Legal InformationWarning Notice SystemThis manual contains notices you have to observe in order to ensure your personal safety, as well as to preventdamage to property. The notices referring to your personal safety are highlighted in the manual by a safetyalert symbol, notices referring only to property damage have no safety alert symbol. These notices shown be-low are graded according to the degree of danger.DANGERindicates that death or severe personal injury will result if proper precautions are not taken.WARNINGindicates that death or severe personal injury may result if proper precautions are not taken.CAUTIONindicates that minor personal injury can result if proper precautions are not taken.NOTICEindicates that property damage can result if proper precautions are not taken.If more than one degree of danger is present, the warning notice representing the highest degree of dangerwill be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relat-ing to property damage.Qualified PersonnelThe product/system described in this documentation may be operated only by personnel qualified for thespecific task in accordance with the relevant documentation, in particular its warning notices and safety in-structions. Qualified personnel are those who, based on their training and experience, are capable of identify-ing risks and avoiding potential hazards when working with these products/systems.Proper Use of Siemens ProductsNote the following:WARNINGSiemens products may only be used for the applications described in the catalog and in the relevant technicaldocumentation. If products and components from other manufacturers are used, these must be recommend-ed or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation andmaintenance are required to ensure that the products operate safely and without any problems. The permis-sible ambient conditions must be complied with. The information in the relevant documentation must be ob-served.TrademarksAll names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publica-tion may be trademarks whose use by third parties for their own purposes could violate the rights of the own-er.Disclaimer of LiabilityWe have reviewed the contents of this publication to ensure consistency with the hardware and software de-scribed. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the in-formation in this publication is reviewed regularly and any necessary corrections are included in subsequenteditions.Siemens AGDigital IndustryProcess AutomationPostfach 48 4890026 NÜRNBERGGERMANY© 09/2019 Subject to Change Copyright © Siemens 2019All rights reserved