What is the relationship between industrial robots, PLC and automation, and to understand the relationship between the three, the conditions need to be clear about what these three are?
1. Industrial robots
Industrial robot is a kind of multi-joint manipulator or multi-degree of freedom manipulator, which is a mechanical device that relies on the control system and its own power to carry out operations, and is mostly used in industrial production. An industrial robot can replace the labor force of multiple people, and work according to the pre-established standard operation process, helping to reduce the related defective product rate and increase unit output.
2、PLC
PLC, also known as programmable logic manipulator, is a highly used digital operation electronic system in modern industry. The PLC contains a variety of human-machine interface units and communication units, which control the production of equipment through digital or analog input and output. Its operating principle can be divided into three stages: input sampling, program fulfillment, output rewriting, and then reciprocating (or cyclicing) of input sampling, fulfillment, and output from scratch.
3. Automation
Automation is a general term for the processing of information such as measurement and operation and process control of machinery and equipment or production process without direct human intervention. The "embedded system", which is now widely used in Germany and international manufacturing, is a special computer system designed for specific use by thoroughly embedding mechanical or electrical components into controlled equipment.
After reading the introduction of the three, especially the blue part, I wonder if you can find a little bit of the relationship between the three? Yes, the most important feature of industrial robots is that they can work "according to pre-set standard operating procedures", while PLC is a "digital operation electronic system" that includes "multiple human-machine interfaces", and automation includes two characteristics: "according to the expected policy" and "dedicated computer system".
If we simply summarize the relationship between industrial robots, PLCs and automation, it is: industrial robots are a device that fulfills commands; The PLC can control the equipment in harmony; Automation, on the other hand, consists of multiple such devices and PLCs.
Therefore, in the process of changing the entire production line, only the PLC program needs to be changed, and the industrial robot can be fine-tuned, and a new round of production can be carried out.
Therefore, learning PLC can deepen the understanding and understanding of industrial robots and the operation status of the entire job site, and PLC is the only way for engineers to flexibly use and control industrial automation. Otherwise, you can only do simple abort work on the basis of what others have set. Without some PLC foundation, even the basic level of protection operation may not be reached.
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