Siemens SIMATIC S7-300 Module data Hardware And Installation Manual

S7-300 Programmable Controller Hardware and Installation
A5E00105492-01
11-1
11Appendix
11
11.1 Installation
11.1.1 General rules and regulations for S7-300 operation
Introduction
In view of the many and versatile S7-300 applications, this chapter can only
describe the basic rules on its electrical configuration. You must observe at least
these basic rules if you want your S7-300 to operate free of trouble.
EMERGENCY-OFF devices
EMERGENCY-OFF devices to IEC 204 (corresponds to VDE 113) must remain
effective in all operating modes of the plant or system.
Startup of the system after specific events
The following table shows you what you have to observe when starting up a plant
again following specific events.
Table 11-1 Startup of the system after specific events
If there is... What must not happen ...
Restart following a voltage dip or power
failure,
No dangerous operating states may occur. If
necessary, force EMERGENCY-OFF.
Startup after releasing the EMERGENCY
OFF device:
An uncontrolled or undefined startup must
be avoided.

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)