You can find information on explosion protection in the corresponding directives and standards.
Using documentation, app and PUD manager
Documentation updates and CFU product information can be found on the internet (https://
support.industry.siemens.com/cs/ww/en/view/109749357).
Information on the app and its download is available on the internet (see section "2D matrix
code (QR code / EAN code) (Page 21)").
When using the PUD Manager to display the online help, you can integrate the appropriate
documentation into your downloaded help files.
Information about the PUD Manager can be found in the corresponding FAQ (https://
support.industry.siemens.com/cs/ww/en/view/109748882).
Conventions
The following terms are used as synonyms in this document:
Term in the manual Synonyms Notes
CFU Compact Field Unit Applies, if not otherwise specified, to all types of SIMATIC CFU.
CFU PA Compact Field Unit PA Applies, if not otherwise specified, to the product SIMATIC CFU PA.
If the section name or a paragraph begins with "CFU PA", the content is
exclusively relevant for the CFU PA.
CFU DIQ Compact Field Unit DIQ Applies, if not otherwise specified, to the product SIMATIC CFU DIQ.
If the section name or a paragraph begins with "CFU DIQ", the content is
exclusively relevant for the CFU DIQ.
Fieldbus PROFIBUS PA Applies, if not otherwise specified, for the PROFIBUS PA as a fieldbus of
the CFU PA.
Fieldbus connection Port or spur line The interface or spur line to a PROFIBUS PA field device on the CFU PA.
SIMATIC CFU with
aluminum housing
Applies, if not otherwise specified, to the CFU bundle products with alu‐
minum housing.
Observe the notes that are marked as follows:
Note
A note contains important information about the product described, about handling the product
or about a specific section of the documentation that requires particular attention.
Recycling and disposal
The described components are ecologically compatible, and thus suitable for recycling. For
environmentally sound recycling and disposal of your old devices please contact a certified
disposal service company for electronic scrap.
Changes compared to the previous version
The following is an overview of the key changes in the documentation compared to the previous
version:
What is a Compact Field Unit?
SIMATIC CFU
14 Commissioning Manual, 08/2019, A5E39252870-AD
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