FasTrak SoftWorks makes the Windows based PLC software for the Siemens TI family of PLCs. It is a complete online/ofline editor, and supports the entire 500 and 505 series plcs including your 545-1103.
Feel free to contact me for further information.
Jim Rozewicz
FasTrak SoftWorks, Inc.
262.238.8088 x1062 [email protected]
Siemens distribution can sell you one of three software packages. Tisoft, FastTrack software or APT. If you are cunning you could probably talk one of the distributors into giving you a copy of tisoft but you will need a computer with an old operating system as it is a dos package and very easy to use.