MICROMASTER 420    Operating Instructions 
4  6SE6400-5AA00-0BP0  
 
Further information is available on the Internet under: 
 
http://www.siemens.de/micromaster
 
 
 
Approved Siemens Quality for Software and Training  
is to DIN ISO 9001, Reg. No. 2160-01 
 
The reproduction, transmission or use of this document, 
or its contents is not permitted unless authorized in 
writing. Offenders will be liable for damages. All rights 
including rights created by patent grant or registration of a 
utility model or design are reserved. 
 
© Siemens AG 2001, 2002, 2004. All Rights Reserved. 
 
MICROMASTER® is a registered trademark of Siemens. 
 
 
 
 
 
 
Other functions not described in this document may be 
available. However, this fact shall not constitute an 
obligation to supply such functions with a new control, or 
when servicing. 
We have checked that the contents of this document 
correspond to the hardware and software described. 
There may be discrepancies nevertheless, and no 
guarantee can be given that they are completely identical. 
The information contained in this document is reviewed 
regularly and any necessary changes will be included in 
the next edition. We welcome suggestions for 
improvement.  
Siemens handbooks are printed on chlorine-free paper 
that has been produced from managed sustainable 
forests. No solvents have been used in the printing or 
binding process. 
Document subject to change without prior notice. 
 
Order Number: 6SE6400-5AA00-0BP0 
 
 
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