Siemens SINUMERIK 840 Planning Manual page 4

Preliminary Remarks
Reader guidance
This documentation is intended for manufacturers and users who wish to obtain information on
the computer link with SINUMERIK 840/880.
The description provides a general overview of the computer link, focussing on the computer
link with SINUMERIK 840/880.
It is meant as a first introduction for users who are not yet familiar with the computer link with
SINUMERIK 880 as it describes the basics for the message frame traffic. The manual
"SINUMERIK 840/880 Computer Link General Description" is part of a documentation set on
the 840/880 computer link that is organized as follows:
• General documentation
• Configuration documentation
• Installation and service documentation
The term "SINUMERIK 8X0" is used in this description as a short form for
"SINUMERIK 840/880".
Technical information
This documentation applies to software version 1 and higher in the case
of SINUMERIK 840 and 840C to software version 3 and higher in the case
of SINUMERIK 880 GA2 to software version 1.