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Siemens AG 2006
Siemens Aktiengesellschaft
A5E00861679-01
Product Information
07.2006
Device Manu al C7-613 Control System
Device Manu al C7-635 Control System
Device Manu al C7-636 Control System
This product information contains important information about the documentation mentioned
above. It is to be regarded as a separate component. Its specifications and information have a
higher binding nature than those of other manuals, instruction lists and Getting Starteds.
New C7 devices with larger working memory
The working memory of the following C7 devices was extended. The CPUs can now ex-
ecute larger user programs.
Due to these improvements, the order number of the CPUs were changed.
The new C7 devices are:
• contained in STEP7 V5.4 Service Pack 1
• configurable with the older STEP7 versions:
Th e C7 devices with the new order number can be downloaded from the Internet as
a hardware update (0109).
Requirement is STEP7 V5.2, Service Pack1.
• configurable with the corresponding previous C7 d evi ces
• compatible with the previous C7 devices
Non--retentive data blocks
In opposition to the data in the S7--300, CPU 31xC and CPU 31x manual, Technical
data”, chapter 4.1.2, the C 7 devices with frimware V2.0.12 are no longer supported by
retentive data blocks. Non--retentive data blocks and code blocks can be loaded to the
maximum limit of the working memory. Retentive data blocks can be loaded to the
maximum retentive limit of the working memory (see the following table).
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