Notes on the documentation
EL29048 Version: 3.2.2
Version Comment
1.4.0 • Note regarding cable length and signal routing extended
• Table listing causes for diagnosis messages added
1.3.0 • Block diagram for EL2904 added
1.2.1 • Reference to EN60068-2-29 removed
1.2.0 • ATEX notes added
• Installation position / minimum distances extended
• Notes regarding overvoltage protection added
• Notes regarding cable length and clocked signals extended
• EN954 wiring example removed
• Diagnostics for CoE object 0x800E described
1.1.0 • Minor amendments for EtherCAT
• Copyright / disclaimer modified
• Support / service addresses updated
1.0.0 • First released version
Currentness
Please check whether you are using the current and valid version of this document. The current version can
be downloaded from the Beckhoff homepage at http://www.beckhoff.com/twinsafe. In case of doubt, please
contact Technical Support (see Beckhoff Support and Service [}10]).
Origin of the document
The original documentation is written in German. All other languages are derived from the German original.
Product features
Only the product properties specified in the current operating instructions are valid. Further information given
on the product pages of the Beckhoff homepage, in emails or in other publications is not authoritative.
1.3 Staff qualification
These operating instructions are intended exclusively for trained specialists in control technology and
automation with the relevant knowledge.
The trained specialist personnel must ensure that the applications and use of the described product meet all
safety requirements. This includes all applicable and valid laws, regulations, provisions and standards.
Trained specialists
Trained specialists have extensive technical knowledge from studies, apprenticeships or technical training.
Understanding of control technology and automation is available. Trained specialists can:
• Independently identify, avoid and eliminate sources of hazard.
• Apply relevant standards and directives.
• Implement specifications from accident prevention regulations.
• Evaluate, prepare and set up the workplaces.
• Evaluate, optimize and execute work independently.
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