Siemens SIMATIC S7-300 Module data Technical Data Manual

Operating and display elements
2.1 Operating and display elements: CPU 31xC
CPU 31xC and CPU 31x, Technical Data
2-2 Manual, 01/2006 Edition, A5E00105475-06
The figures show the following CPU elements
(1) Status and error displays
(2) Slot for the SIMATIC Micro Memory Card (MMC) incl. the ejector
(3) Connections of the integrated I/O.
(4) Power supply connection
(5) 2. Interface X2 (PtP or DP)
(6) 1. Interface X1 (MPI)
(7) Mode selector switch
The figure below illustrates the integrated digital and analog I/Os of the CPU with open front
covers.
581
6723
05(6
6)
%)
'&9
)5&(
581
; ;
2
21 3
1 2 3
6723
Figure 2-1 Integrated I/Os of CPU 31xC (CPU 314C-2 PtP, for example)
The figures show the following integrated I/Os
(1) Analog I/Os
(2) each with 8 digital inputs
(3) each with 8 digital outputs

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)