The programmable automation controller from the personal computer, which came to life emerged in the early 1980's. Before the automation of the production time was dependent on an extremely structured, but very capable of programmable logic controllers. This ladder logic based computers were very good at the work they had to do, even though he limited in the activities they could do. The programmable logic controller mathematics could collect data from a proportional-integralbranch circuit, which are used to monitor the processing temperature. Even in this, as this would help add the contacts PLC allowing the calculation of temperature are performed correctly. But this kind of task could be the limited scope of the possibility of this PLC. Since it would be to perform other tasks such as collecting and entering data into a SQL database, much of its capability. The tasks that are not very specific and verytechnical, but does not have the ability to make a wide range of tasks.
In the world of manufacturing automation, there was a need for capacity expansion in a range of jobs. A controller is a device that works like a PC could run, and extend the power and speed of production more productive in a new arena. The personal computer burst into the work environment and eliminates the hassle of manually many tasks had to be there. But the 'PC could not take a step outside the headquarters of the production process, and without the aid of equipment added. The PC was not able to do the tasks of the PLC process control, you need to do some 'memory cards that allow its expansion, this would add to use. The fact that the PC was in its basic configuration, extensibility was one of the most important qualities that have contributed to the action in the field of automation. Just added some new cards to your PCHowever, there are the supporters of automation technology, the PAC has become. Renewed capacity for mathematical processing, a robust design capable of operating in a harsh environment, the processing speed and they get closer to the programmable automation controller and we know and love.
Programmable Logic Controller
The Programmable Automation Controller, which truly meets the needs of manufacturing automation has a processor that works in close synchronization with the software, who commissioned it. The PAC will be abe very different platform like a PC would, but it would be able to work in more than one domain do. These include the arena, only the PLC, the logic of domination used to be occupied. Other domains include the motion, drive and process control. A distinctive feature of this real high-power controller is that it uses a development platform and database for the storage of developmental tasks that can interact with many automation tasks. This unique platform for many different developmentTypes of programs can be controlled in several languages and written to instruct the devices of automation of production. The platform operates in an open architecture that can be mentioned for extensibility. The PAC uses all the standard protocols and data transfer that allows one hand, and communication with the corporate network. Data is effective from a CAP for the ERP and other enterprise systems to the economy,
When buying aProgrammable Automation Controller your cash outlay will be much less than if you took a different type of system. The cost of these devices has dropped dramatically in recent years. There is no doubt that you can not add support for a PLC for the same processing power you'd expect from a PAC, which would cost less to arrive. The ability to configure a PLC to change anything, it would be difficult in some cases, in other cases it would be impossible. But the programmableAutomation controllers capable of tasks, the task can be changed at little cost and effort. The PLC is designed to perform multi-tasking, which is integrated into the basic structure of the CAP. Extensions PAC a language which he ability to automate the most done. For example, some languages, the ability to create an enclosed space in RAM, while a program is running. Can be executed to perform some special memory allocated in this area a Dynamic Link LibraryTask that may be required by automation. Sometimes this DLL in another programming language then the one that used to be written to perform the recall.
The PAC has inherited the ability of the PC, but had to take some other features to make excellent use of automation in manufacturing.
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