Siemens S7-300 - Updating the Operating System

0DLQWHQDQFH
S7-300 Automation System, Hardware and Installation: CPU 312IFM - 318-2 DP
A5E00203919-01
10-3
 8SGDWLQJWKH2SHUDWLQJ6\VWHP
,QZKLFKVLWXDWLRQVVKRXOG,XSGDWHWKHRSHUDWLQJV\VWHP"
After (compatible) function expansions or after an enhancement of operating
system performance the operating system should be upgraded to the latest version
(update).
:KHUHGR,JHWWKHODWHVWYHUVLRQRIWKHRSHUDWLQJV\VWHP"
You can obtain the latest operating system versions from your Siemens partner or
from the Internet (Siemens home page; Automation and Drives, Customer
Support).
7LSEDFNXS\RXURSHUDWLQJV\VWHPEHIRUH\RXXSGDWHLW
If you back up your existing operating system to an empty MC before you start the
update, you can reload the "old" operating system in case you encounter any
problems.
8SGDWLQJWKH2SHUDWLQJ6\VWHP
How to update the operating system (OS):
Table 10-2 Updating the operating system with MC/MMC
6WHS $FWLRQUHTXLUHG &385HVSRQVH
1. Using STEP 7 and your
programming device, transfer the
update files to an empty MC.
-
2. Remove the back-
up/rechargeable battery from
relevant CPUs.
-
3. Switch off the CPU power supply
and insert the MC that contains
the OS update.
-
4. POWER ON. • The CPU automatically recognizes the
MC and the OS update, and it starts the
update.
• All LEDs are lit during OS update.
• When the OS update is complete, the
STOP-LED flashes. The CPU is
requesting a memory reset.
5. Switch off the CPU power supply
and remove the MC that contains
the OS update.
-
6. Reinsert the back-
up/rechargeable battery into the
relevant CPUs.
-