Profinet, system of industrial communication
26 June 2012
The German company Siemens, with Totally Integrated cheese cheese Automation (TIA), offers an integrated cheese cheese range and homogénea of products and systems for the automation in all the sectors, from the entrance of raw materials and the process of production until the exit of products finished, from the level of field and the level of control of production until the connection to the level of steering.
TIA characterises by a homogeneity and only integration in his gender. Thanks to that minimises the interfaces, attains the maximum fluidity between all the levels, from the one of field until the one of management of the company, going through the one of production. Of course, also it reports profits during all the cycle of life of his machine, installation or plant: from the phase of conceptual engineering, going through the one of operation, until the possible modernisation. In effect, the can have successive generations of products and systems fully compatible, avoiding like this unnecessary interfaces, allows to preserve the investments. This homogeneity, only in his gender, specifies already to the hour of the development of the products and systems Siemens. The result is a better interaction of all the components, from the controller, going through the HMI and the accionamientos, until and the system of control of processes.
Complete overview of Industrial Ethernet.
Of this form, reduces the complexity of the solution of automation for his installation. This already can experience, for example, during the phase of engineering in shape of saving of time and costs as well as, during the operation, in shape greater availability of his installation been due to the possibilities of diagnostic homogéneas that offers Totally Integrated cheese cheese Automation.
Because of the advance of Industrial Ethernet in the automation, Profinet has purchased a big importance and presence to what to industrial communications refers .
Profinet, the Industrial standard Ethernet for the automation. Profinet Is the Industrial standard Ethernet leader with more than 3 million nodes in the whole world and increases the success of the companies when accelerating the processes, increase the productivity and achieve a greater availability of the installation. With Profinet, Siemens takes advantage of the standard Ethernet for the automation, that allows an exchange of fast data and sure to all the levels. This offers the opportunity to implement innovative concepts of machines and plants or installations. Thanks to his flexibility and to his open character, offers to the user a maximum of freedom for the tasks of engineering and the configuration of the architecture of the plant. The efficiency of Profinet allows to take advantage of to the maximum the resources of which has the user and increase notably the availability of the installations.
Example of application of IWLAN based in controller for a lot of points of access, e.g., in a terminal of containers.
This industrial standard has expanded with several innovative characteristics that simplify the configuration of the system, for example in applications of critical hygiene, and allow a more stylized topology and versatile in a lot of distinct stages. The function I-Device (Intelligent IO-Device) makes possible a fast and simple communication between controller and controller by means of the direct access to the image of steerings IO with protocol Profinet IO. Thanks to the function Shared Device, two controllers can access to the same Profinet IO-Device (for example, a station ET 200 decentralised or an accionamiento in an application Safety). Since it no longer is necessary install so many devices in the field, reduce the costs of engineering, cableado, consumption of power and installation. With a topology in ring and the protocol Mediates Redundancy Protocol (MRP) can increase the availability of the installation. This can work directly through the ports RJ45 integrated cheese cheese in the equipment Profinet and can combine as it wish with the ‘switches' Industrial corresponding Ethernet, as for example Scalance X-200).
A greater flexibility, efficiency and performance (Profinet)
• Industrial Wireless LAN (IWLAN). It reduces the costs of maintenance, increases the reliability and convinces by a high performance of communication. Profinet Is the only that allows the use of IWLAN with Safety.
• hygiene. The communication of hygiene by means of PROFIsafe protects to the people, the installations and the environingingment with big reliability.
• Flexible topologies. In addition to the linear topology, also admits topologies in star, tree or ring.
• Standard opened. By his open architecture, is the ideal base to create a network of automation homogénea in the machine and the installation to which can connect so much PLC like devices standard Ethernet.
• Tools web. Profinet Is Ethernet to 100% and is compatible with TCP/IP. This allows, between other things, use technologies web, like the access to the server web integrated cheese cheese of the devices of field.
• Possibilities of extension. Can expand the infrastructures of network as it wish , even during the operation.
• A wire for all. It offers a lot of functions in a wire: the data of machine and the standard data of YOU converge. In this way it achieves homogeneity and reduce the works of cableado and learning, with the consequent saving.
• Diagnostic of devices and network. To end to locate quickly the errors can read big quantity of data of diagnostic of the devices. For the maintenance of devices Profinet (local and remote) employ pages web in standard HTML.
• Greater energetic efficiency. PROFIpower desconecta Concrete consumers or units of whole production during the periods of inactividad, of form coordinated and centralised.
• Cableado Simple. Thanks to the system of fast setting FastConnect, allows to design apt networks for the industry in a minimum time and without special knowledges.
• Change fast of device. When substituting a device Profinet, the IO-Controller detects the new device and assigns him automatically a name.
• A lot of robustness. The employment of ‘switches' even in devices of field prevents that the failures arisen in a determinate section of the network arrive to disturb all the network of plant. In the very sensitive areas to the electromagnetic interferences, admits the employment of cables of optical fibre.
• Speed. The fast applications of control of movement need an exchange of data equally fast. The times of brief cycle of Profinet increase the productivity of the machines and installations.
• Precision. The communication is deterministic. With an inferior fluctuation to 1 µs obtains an extremely precise cycle, what guarantees a product of high quality.
• Big functional capacities. A controller Simatic can administer until 256 devices. The number of stations by network is practically boundless.
• High speed of transfer. Thanks to the use of Ethernet, reaches a speed of transfer of data notably greater that the buses of previous field. In this way even it is possible, and very simple, transfer big volumes of data without repercussions in the transfer of data IO.
• Redundancy of means. Can achieve a greater availability of the installation using the redundancy, that can implement so much with help of ‘switches' external as directly through interfaces Profinet integrated cheese cheese.
• Fast start. In the modular installations, the IO-Controller have to detect quickly new machines or sections of the installation. With Fast Startup, the devices can identify in less than 500 m and connect to the IO-Controller.