PrefacePreface
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SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Scope of the documentation package
You can order the documentation for the SM 335 separately from the module.
The order number for the manual appears in the table below:
Documentation Order Number
• SM 335 - High-Speed Analog Input/Output
Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Other references
More information about using and installing SIMATIC S7-300 analog modules can
be found in:
• SIMATIC Programmable Controller, S7-300 Module Data Reference Manual
• SIMATIC S7-300, Hardware and Installation Manual
The installation guidelines described in this document also relate to the SM 335.
Required basic knowledge
This manual assumes general knowledge of automation engineering.
Knowledge of the SIMATIC S7 programmable controller and the STEP 7 Engineer-
ing System is also required.
Approbations
The S7-300 programmable controller has obtained the following approvals:
• Underwriters Laboratories, Inc.: UL 508 registered (Industrial Control Equip-
ment)
• Canadian Standards Association: CSA C22.2 number 142, (Process Con-
trol Equipment)
• Factory Mutual Research: Approval Standard Class Number 3611.
CE Approval
The S7-300 programmable controller meets the requirements and safety-related
requirements of the following EC directives:
• EC Directive 73/23/EEC “Low-Voltage Directive”
• EC Directive 89/336/EEC “EMC Directive”
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