GFR2B20300

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GFR2B20300 model is a controller widely employed in large industrial production. It integrates multiple functional devices, such as temperature control, pressure control, interval timer control, and logic operation, into a single Mini-DIN connector. Before its development, it is necessary to understand its application field and working principle.

Application Field

GFR2B20300 has been widely used in the production and control processes in many industries, such as petroleum, chemical, metallurgy, printing, textile, plastics, food and beverages, marine, atomic energy, power plants, and various research projects. Due to its versatile design, GFR2B20300 is considered one of the most popular controllers in manufacturing industry.

Working Principle

GFR2B20300 adopts a hierarchical control architecture, which comprises of three layers of controller, controller unit, controller board, and signal unit. The controller board can be divided into two parts—analog module and logic module. The analog module is used to convert the analog signals into digital signals, while the logic module is used to process the digital signals. To summarize, GFR2B20300 is composed of three layers of hardware, and operating software.

The operating software works by executing a sequence of commands, called a rung list, which is stored in the RAM. The rung list is used to control the different elements of the GFR2B20300 controller. First, the instructions are executed to read the analog inputs and compare them with reference values in order to determine the state of the system. Then, the instructions are executed to control the actuators based on the comparison results. Finally, a series of status alarms are generated to notify the operator if any of the conditions are not met.

In addition to the above-mentioned components, GFR2B20300 also includes a number of safety devices, such as temperature and pressure sensors, as well as over-current protection circuits to prevent any potential damages. This controller also incorporates many user-friendly programming functions, including step-by-step timer programs and setpoint adjustment for analog inputs.

To sum up, GFR2B20300 is a reliable and powerful controller, widely utilized in most medium and large-scale industries. Its hierarchical design and powerful programming functions make it a great choice for automation applications.

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