Siemens SIMATIC S7-300 Module data Technical Data

Operating and display elements
2.1 Operating and display elements: CPU 31xC
CPU 31xC and CPU 31x, Technical data
2-2 Manual, Edition 08/2004, A5E00105475-05
The figure below illustrates the integrated digital and analog I/Os of the CPU with open front
covers.
SF
BF
DC5V
FRCE
RUN
STOP
RUN
STOP
MRES
X11
X12
2
21 3
1
2
3
Figure 2-1 Integrated I/Os of CPU 31xC (CPU 314C-2 PtP, for example)
The figure shows the following integrated I/Os
(1) Analog I/Os
(2) each with 8 digital inputs
(3) each with 8 digital outputs
Slot for the SIMATIC Micro Memory Card (MMC)
A SIMATIC micro memory card (MMC) is used as memory module. You can use MMCs as
load memory and as portable storage medium.
Note
These CPUs do not have an integrated load memory and thus require an MMC for
operation.

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)