Programmable controller PLC, each part of the definition of meaning

The international electrotechnical commission ( IEC) In November 1982 with a programmable controller draft standard first draft, in January 1985, and published a second draft, issued in February 1987, the third draft. Of programmable controller in the draft is defined as: 'a programmable controller is a kind of digital computing operations electronic systems, specially designed for application in industrial environment. It USES a programmable memory, used in its internal storage and perform logic operation, sequence control, timing, counting and arithmetic operations such as command, and through digital and analog input and output, control various types of machinery or production process. Programmable controller and related peripheral equipment, industrial system be installed by easily with a whole, easy to expand its function on the principle of design. 'Definition highlights the programmable controller is a' digital computing operation of electronic systems, 'it is a kind of computer. 'It is specially designed for application in industrial environment' of industrial computer, is a kind of application to change the control function of industrial control computer, besides can finish all kinds of control functions, and communicate with other computers connected to the function. The industrial computer USES 'user-oriented' directive, so programming is convenient. It can complete the logic operation, sequence control, timing, counting and arithmetic operations, it also has a 'digital and analog input/output control ability, and very easily and got behind the industrial control system integration', 'expansion' easily. Definition also emphasized the programmable controller should be directly applied to the industrial environment, it must have a strong anti-interference ability, wide adaptability and application scope. This is different from general microcomputer control system is an important feature. It should be stressed that, programmable controller and past of sequence controller has a qualitative difference in terms of 'programmable'. PLC controller microprocessor is introduced and a new generation of electronic devices, such as semiconductor storage and regulation of programming instructions, can flexibly, which USES software way to achieve the purpose of 'programmable'. Programmable controller is the most widely used, powerful function, convenient to use the general industrial control device, since start using the successful development, it has become one of the mainstay of the contemporary industrial automation.
Shenzhen Coolmay Technology Co., Ltd. 's products comply fully with all compatible producing regulations.
Shenzhen Coolmay Technology Co., Ltd. will expand our presence in direct selling and lead the reinvention of the channel, offering an entrepreneurial opportunity that delivers superior earnings, recognition, service and support, making it easy and rewarding to be affiliated with Coolmay and elevating the image of our industry.
Now that Shenzhen Coolmay Technology Co., Ltd. has become a leader in the space and have been able to scale appropriately, we are ready to expand to other cities.
plc controller price plc manufacturers quality is more important because some how it affects to our programmable control systems. So grab good quality .