The DOS version of the TRiLOGI software was developed since 1991. It was originally designed as a pure "Ladder Logic" editor, compiler and simulator program and was used for programming our E10 and H-series PLCs. In 1997 we added the support for the BASIC language which enables it to program the M-series PLCs.

Although all M-series PLCs can be programmed using the Windows Version 5.x or 6.x, the DOS version 4.13 is still used by many users who prefer the precise control afforded by using the keyboard. In addition, the DOS version runs lightning fast on older 286 or 386 PC with only 1 M byte of RAM. Hence if you can find an old notebook computer in your store room you can instantly turn it into a fast PLC programming workstation!

Current Versions There are 3 versions of the DOS software available, one for programming each family of the PLC:
  1. Version 3.3  - For the H-series PLC.
  2. Version 3.3E - For the E10-npn or E10-Relay.
  3. Version 4.13 - For the M-series PLCs.

Note: All three DOS version of TRiLOGI are bundled free-of-charge with the purchase of the Internet TRiLOGI software or WinTRiLOGI software.
Operating System: MS-DOS or PC-DOS or  "MS-DOS prompt" under *Windows 95, 98 or ME. * WILL NOT work properly under Windows 2000, NT or XT
PLC Models Supported* 1. E10-npn, E10-Relay,  E10-npn+ & E10-Relay+ PLCs.
2. All H-series PLCs.
3. T100MD+ PLCs
4. T100MX+ PLCs
Free Education Version  Download http://www.tri-plc.com/trilogi2.htm
Programmer's Reference Download

1) Part One:  Ladder Logic Editor  Reference -  trilogi.pdf  (253K)
3) Part Two:   TBASIC Reference - tbasic.pdf (300K) 

* Note:  DOS version of TRiLOGI software cannot be used to transfer programs to the PLCs if it runs in a DOS prompt under the Windows NT, 2000 or XP. This is because all the NT type operating systems do not allow the DOS program to take control of the serial port. Other than that, the editor and simulator may still run in such environment.