Siemens CPU 313C Hardware And Installation Guide

&RQILJXULQJ
S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
5-22 A5E00105492-03
1RQLVRODWHGPRGXOHV
When non-isolated modules are installed, the reference potentials of the control
circuit (M
internal
) and analog circuit (M
analog
) are not electrically isolated.
([DPSOH
For operation with an SM 334 AI 4/AO 2 analog I/O module you must connect one
of the grounding terminals M
analog
to the CPU's chassis ground.
The figure below shows a sample configuration of an S7-300 CPU with non-
isolated modules.
L+
N
M
L1
L+
M
PS
S7-300 CPU
µ
P
L1
N
U
internal
M
internal
Data
4AI/2AO
PE
1 mm
2
M
analog
M
external
V
A
++
D
A
A
D
Ground bus
in cabinet
DC 24 V load power supply
Figure 5-10 Configuration with non-isolated modules

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