Different analysis plc cpu control and microprocessor controlled

 PLC is actually a set of ready microcontroller ( MCU wide range of oh ) system .

PLC ladder you can be understood as a compilation of calculators with the same language is a 

programming language , but a different range ! But common practice by the PLC ladder software to 

convert your C or assembly language ( used by the PLC the CPU determines ) , then use the assembler 

or  Nanda Plc controller manufacturers C compiler system compiled into machine code ! PLC is running 

just a few yards of it . ladder only allows users to more easily use it.

 Similarly the MCS-51 course also be used for making PLC , just eight CPU in some advanced 

applications such as: a large number of operations ( including floating point ) , embedded systems

 ( our equipment is slow, but the main logic control , but points many Oh , 128 I / O too ! ! ) , 

but also use ladder programming , we compile our ladder into KEIL C51 reuse of C51. you do not notice

 the choice of different models of the PLC the CPU you ! ! course, you can direct the development of 

single-chip control systems, but very demanding for the developer (not the general level capable of ) , 

long development cycles, high costs ( for some large decency you need to do a little experiment ,

 printing board requires a substantial amount of money , you can say you use  

Nanda china industrial automation plc  the simulator , using experimental board to develop, but 

I want to tell you , do you just verify the feasibility of the hardware and software , does not mean you

 can use in industry control systems, industrial control systems because the requirements are very high 

anti-interference , stable first , rather than the performance of the first , so you must constantly test the 

circuit board design , improvement ) when you solve these problems, you will find that you have to do 

with a PLC , of course, easy to use if you need someone to be able to use the software you'll need a set , 

so you may not need to tell others about your circuit ( you can not tell anyone ) .

Which calculation plc cpu modules ten modules

CPU has the basic functions of the following four areas:

1 This refers to the sequence control instruction execution order control program instructions.

 There is between each instruction in Nanda plc IO module  the program's strict order, the order must be

 in strict accordance with the procedural requirements of the execution, in order to ensure the correctness 

of the computer work.

2 the function of controlling the operation of an instruction executed by a computer is often a component

 in a sequence of actions to achieve. CPU according to these instructions, to produce the corresponding

 operation control signals sent to the corresponding components to  Nanda plc program logic controller 

control these components according to the requirements of directive action.

3 Time Control Time Control is the timing of the implementation of a variety of operating time. During 

the execution of an instruction, and at what time to do what action should be strictly controlled. Only in 

this way, the computer can automatically work methodically.

4 data encryption for data that arithmetic and Nanda plc input output modules  logical operations, or 

other information processing.

PLC CPU Module

We are one of leading programmable logic controller (plc programmable controller) distributors from China.  PLC CPU Modules have different grades against different functions. & processing capacities to meet applications of various industrial control fields. PLC CPU Modules provide "RUN/STOP" switch to switch the CPU operation mode. It is integrated with switching value I/O and photoelectric isolation. It has RS232/RS485 communication interface for user to download and debug program, communicate with other devices. It has extension interface for high-speed data transmission between cpu modules and PLC extension modules. It is provided with power-off protection, high-speed I/O processing, analog potentiometer, password protection and real-time clock. With Watchdog function, it can be automatically reset and restarted under break-down.

what Consist CPU?

Command control logic to complete the instruction fetch, instruction and execution analysis instruction. Timing control logic to provide necessary control signals for each instruction in chronological order. General clock timing signal is the most basic, is the time base of the entire machine, called the machine speeds. The time required to execute an instruction called an instruction cycle, different instruction cycles may be different. Is generally easy to control, according to the nature of the operation and control of the different nature of the instruction, the instruction cycle will be divided into several stages, each stage is a CPU cycle. Early cpu modules memory with little difference in speed, so the plc cpu cycles and memory access cycle is generally the same, and later, with the development of CPU speed has now a lot faster than memory, CPU cycles so often defined as memory access a fraction of the cycle.

Bus control logic circuit is a plurality of features and services for information passage. Generally divided on the CPU in terms of the internal bus and CPU external bus outreach, the external bus is sometimes also called the system bus, the front side bus (FSB) and so on.

An interrupt is a computer due to an abnormal event, or some event occurs randomly require immediate treatment, cause the CPU to suspend execution of the program now, switch to another service program to deal with this incident, processed and then return to the original program process. Interrupts generated by the internal machine, we call it a trap (internal interrupt), caused by an external device interrupts called external interrupts.

industrial automation plc Instrumentation Co., Ltd. cpu modules plc

industrial automation plc Instrumentation Co., Ltd.
industrial automation plc Instrumentation Co., general include: temperature, pressure, flow, level, cpu module plc machine detection; component analysis; regulation control and enforcement of the instrument categories. Regulation and control was originally regulator, now are generally DCS / PLC control; execution classes include electric / pneumatic / hydraulic actuators and control valves. College Textbooks automated instrumentation are described in detail (this is a professional course) for you to learn more about the study.
Each class has a professional instrument manufacturers to provide, of course, can also be supplied by the plc cpu modules integrated system integration manufacturers, including installation and commissioning. Only professional manufacturers, in order to ensure quality and service.

plc cpu modules introduce some system

Specializing in redundant PLC, HMI, servo systems and precision reducer, coupling and other modern industrial equipment systems developed and produced Zsa Industrial Equipment Co., Ltd. has a high reputation in the industry, advanced technology various automation equipment, strength plc programmable logic controller  Strong and excellent services, PLC, etc. Compared with the same redundant PLC products, the advantages are very prominent. For this reason plc cpu modules will introduce H series PLC (programmable logic controller system large) functions and basic equipment:
 1.CPU base (in addition to providing Power and CPU socket, there were 4,6,8 slot I / O module slots).
 2 power supply modules.
 3.CPU module. 4.I / O modules (depending on the need to select the appropriate modules can connect up to eight modules).
5 special function modules.
6 personal computer or notebook computer, a control program edit, modify use.
 PLC is the center of high-function control system, its software compatible MODICONPLC, instruction, plc cpu modules are  plc intelligent controller compatible with communication protocols etc MODICONPLC, widely used in water treatment, buildings, machinery and processing industries. In the application can be an independent redundant control system, but also through a special built-in functions: to connect multiple PLC communication instruction to achieve distributed control functions.

plc cpu modules in cooling technology analysis

To ensure job stability and prolong the use life of the chip may not exceed the maximum temperature 85 ℃ [2]. Device operating temperature is increased by 10 ℃, its failure rate doubling [ 3 ] . In order to ensure the normal operation of electronic equipment safe and reliable long-term operation of the resistance, the use of appropriate , reliable way to control the temperature of electronic components , plc cpu modules make it work in the  programmable logic controller manufacturer environmental conditions in which the stable operation of the request does not exceed the maximum temperature . With the heat flux miniaturization of electronic components , micro- miniaturization, high integration of integrated circuits and micro- assembly is carried out , components, assemblies progress from time to time , the thermal design are also facing a severe challenge. The quality of construction of thermal power supply system can directly affect the long time stability . Heat transfer and flow brawn to school for the foundation , separate detailed structure of electronic equipment , rational and efficient design of programmable controller  the cooling installation , combined with advanced thermal analysis software simulation research, electronic devices invented a good working environment to ensure that heating components and power systems at a stable temperature can be allowed to work securely DC / DC power module thermal analysis process 1 ) analysis of the power supply circuit corresponding thermal circuit , plc cpu modules will certainly heat transfer pathway , draw the equivalent thermal model . 2 ) a power supply circuit configured to analyze planning , and certainly the main heating elements . 3 ) Application LSL establish a 3D model of the power supply of the radiator, then the application of  plc controller professional thermal simulation software EFD.Pro, based on current science and brawn numerical heat transfer theory , the practice of separating the thermal boundary conditions , stop the simulation model to establish imitation .
4 ) Stop the simulation results analysis . After stopping the simulation model to imitate , mimic the results of its analysis of whether the power fit to work requests.

How to tell the motherboard powered plc cpu modules

Now the cpu is usually powered by a 12V , the output voltage is based on the type of CPU and BIOS parameters are automatically set early with the jumper settings, this depends on the motherboard design. Voltage between 1-2v it. plc cpu modules notebook and some less than 1V. So: the input FET is 12V ( motherboard before 2005 are 5V, 3.3V power supply ) output and plc communication module  incentive side FET switching signal because it is the state , is the uncertainty of the multimeter ! CPU power supply module , an inductor with two capacitors is basically between 15W to 30W, with power divided by the current know how much voltage . Normal computer maintenance is not so troublesome , plc cpu modules that burned on another part of the same size on the line, pay attention to the voltage value on it. Almost all of the programmable logic controller plc  components is the capacitors on the motherboard burned up to the general power supply module is divided into : CPU power supply Northbridge , Southbridge power , graphics power , memory, power supply, sound card supply these parts , this is a good quality motherboard characteristics .
Generally these can be a lot of shrinking supply circuit . That is why the motherboard with some of your chips and some cheap main reason .
Feeding circuit all the way from the two capacitors, two inductors, a rectifier coil. General CPU power module you can count the plc industrial controller  number of capacitors arranged neatly near the CPU to determine a few phase supply. Others also generally be so judged .

Full servo warp knitting machine mechanical structure and working principle plc cpu modules control

 The traditional textile industry processes , including fibers, weaving, finishing and garment four parts. Weaving process , including woven , knitted , woven and non-woven . Divided into warp knitting Nanda digital input module  and weft . After all the work on the needle with a group or several groups of yarns arranged in parallel , in the warp feeding machine , but formed into a circle knit , this method is called warp knitted fabric formed by weaving called matter . Our warp knitting industry after decades of development , constant restructuring, especially high in recent years, companies in emerging regions warp starting point , reasonable structure , significant  Nanda ethernet module plc economies of scale , into scientific research universities and research institutes , as well as research combined to make our warp knitting industry has been developing rapidly , is becoming the center of world warp industry. Traditional warp knitting machines , mostly chain-type warp knitting machine , because of its mechanical structure of the spindle drive , no import electric drive , resulting in its following disadvantages: woven flowers slow and inefficient ; chain complex mechanism , each replacement of a  Nanda micro smart plc flower , you need to spend more time , and each pattern corresponds to a chain block , this time to replace the long pattern , high cost. Resulting in the production of small batch orders lost meaning ; due to the complexity of the organization , resulting in a complex pattern can not be produced on a chain block machine . Only produce relatively simple fabric flower , can not meet the increasing demands , the current full servo warp knitting machine has gradually been applied in the textile . Now all servo on warp knitting machine production , efficiency , pattern diversity, quality of products have a good advantage , and therefore will become the mainstream in the future jacquard weaving .