Siemens CPU 312C Hardware And Installation Guide

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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
4-2 A5E00105492-03
A programming device (PG) is used to program the S7-300 PLC. Use a PG cable
to connect the PG and the CPU.
Several S7-300 CPUs can communicate with one another and with other
SIMATIC S7 PLCs via the PROFIBUS cable. You can connect several S7-300s
using a PROFIBUS bus cable.
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There is a whole range of components available for creating and using an S7-300.
The table below shows the major modules and their functions.
Table 4-1 Components of an S7-300:
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Rail
Accessory:
Shielding contact element
This is the rack for an S7-300
Power supply (PS) This converts the line voltage
(120/230 VAC) to 24 VDC
operating voltage and is used to
supply the S7-300 and 24 VDC
load circuits

Siemens CPU 312C Specifications

General

Brand	Siemens
Model	CPU 312C
Category	Processor
Language	English