There was a download of PLCTrainer 4.32.01.15 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This program is an intellectual property of Business Industrial Network. The software lies within Education Tools, more precisely Teaching Tools. The following versions: 4.32 and 4.3 are the most frequently downloaded ones by the program users.
From the developer:
The NEW PLCTrainer version 4.32 uses RSLogix ladder logic look and feel and now includes analog instruction, an area that has been overlooked by most PLC training materials. (Note: Demo is not Windows Vista compatible, only paid version.) Order now and receive a second CD free LogixPro, an RSLogix logic simulator. LogixPro, an ideal tool for learning the fundamentals of RSLogix ladder logic programming.
You may want to check out more software, such as TooFast, Sybex CCNA Virtual Lab or CALI Author, which might be related to PLCTrainer.