Siemens CPU 313C Hardware And Installation Guide

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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
5-42 A5E00105492-03
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If you want to implement cable lengths above those permitted in a segment, you
must use RS485 repeaters. Information on this topic can be found in the
RS485 repeater product information.
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If bus nodes are connected to a bus segment via stub cables (e.g. PG via a normal
PG cable), then you must consider the maximum possible length of the stub cable.
The following table lists the maximum permitted lengths of stub cables per
segment:
Table 5-26 Stub cable lengths per segment
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9.6 kbps to 93.75
kbps
M 96 32 32
187.5 kbps M 75 32 25
500 kbps M 30 20 10
1.5 Mbps M 10 6 3
3 Mbps to 12 Mbps
1) 1) 1)
1)
At 3 Mbps and higher, use the PG patch cord (Order No. 6ES7 901-4BD00-0XA0) to
connect the PG or PC. You can use multiple PG patch cords of this number in an
installation. Do not use any other type of stub cable.

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