Siemens SIMATIC S7-300 Module data Reference Manual

General Technical Specifications
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
1-21
Maintenance
If repair is necessary, the affected module must be sent to the production location.
Repairs can only be carried there.
Special Conditions
1. The ET 200M distributed I/O device and the SIMATIC S7-300 must be installed
in a cabinet or metal housing. These must comply with the IP 54 degree of
protection as a minimum. The environmental conditions under which the
equipment is installed must be taken into account. There must be a
manufacturer's declaration for zone 2 available for the housing (in accordance
with EN 50021).
2. If a temperature of > 70 °C is reached in the cable or at the cable entry of this
housing under operating conditions, or if a temperature of > 80 °C can be
reached at the junction of the conductors under operating conditions, the
temperature-related properties of the cables must correspond to the
temperatures actually measured.
3. The cable entries used must comply with the required IP degree of protection
and Section 7.2 (in accordance with EN 50021).
4. All devices (including switches, etc.) that are connected to the inputs and
outputs of fail-safe signal modules must be approved for EEx nA or EEx nC
explosion protection.
5. Steps must be taken to ensure that the rated voltage through transients cannot
be exceeded by more than 40 %.
6. Ambient temperature range: 0° C to 60° C
7. A sign containing the following warning must be put up inside the housing in an
easily visible position when the housing is opened:
Warning
The housing can only be opened for a short time (e.g. for visual diagnostics). If
you do this, do not operate any switches, remove or install any modules or
disconnect any electrical cables (plug-in connections).
You can disregard this warning if you know that the atmosphere is not
hazardous (i.e. there is no risk of explosion).
List of Approved Modules
You will find the list of approved modules under the ID 13702947 on the Internet:
http://www4.ad.siemens.de/view/cs/
.

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)