To test the new or modified ladder program, a single keystroke toggles the student back to the Process Simulation screen and places the PLC in the ‘Run’ mode. Students may add, delete and modify program-rungs, branches and instructions using simple menu selections. The Program Editor is both user friendly and full-featured. With a single keystroke, the user may toggle back and forth between the display of the animated process simulation and the Ladder Rung Program Editor of the emulated PLC. The PSIM software includes a full-featured built-in PLC emulator package that runs concurrently on the same computer with the Industrial applications software (simulations) described above.

A conveyor based filling line, Traffic intersection and Batch mixing simulations present life-like challenges for the student programmer. Thirdly, PSIM contains a number of animated simulations which respond accurately to the inputs, and outputs of the emulated PLC. When placed into the “RUN” mode, the users program is scanned and the appropriate I/O is updated just as would occur in an actual PLC. Secondly, PSIM emulates the scanning sequence of a PLC. First, PSIM contains a PLC Ladder Logic editor that allows users to create and edit PLC programs using Allen Bradley PLC-2 family instructions. PSIM is actually three distinct programs combined into a single package. Educational versions of the TRiLOGI software are free for download by completing form register.Ģ. THis software is useful tool for learning basic PLC programming.

All TRiLOGI versions have built-in Simulator which allows ladder or ladder+BASIC program to be simulated on a PC without purchasing the PLCs. The “TRiLOGI” is a ladder+BASIC programming software for the E, H and M-series of PLCs. There are several PLC simulator softwares available for free download :ġ.

Ladsim Software