У вашего броузера проблема в совместимости с HTML5
It is a result demo of how to develop Neural Networks concept in STEP 7 for PLC application.The original discussion in SIOS forum for sample code:
https://support.industry.siemens.com/tf/ww/en/posts/for-loop-in-step-7-how/52900?page=0&pageSize=300