SIMATIC S7-300 is a family of mid- range controllers from Siemens AG from the family of automation systems SIMATIC S7. In the line of controllers of this family in terms of performance, it occupies an intermediate position between the families and the S7-400 . The number of supported inputs and outputs is up to 65536 discrete / 4096 analog channels. The design of the controller is modular, the modules are mounted on a profile rail (rail).
SIMATIC S7-300 is a universal modular programmable controller for solving tasks of automatic control of relatively low and medium degree of complexity. Key features of the controller:
- modular design, installation of modules on a profile rail (rail);
- natural cooling;
- application of local and distributed input-output;
- communication capabilities over MPI , Profibus Industrial Ethernet / PROFInet , AS-i , BACnet , MODBUS TCP networks ;
- support at the operating system level for functions that provide real-time operation;
- support at the level of the operating system for hardware interrupts;
- support at the level of the operating system for processing hardware and software errors;
- Free capacity building with system upgrades;
- The ability to use distributed I / O structures and simple inclusion in various types of industrial networks.
Content
Purpose
Applications for S7-300 programmable controllers include:
- automation of special purpose vehicles;
- automation of textile and packaging machines;
- automation of engineering equipment;
- automation of equipment for the production of control equipment and electrical equipment;
- ATS construction and positioning;
- automated measuring systems and others.
Family Composition
S7-300 have a modular design and allow you to use in its composition:
- A central processing unit (CPU) designed to execute a user program and manage all the controller nodes.
- A power supply module (PS) that allows the controller to be powered from a ~ I network of 120/230 V voltage or from a source - I of 24/48/60/110 V voltage
- Signal Modules (SM) are designed for I / O discrete and analog signals with various electrical and time parameters.
- Communication processors (CP) are designed to connect the controller to PROFIBUS, PROFI-NET, Industrial Ethernet, AS-Interface networks, and organize communication via the Internet or PtP (point to point) connections.
- Functional modules (FM) capable of independently solving the tasks of automatic control, positioning, weighing, high-speed signal processing, etc. FMs are equipped with a set of built-in I / O channels, a built-in MP and are capable of processing information at their local level, which reduces the load on the controller CPU.
- Interface modules (IM), providing the ability to connect to the base unit (rack with CPU) of one or more expansion racks.
Controller Modifications
- SIMATIC S7-300 is a modular programmable controller for solving automation tasks of various levels of complexity.
- SIMATIC S7-300C - ready-made solutions for some typical automation tasks based on the proven S7-300 technology while maintaining the expandability of the S7-300 modules. Support for the functions of high-speed counting , PID control and positioning at the level of the operating system of the central processor.
- SIMATIC S7-300T - with integrated technology features for motion control tasks.
- SIMATIC S7-300F is a programmable controller for building distributed automation systems with increased security .
- SIPLUS S7-300 is a programmable controller for use in harsh conditions: an expanded range of operating temperatures (-25 ... +60 Β° C), higher resistance to vibration and shock loads, work in environments containing aggressive impurities and gases.
Certificates and Approvals
S7-300 programmable controllers meet the requirements of a number of national and international standards, which allows them to be used in all regions of the globe:
- Gosstandart of Russia certificates:
- certificate of conformity with the requirements of GOST-R standards;
- metrological certificate;
- Permission from the Federal Service for Ecological, Technological and Nuclear Supervision to use S7-300 programmable controllers at hazardous production facilities;
- CE mark;
- Approvals:
- UL
- CSA and cULus,
- FM
- ATEX
- C-Tick.
- Certificate IEC 61131-2.
- Maritime certificates:
- American Bureau of Shipping;
- Bureau Veritas;
- Des Norske Veritas;
- Germanischer Lloyd;
- Lloyd Register of Shipping.
Current versions of Russian certificates can be found on the Internet at: https://web.archive.org/web/20151117032959/http://dfpd.siemens.ru/products/automation/simatic/SIMATIC_S7/