YS1700-000A34 Storing Programs and Data

YS1700-000A34 is the core of PLC, playing the role of nerve center, each set of PLC has at least one CPU, which receives and stores the user program and data according to the function given by the PLC’s system program, collects the status or data sent from the field input device by scanning and stores them in the specified registers, and, at the same time, diagnoses the power supply and the PLC’s internal circuitry’s working status and programming At the same time, it diagnoses the operating status of the power supply and the internal circuitry of the PLC, and syntax errors during programming. After entering into operation, the instructions are read from the user program memory one by one, and then analyzed and then the corresponding control signals are generated according to the tasks specified in the instructions to command the relevant control circuits.

YS1700-000A34 mainly consists of operators, controllers, registers and the data, control and status buses that realize the connection between them, and the CPU unit also includes peripheral chips, bus interfaces and related circuits. Memory is mainly used to store programs and data, is an indispensable component of PLC. CPU speed and memory capacity is an important parameter of PLC, they determine the working speed of PLC, the number of IO and software capacity, etc., and therefore limit the control scale.

In the user’s view, it is not necessary to analyze the internal circuitry of the CPU in detail, but YS1700-000A34 should still have a sufficient understanding of the working mechanism of the various parts of the CPU controller to control the work of the CPU, which reads the instructions, interprets the instructions and executes the instructions. However, the working rhythm is controlled by oscillating signals. Operators are used to perform digital or logical operations and work under the command of the controller. Registers are involved in the operations and store the intermediate results of the operations, which also work under the command of the controller.