The SIMATIC PCS 7 automation systems are extremely rugged, both electrically and mechanically. For extreme ambient conditions, hardened and refined SIPLUS extreme products are another alternative, especially in the case of:

• High humidity
• Condensation
• Chemically, mechanically or biologically active materials

You can find an overview of the complete SIPLUS extreme product range online at:

http://www.siemens.com/siplus

Under "Devices for extreme requirements > Controllers > Advanced Controllers", you will find conversion tools that display the SIPLUS S7-400 articles for the corresponding SIMATIC S7-400 articles.