Updating The Operating System - Siemens CPU 313C Hardware And Installation Manual

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After (compatible) function expansions or after an enhancement of operating
system performance the operating system should be upgraded to the latest version
(update).
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You can obtain the latest operating system versions from your Siemens partner or
from the Internet (Siemens home page; Automation and Drives, Customer
Support).
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If you back up your operating system on a blank MMC before the update, you can
reload the "old" operating system if any problems occur.
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How to update the operating system (OS):
Table 10-2
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1.
2.
3.
4.
S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
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Updating the operating system with MC/MMC
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Transfer update files to a blank
MMC using STEP 7 and your
programming device.
De-energize the CPU and insert
an MMC containing the operating
system update.
POWER ON.
De-energize the CPU and
remove the MMC containing the
operating system update.
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-
•
The CPU detects the MMC with the
operating system update automatically
and starts the operating system update.
•
All LEDs are lit during OS update.
•
After completion of the operating system
update, the STOP LED flashes. The
CPU prompts you for a memory reset.
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10-3