Siemens SIMATIC NET S7-300 Operating Instructions

The SIMATIC NET products described in this document meet the requirements of the following
directives:
• UK-Regulation
SI 2016/1107 Equipment and Protective Systems Intended for use in Potentially Explosive
Atmospheres Regulations 2016, and related amendments
• EMC Regulation
SI 2016/1091 Electromagnetic Compatibility Regulations 2016, and related amendments
• RoHS Regulation
SI 2012/3032 Restriction of the Use of Certain Hazardous Substances in Electrical and
Electronic Equipment Regulations 2012, and related amendments
ATEX, IECEx, UKEX and CCC Ex certi󹪝cation
WARNING
Risk of explosion in hazardous areas
When using SIMATIC NET products in hazardous area zone 2, make absolutely sure that the
associated conditions in the following document are adhered to:
"SIMATIC NET Product Information Use of subassemblies/modules in a Zone 2 Hazardous Area".
You will 󹪝nd this document
• on the data medium that ships with some devices.
• on the Internet pages under Siemens Industry Online Support (https://
support.industry.siemens.com/cs/ww/en/view/78381013).
Enter the document identi󹪝cation number "C234" as the search term.
The markings of the electrical devices are:
II 3 G Ex ec IIC T4 Gc
DEKRA 18ATEX0025 X
DEKRA 21UKEX0001 X
IECEx DEK 18.0017X
Importer UK:
Siemens plc,
Manchester
M20 2UR
(Ex na IIC T4 Gc, not on the nameplate)
2020322310002626
2020322310002915
2020322310002987
The products meet the requirements of the following standards:
• EN/IEC 60079-7, GB 3836.8
• EN IEC/IEC 60079-0, GB 3836.1
Approvals and markings
6.1 Notes on the CE Mark
Compact Switch Module CSM 377
38 Operating Instructions, 06/2022, A2B00073499-02

Siemens SIMATIC NET S7-300 Specifications

General

Product Type Designation	SIMATIC NET S7-300
Mounting	DIN rail mounting
Protection Class	IP20
CPU Models	Various models available (e.g., CPU 312, CPU 314)
Communication Interfaces	MPI, PROFIBUS DP
Power Supply	24 V DC power supply required. Different power supply modules available.
I/O Modules	Digital input modules, digital output modules, analog input modules, analog output modules
Programming	STEP 7 software
Supply Voltage	24V DC or 120/230V AC (depending on model)
Digital Inputs	Available via digital input modules
Digital Outputs	Available via digital output modules
Analog Inputs	Available via analog input modules
Analog Outputs	Available via analog output modules
Communication Functions	MPI, PROFIBUS DP, Ethernet (depending on model)
Protocols	MPI, PROFIBUS DP, TCP/IP (depending on model)
Operating Temperature	0°C to 60°C
Storage Temperature	70 °C
Memory	Depends on CPU model (e.g., 32 KB to 1.5 MB)