The 3.0 version of PicoPLC is provided as a free download on our website. The program is included in Development Tools. The most popular version of the tool is 3.0. The actual developer of the free software is Attila Kolinger. PicoPLC.exe is the default file name to indicate the PicoPLC installer.
From the developer:
PICoPLC is a ladder logic editor, simulator and compiler for 8-bit and 32-bit microcontrollers. It can generate native code for Propeller and Microchip PIC16 CPUs from a ladder diagram.
Best of both worlds: PICoPLC brigs the low prices of Microcontrollers and high integration of PLCs. Rapid development with industry proven ladder diagrams and extremely small PCB footprint for space and cost reduction.
You may want to check out more software, such as PBDoc UNICODE Including PB10.5 & PB9.0.2 VM, PBLPeeper or GpProfile, which might be related to PicoPLC.