Siemens CPU 313C Hardware And Installation Guide

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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
A5E00105492-03
10-3
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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 Updating the operating system with MC/MMC
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1. Transfer update files to a blank
MMC using STEP 7 and your
programming device.
-
2. De-energize the CPU and insert
an MMC containing the operating
system update.
-
3. POWER ON. • 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.
4. De-energize the CPU and
remove the MMC containing the
operating system update.
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Siemens CPU 313C Specifications

General

MPI Interface	Yes
Number of digital inputs	24
Number of digital outputs	16
Number of analog inputs	4
Number of analog outputs	2
Supply voltage	24 V DC
High-speed counters	Yes
Bit Operations Execution Time	0.1 µs
Word Operations Execution Time	0.2 µs
Power Consumption	5 W
Dimensions (W x H x D)	40 x 125 x 130 mm
Operating Temperature	0 to 60 °C
Communication Interfaces	MPI
Programming Languages	LAD, FBD, STL
Product type designation	CPU 313C
Weight	490 g