CPU CPU controller controls the work

In the user view, unnecessarily detailed analysis of the internal circuitry of the CPU, but each part is working mechanism should be enough to understand. CPU CPU controller controls the work, cpu modules plc which it reads the instruction, the instruction interpretation and execution of instructions. However, the pace of work is controlled by the oscillation signal. Operator used for digital or logic operations, high-speed plc  working under the command of the controller. Register to participate in operations, and store intermediate result of the operation, it is also working under the command of the controller.

edium and small series products of all sizes

Plc modules to today, cpu modules plc has formed a large, medium and small series products of all sizes. Can be used for all sizes of industrial control applications. input output module plc  In addition to the logic processing functions, most modern PLC has a complete data computing capability, can be used for a variety of digital control. plc cpu module In recent years, large numbers of PLC functional unit that infiltrated into the position PLC control, temperature control, CNC and other industrial control. And Development Plc modules plus enhanced communication capabilities of human-machine interface technology, the use of PLC control system composed of a variety becomes very easy.

From PLC product line perspective

 From PLC product line perspective, Nanda proud extension NA400 and NA200 two existing series.plc cpu NA400 series PLC is mainly used in all kinds of engineering automation, plc ethernet module  especially in the petrochemical industry, coal mining, rail transportation, water conservancy and hydropower, building automation,  plc cpu module environmental protection, municipal and other areas; NA200 series PLC, mainly in the field of automation engineering with NA400 series of product applications, focusing on logic control of packaging machinery, food pharmaceutical machinery, lifting machinery, engineering machinery, textile machinery and other fields.

Common plc IO module as follows

Common plc IO module as follows:
Switch: Press voltage level points with 220VAC, 110VAC, 24VDC, by isolating way points, with relay isolation and transistor isolation.
Analog: divided by signal type, plc modules  plc analog output modules there is a current type (4-20mA, 0-20mA), voltage type (0-10V, 0-5V, -10-10V), etc., according to the accuracy of points, there are 12bit, 14bit, 16bit, etc. .
In addition to the generic plc IO module, controller plc there are special IO modules, such as thermal resistance, thermocouple, pulse and other modules.
Press the I / O module specifications and determine the number of points, I / O modules can be more or less, but its maximum number of CPU capacity can be managed by the basic configuration, namely by the largest floor or rack slot limit.