Siemens CPU 313C Hardware And Installation Guide

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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
7-4 A5E00105492-03
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The rail is fixed to the mounting surface.
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1. Connect the protective conductor to the rail,
using the M6 protective conductor bolt.
Minimum cross-section of the protective conductor: 10 mm
2
.
The figure below shows how the protective conductor must be bonded to the rail.
Figure 7-1 connecting the protective conductor to the rail
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Always ensure a low-impedance connection of the protective conductor. You can
achieve this by bonding a cable with low impedance and as short as possible to a
large contact surface.
For example, if the S7-300 is mounted on a hinged frame you must use a flexible
ground strap.
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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