Foreword   
 
4  Embedded PC 
Safety Instructions 
Safety Rules 
The responsible staff must ensure that the application or use of the products described satisfy all the requirements for 
safety, including all the relevant laws, regulations, guidelines and standards. 
State at Delivery 
All the components are supplied in particular hardware and software configurations appropriate for the application. 
Modifications to hardware or software configurations other than those described in the documentation are not 
permitted, and nullify the liability of Beckhoff Automation GmbH. 
Personnel Qualification 
This description is only intended for the use of trained specialists in control and automation engineering who are 
familiar with the applicable national standards. 
Description of safety symbols 
The following safety symbols are used in this operating manual. They are intended to alert the reader to the 
associated safety instructions 
 
Danger   
 
This symbol is intended to highlight risks for the life or health of personnel. 
 
Warning   
 
This symbol is intended to highlight risks for equipment, materials or the environment. 
 
Note   
 
This symbol indicates information that contributes to better understanding. 
 
Operator's obligation to exercise diligence 
The operator must ensure that 
· the product is only used for its intended purpose.  
· the product is only operated in sound condition and in working order. 
· the instruction manual is in good condition and complete, and always available for reference at the location where 
the products are used. 
· the product is operated only by suitably qualified and authorised personnel.  
· the personnel is instructed regularly about relevant occupational safety and environmental protection aspects, and is 
familiar with the operating manual and in particular the safety notes contained herein. 
 
National regulations depending on the machine type 
Depending on the type of machine and plant in which the product is used, national regulations governing the 
controllers of such machines will apply, and must be observed by the operator. These regulations cover, amongst