Preface
S7-300, CPU 31xC and CPU 31x: Installation
iv Operating Instructions, Edition 08/2004, A5E00105492-05
Note
There you can obtain the descriptions of all current modules.
For new modules, or modules of a more recent version, we reserve the right to include a
Product Information containing latest information.
Approvals
The SIMATIC S7-300 product series has the following approvals:
• Underwriters Laboratories, Inc.: UL 508 (Industrial Control Equipment)
• Canadian Standards Association: CSA C22.2 No. 142, (Process Control Equipment)
• Factory Mutual Research: Approval Standard Class Number 3611
CE label
The SIMATIC S7-300 product series satisfies the requirements and safety specifications of
the following EU Directives:
• EU Directive 73/23/EC "Low-voltage directive"
• EU Directive 89/336/EWE "EMC directive"
C tick mark
The SIMATIC S7-300 product series is compliant with AS/NZS 2064 (Australia).
Standards
The SIMATIC S7-300 product series is compliant with IEC 61131-2.
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