Siemens SIMATIC S7-300 Module data Technical Data

Memory concept
4.2 Memory functions
CPU 31xC and CPU 31x, Technical data
4-14 Manual, Edition 08/2004, A5E00105475-05
Restart (warm start)
• All retentive DBs retain their actual value (non-retentive DBs are also supported by CPUs
with Firmware >= V2.1.0. Non-retentive DBs receive their initial values).
• The values of all retentive M, C, T are retained.
• All non-retentive user data are initialized:
– M, C, T, I, O with "0"
• All run levels are initialized.
• The process images are deleted.
Reference
Also refer to CPU memory reset by means mode selector switch in the section
Commissioning in the CPU 31xC and CPU 31x Operating Instructions .

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)