create MODBUS-to-custom protocol converters.
KD485-PROG Bisync-Modbus Converter (28k)
This is the source code for a protocol converter, based on the KD485-PROG MODBUS LIBRARY, which can be used to make almost any Eurotherm Bisync product look like a MODBUS RTU SLAVE.
PPC Software Utilities diskette (174k)
This is the complete diskette as sent out with the PPC or
PPC-E Protocol Converter. Includes the KTERM DOS/Windows configuration program, and many example files.
USB232 Windows Drivers (2000k)
These are the latest drivers (from Prolific Technology) for the USB232 USB-RS232 converter, for Windows 98, Windows 2000, Windows XP, IMAC, Linux.
For any updated drivers please visit http://tech.prolific.com.tw
USB485 Windows Drivers (155k)
These are the latest Microsoft certified drivers (from FTDI) for the USB485 USB-RS422/485 converter, for Windows 98, Windows 2000, Windows XP.
Vista certified drivers can be found at the FTDI website (FT232B chip)
USB232 Application Note #1 (100k)
This Application Note contains information on how to control the COM port number which the USB232 driver creates, in cases where a PC used to contain hardware COM ports which are still known to the operating system but which are no longer physically present. Applicable mostly to Windows 98.