Sinoplc large PLC with advanced computer technology, control technology, communication technology and signal processing technology, can provide personalized solutions for users of different industrial sectors for logic
control, sequential control, micro smart plc process control, drive control and motion control and other fields.
Applications include electric power, petrochemical, chemical, metallurgy, energy, transportation, municipal, textile, food, paper, printing, pharmaceutical, mining, intelligent buildings, cpu modules plc air conditioning and refrigeration.
Provide LED lights, key switch, RS232 interfaces, digital output plc RS485 interfaces, PROFIBUS-DP bus interface, Ethernet interface, SD memory card slot and a spare battery slot on the CPU module panel.
cpu modules is the heart of the PLC system. It executes the control instructions of the control logic program. It also communicates with other devices, which can include I/O Devices, Programming Devices, computers, Networks, and even other plcs and also performs diagnostics tasks.
2015年5月28日星期四
2015年3月23日星期一
plc cpu machine control technologies more economic sense
Vertical machines require a higher degree of automation is a mechanical and electrical equipment , generally used in the Nanda Plc logic controllers
metallurgical industry , car manufacturing all kinds of large
workpieces ; it usually uses electronic control system failure rate
relay logic control, equipment , long maintenance cycle . With the
advancement of technology, this type of control system has shown a
growing number of drawbacks. In recent years, PLC automatic control
machines in industrial applications more widely , it is out of the
control of the comprehensive advantages in performance , group, machine
cycles and hardware costs and other aspects of the performance of other
industrial products are difficult to compare . If PLC control technology
for these systems to implement reform , the universal technical and
economic significance.
Choose a plan
Original equipment for manual operation , according to the department's recommendation to maintain the transformation of the Nanda Plc controller manufacturers former equipment man-machine interface in the transformation of the original program , which can effectively reduce the misuse of equipment personnel , the equipment does not cause the accident rate in the post- transformation increased.
Workbench transmission system relies on hydraulic unit solenoid valve to achieve, constantly changing the transmission ratio by mechanical transmission components , to achieve the purpose of changing the speed of the table . Its variable speed operation is quite complicated , we must let the host parking , selected speed , micro gear back together again Guadang bite , and finally restart. According to the site load calculation and theoretical analysis, the way to retain the main drag .
Choose a plan
Original equipment for manual operation , according to the department's recommendation to maintain the transformation of the Nanda Plc controller manufacturers former equipment man-machine interface in the transformation of the original program , which can effectively reduce the misuse of equipment personnel , the equipment does not cause the accident rate in the post- transformation increased.
Workbench transmission system relies on hydraulic unit solenoid valve to achieve, constantly changing the transmission ratio by mechanical transmission components , to achieve the purpose of changing the speed of the table . Its variable speed operation is quite complicated , we must let the host parking , selected speed , micro gear back together again Guadang bite , and finally restart. According to the site load calculation and theoretical analysis, the way to retain the main drag .
2015年3月16日星期一
Some problems plc cpu modules of
Drive in function provides a variety of fieldbus communication module
, is ideal for system integration applications , parking facilities and
remote monitoring applications ; built-in PLC function can Nanda plc controller suppliers replace
the small single-chip controllers, counters and timers , thereby
significantly reduce system cost , which is very suitable for
price-sensitive machining industry ; adopts European design , can hang
side by side rails can be added back , compact body type can be
significant savings in installation space ;
Meanwhile, the products do parallel DC bus powered , energy efficient mutual feedback absorbed , distributed braking resistor burden , and more than one use the same brake module , greatly reducing the Nanda plc digital input system cost ; fully comply with export requirements.
In addition, the product can also be convenient and flexible range of optional accessories , such as I / O card , A / D, D / A module, digital operator , PG card , communication module, the customer may need a reasonable configuration , allowing the system to achieve best value for money ; perfect protection , high accuracy current sensing , are the highlights of its functions .
Drive only in product features, performance and Nanda plc input output modules control technology are always inherited the advantages of automation Delta family , but also in the application point of view , a flexible modular design, environmental protection and energy saving aspects of innovation . But even more noteworthy is that , VFD-E series inverter built a powerful PLC 's
Meanwhile, the products do parallel DC bus powered , energy efficient mutual feedback absorbed , distributed braking resistor burden , and more than one use the same brake module , greatly reducing the Nanda plc digital input system cost ; fully comply with export requirements.
In addition, the product can also be convenient and flexible range of optional accessories , such as I / O card , A / D, D / A module, digital operator , PG card , communication module, the customer may need a reasonable configuration , allowing the system to achieve best value for money ; perfect protection , high accuracy current sensing , are the highlights of its functions .
Drive only in product features, performance and Nanda plc input output modules control technology are always inherited the advantages of automation Delta family , but also in the application point of view , a flexible modular design, environmental protection and energy saving aspects of innovation . But even more noteworthy is that , VFD-E series inverter built a powerful PLC 's
2015年3月12日星期四
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 .
2015年3月5日星期四
cpu modules plc purposes
Memory card CPU module must plug in the power-off state, the power does
not affect the operation because it is FLASH ROM.
Uninterruptible power plug, then the risk may Nanda plc supplier damage the card is such a
set of rules, who would not take the risk hot plug, if you do not believe
this ramp, then it is so dry, may be uncertain or bad, but who can not
protect you Not bad, because he is not hot swap stuff.
U disk, IC card is hot swappable, but he Nanda analog output plc has some special structure, in
addition to its reader device for his actions also have special
considerations when unplugging U disk like the best is to close , in
essence, is he not read and write.
PLC can not seen when the CPU module memory Nanda Programmable Input Module card reader U disk hot-swap
operation is described as so considered, so that you do not take risks.
not affect the operation because it is FLASH ROM.
Uninterruptible power plug, then the risk may Nanda plc supplier damage the card is such a
set of rules, who would not take the risk hot plug, if you do not believe
this ramp, then it is so dry, may be uncertain or bad, but who can not
protect you Not bad, because he is not hot swap stuff.
U disk, IC card is hot swappable, but he Nanda analog output plc has some special structure, in
addition to its reader device for his actions also have special
considerations when unplugging U disk like the best is to close , in
essence, is he not read and write.
PLC can not seen when the CPU module memory Nanda Programmable Input Module card reader U disk hot-swap
operation is described as so considered, so that you do not take risks.
2015年3月2日星期一
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.
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.
2015年2月2日星期一
Plc high speed counting modules basics
Plc high speed counting modules: PLC English stands for Programmable Logic Controller, Chinese called the programmable logic controller, is defined as: an electronic digital computing system plc programmable intelligent controller operation, designed for use in industrial environments and design. It uses a programmable memory for storing its internal procedures, to perform logical, sequential control, timing, counting and arithmetic user-oriented operating instructions, and through digital or analog input / output control of all types of machinery or production processes. DCS Distributed Control System: DCS English name DISTRIBUTED CONTROL SYSTEM, Chinese called the Distributed Control System. DCS may be interpreted as the analog loop control more widely used in the industry, as the risk plc digital input output io module resulting from the decentralized control, and management of an automated high-tech products, and display the concentration. DCS generally consists of five parts: 1: Controller 2: I / O board 3: Operating Station 4: Communication Network 5: Graphics and pass away software.
2014年12月29日星期一
CPU constitution
Sequence and data, PLC is an integral unit.
In the user view, unnecessarily detailed analysis of the internal circuit of the CPU, but each part is working mechanism should be enough to understand. The controller CPU CPU work, by its reading instruction, interpretation and execution of instructions instruction. However, the pace of work is controlled by the oscillation signal. Operator for digital or logic operations, working under the command of the controller. Intermediate result registers involved in computing, and storage operations, it also means a unitary controller deer Bru ao lt;? Br> CPU speed and memory capacity are important parameters for the PLC, which determines the operating speed of the PLC, IO number and software capacity etc., thus limiting the control scale.
2014年12月25日星期四
CPU constitution
CPU is the core of the plc cpu, functions as the nerve center, each PLC have at least one plc modules, which functions according to the program given to the PLC system to receive and store user programs and data, by way of scanning the input collected by the field device sent state or data, and stored in the specified register, while the diagnostic power and internal circuit PLC working condition and programming syntax errors. After entering the run, one by one to read the instructions from the user program memory, then the task was analyzed by Directive generate appropriate control signals to command associated control circuitry
2014年4月17日星期四
What is the definition of cpu modules plc
A friend asked: What is the definition Will module power is?
Power module can be directly mounted on a printed circuit board power supply, because of the many advantages of a modular structure, and therefore is widely used in power switching device module, the access equipment, mobile communication, microwave communication, and optical transmission, routers, etc. communications and automotive electronics, aerospace and so on.
Advantage of the power module
Simple design. Just a cpu modules plc, accompanied by industrial automation plc a small number of discrete components, you can get the power.
Power modules shorten the development cycle. Module power is generally a wide range of input and output options. Users can also repeat the superposition or cross superimposed to form a combination of modular power supplies, multi-channel input, output, greatly reduced prototype development time.
Changes flexible. Product design To change, simply convert or another suitable power supply module can be connected in parallel.
Technical requirements low. cpu modules plc generally equipped with a standardized front-end, highly integrated power modules and other components, so make power design easier.
Shell has the plc modular form module power structure collectors sink, radiator and shell Trinity achieve a module power conduction cooling, the temperature is close to the minimum value of the power supply. At the same time, it gives the power module packaging Jinyu their table.
High quality and reliable. Power modules are used in fully automated production in general, and with high-tech production technology, stable quality and reliable.
Versatile: module power can be widely used in aerospace, locomotive ships, military weapons, power generation and programmable logic control plc distribution, telecommunications, metallurgy, mining, automatic control, household appliances, instrumentation and scientific experiments in various fields of social production and life, especially in the field of high technology and high reliability plays an irreplaceable role.
Power module can be directly mounted on a printed circuit board power supply, because of the many advantages of a modular structure, and therefore is widely used in power switching device module, the access equipment, mobile communication, microwave communication, and optical transmission, routers, etc. communications and automotive electronics, aerospace and so on.
Advantage of the power module
Simple design. Just a cpu modules plc, accompanied by industrial automation plc a small number of discrete components, you can get the power.
Power modules shorten the development cycle. Module power is generally a wide range of input and output options. Users can also repeat the superposition or cross superimposed to form a combination of modular power supplies, multi-channel input, output, greatly reduced prototype development time.
Changes flexible. Product design To change, simply convert or another suitable power supply module can be connected in parallel.
Technical requirements low. cpu modules plc generally equipped with a standardized front-end, highly integrated power modules and other components, so make power design easier.
Shell has the plc modular form module power structure collectors sink, radiator and shell Trinity achieve a module power conduction cooling, the temperature is close to the minimum value of the power supply. At the same time, it gives the power module packaging Jinyu their table.
High quality and reliable. Power modules are used in fully automated production in general, and with high-tech production technology, stable quality and reliable.
Versatile: module power can be widely used in aerospace, locomotive ships, military weapons, power generation and programmable logic control plc distribution, telecommunications, metallurgy, mining, automatic control, household appliances, instrumentation and scientific experiments in various fields of social production and life, especially in the field of high technology and high reliability plays an irreplaceable role.
2014年4月14日星期一
cpu modules plc three modules were introduced
Each of the three modules are described : ( a ) video capture module
Video capture module includes built video capture wireless transmission module , such as: wireless cameras. Responsible for monitoring live video capture and compression, transmission became available for digital signals , it is not necessarily fixed within a confined area , it can be placed in any 4G signal can be received at the mobile device . Need to integrate wireless camera lens , video compression cards, wireless Internet access modules and other equipment. Network remote monitoring center can determine the specific location of the video data according to numbers from the address of each wireless camera wireless Internet access module.
Wireless camera video data is very large , in order to transmit the cpu modules plc must be compressed . Select the plc sequence of events recording module correct video compression standards to ensure clarity and transmission fluid. This is our system is an important factor in the design considerations . (B ) transmitting module
Network transmission module is responsible for transferring the video data channel , cpu modules plc Its role is to ensure a good transfer rate and delay level. In wireless video surveillance system , 4G technology can guarantee a good wireless transmission rate and delay requirements. Through the wireless transmission of video data goes into a wired plc temperature module transmission channel. The wired transmission path includes the IP transfer network operator , service gateways , PDN gateways , Internet video monitoring center and reach the wired transmission channel. After the video data is transmitted through the network module, the video monitoring center can download the video data processing and storage. (C ) video monitoring module via Internet, Ethernet connectivity , video surveillance center can have multiple physical addresses , video monitoring center is responsible for video information storage, management , querying, and real-time monitoring tasks , including Programmable Input Module video storage server management and monitoring server.
The system has a data transfer rate is high, image transmission delays small , wide scope of monitoring , access to end-users and more features , suitable for most industrial users .
Video capture module includes built video capture wireless transmission module , such as: wireless cameras. Responsible for monitoring live video capture and compression, transmission became available for digital signals , it is not necessarily fixed within a confined area , it can be placed in any 4G signal can be received at the mobile device . Need to integrate wireless camera lens , video compression cards, wireless Internet access modules and other equipment. Network remote monitoring center can determine the specific location of the video data according to numbers from the address of each wireless camera wireless Internet access module.
Wireless camera video data is very large , in order to transmit the cpu modules plc must be compressed . Select the plc sequence of events recording module correct video compression standards to ensure clarity and transmission fluid. This is our system is an important factor in the design considerations . (B ) transmitting module
Network transmission module is responsible for transferring the video data channel , cpu modules plc Its role is to ensure a good transfer rate and delay level. In wireless video surveillance system , 4G technology can guarantee a good wireless transmission rate and delay requirements. Through the wireless transmission of video data goes into a wired plc temperature module transmission channel. The wired transmission path includes the IP transfer network operator , service gateways , PDN gateways , Internet video monitoring center and reach the wired transmission channel. After the video data is transmitted through the network module, the video monitoring center can download the video data processing and storage. (C ) video monitoring module via Internet, Ethernet connectivity , video surveillance center can have multiple physical addresses , video monitoring center is responsible for video information storage, management , querying, and real-time monitoring tasks , including Programmable Input Module video storage server management and monitoring server.
The system has a data transfer rate is high, image transmission delays small , wide scope of monitoring , access to end-users and more features , suitable for most industrial users .
Process plc cpu modules and work characteristics
(A) analysis of the controlled object and made a detailed analysis of the controlled object to control the process and work characteristics, understand charged with the object of mechanical, electrical, fluid between the controlled object to the proposed control system PLC control requirements, to determine control scheme proposed design task. (B) determine the input / output control apparatus according to the system requirements, the plc sequence of events module system determines all the required input devices (such as: buttons, position switch, switch, and various sensors) and output devices (such as: contactors, solenoid valves, , signal lights, and other actuators, etc.), in order to determine the relevant PLC input / output device to determine the PLC I / O points (three) Select PLC
PLC PLC options include the choice of models, the capacity, I / O modules, power supplies, etc. (d) allocate I / O points and peripheral hardware design PLC line 1. Assign I / O points to draw the PLC I / O points and connection diagram or table correspondence between input / output devices, the part 2 can also be designed to draw the line PLC peripheral hardware rest of the system electrical circuit diagram in step 2, including the main circuit and did not enter the PLC control circuits, etc. . By the PLC's I / O connection diagram and PLC peripheral electrical circuit diagram of a system consisting of electrical schematics. Electrical wiring system hardware have been identified so far. (E) Program Design 1. Program design based on the control system requirements, the use of appropriate design approach to designing the PLC program. To control procedures in order to meet the system requirements of the main line, each writing achievement of the control functions of each sub-task or procedure, and gradually improve the system specified function. In analog output module addition, the program should normally include the following 1) initialization routine. PLC after power on, usually do some initialization operation, to start to make the necessary preparations to avoid system malfunction. The main contents of the initialization process are: the certain data area, the counter is cleared, etc., some of the data required for recovery of the data area, the relay is set for some or reset, so some initial display state.
2), such as testing, troubleshooting and display program. These procedures are relatively independent, generally when the program is completed and then add the basic design.
3) Protection and chain procedures. Protection and chain is an indispensable part of the program, must be considered carefully. The control logic it can avoid the confusion caused by the illegal operation.
2 simulation debugging program
Process simulation debugging basic idea is to facilitate the simulation of the actual site in the form of state, to create the necessary conditions for an environment to run the program. Depending on the way to generate on-site signal simulation debugging hardware method and two forms of simulation software simulation.
1) is to use some of the hardware simulation plc input output modules hardware device (such as a PLC or some other use input device, etc.) the analog signals to generate a field, and these signals are hard-wired connection connected to the input of the PLC system, the timeliness than strong. 2) simulation software is written in another set in the PLC simulation program to simulate the live signal, which is simple, but not easy to ensure timeliness. Simulation debugging, debugging can be segmented approach, and use the programmer's monitoring function.
PLC PLC options include the choice of models, the capacity, I / O modules, power supplies, etc. (d) allocate I / O points and peripheral hardware design PLC line 1. Assign I / O points to draw the PLC I / O points and connection diagram or table correspondence between input / output devices, the part 2 can also be designed to draw the line PLC peripheral hardware rest of the system electrical circuit diagram in step 2, including the main circuit and did not enter the PLC control circuits, etc. . By the PLC's I / O connection diagram and PLC peripheral electrical circuit diagram of a system consisting of electrical schematics. Electrical wiring system hardware have been identified so far. (E) Program Design 1. Program design based on the control system requirements, the use of appropriate design approach to designing the PLC program. To control procedures in order to meet the system requirements of the main line, each writing achievement of the control functions of each sub-task or procedure, and gradually improve the system specified function. In analog output module addition, the program should normally include the following 1) initialization routine. PLC after power on, usually do some initialization operation, to start to make the necessary preparations to avoid system malfunction. The main contents of the initialization process are: the certain data area, the counter is cleared, etc., some of the data required for recovery of the data area, the relay is set for some or reset, so some initial display state.
2), such as testing, troubleshooting and display program. These procedures are relatively independent, generally when the program is completed and then add the basic design.
3) Protection and chain procedures. Protection and chain is an indispensable part of the program, must be considered carefully. The control logic it can avoid the confusion caused by the illegal operation.
2 simulation debugging program
Process simulation debugging basic idea is to facilitate the simulation of the actual site in the form of state, to create the necessary conditions for an environment to run the program. Depending on the way to generate on-site signal simulation debugging hardware method and two forms of simulation software simulation.
1) is to use some of the hardware simulation plc input output modules hardware device (such as a PLC or some other use input device, etc.) the analog signals to generate a field, and these signals are hard-wired connection connected to the input of the PLC system, the timeliness than strong. 2) simulation software is written in another set in the PLC simulation program to simulate the live signal, which is simple, but not easy to ensure timeliness. Simulation debugging, debugging can be segmented approach, and use the programmer's monitoring function.
2014年4月10日星期四
The main performance cpu modules plc
The modular micro PLC system to meet the medium and small -scale performance requirements of various performance modules can be very good to meet and adapt to automation tasks simple and practical distributed plc controller suppliers architecture and multi- interface network capabilities , the application is very flexible and user-friendly and simple no fan design increases when the control task , cpu modules plc freely scalable lot of integrated features make it very robust modular micro PLC system to meet the low-end performance requirements. Modular , fanless design , easy to implement distributed architecture and operation of a variety of performance levels to facilitate CPU, the full range of modules with user- friendly features that allow the user to select the appropriate modules depending on the application . When expanded mandate , they can always upgrade the input module plc controller through the use of add-on modules . Therefore, it can create a fully integrated control system , cpu modules plc use in safety-related and non- safety-related tasks coexist plant. Using the same standard tools for configuring and programming the entire plant .
2014年4月9日星期三
plc cpu modules connected to 4G steps
1 When using the terminal, why type "AT + CFUN = 1", returned ERROR?
A: In the instructions to enter the correct premise, first confirm whether the 4G module with pc connection is successful, check plc cpu modules Device Manager - Universal Serial Bus Controller is connected to plc cpu module the device, if the device exists, then make sure USB line with the PC connection is successful, and then determine whether the module is turned on, press power button for 5 seconds, and power module, when returning + CEREG: 1:00, enter "? AT + COPS", registered network. 2 How to check the current registered network provider?
Answer: Enter "? AT + COPS", according to the return value to determine the current registered network provider. Returns + COPS: 0,0, is not registered to the network + COPS: 0,0, "CHINA MOBILE", 0 indicates registration to China Mobile's 2G network; + COPS: 0,0, "CHINA MOBILE", 2 means that the registration to China Mobile's 3G network + COPS: 0,0, "CHINA MOBILE", 7 indicates registration to China Mobile 4G network; 3 Why type, return ERROR. "AT + COPS?"?
A: In the instructions to enter the correct premise, the SIM card may be the problem, first check whether there is a SIM card slot confirm balances, confirm the SIM card and the antenna is plugged in, then enter "AT ^ DUSIMR" SIM card status query returns ^ DUSIMR: 1 indicates the plc input output modules presence of a SIM card; enter "AT + CLCK =" SC ", 2" check SIM card LOCK state, return "+ CLCK: 0 \ r \ n", the SIM card is not LOCK; enter "AT + CPIN? "check whether you need to enter the PIN code, return" + CPIN: READY "said PIN has been entered, and do not need to enter a PIN code;
4 How to activate data services?
A: Enter the "AT + CGDATA =" M-0000 ", 1" when returning CONNECT, surface data service activation is successful, then you can find the network connection is successful;
5 Enter the AT commands connect to the cpu modules plc Internet course, if there is a power outage, you can continue to operate in serial tool it?
A: No, plc cpu modules serial communication tool again to close the operation;
6 Enter the AT commands connect to the Internet course, if there is usb interface is bad, you can continue to operate in serial tool it?
A: No, you need to re-open the serial port and enter "AT + CFUN = 4" soft shutdown, then enter "AT + CFUN = 1" to get started. 7 Why 4G network connection (to activate data services) yellow exclamation mark appears, the network connection status is displayed without Internet access?
A: In the case of an unstable 4G network, the network may jump to 3G or 2G network, but the SIM card only supports 4G networks,
Enter the activation of data services in the command (AT + CGDATA = "M-0000", 1) before, enter "AT ^ DSTMEX = 1,7", this command indicates that only select Connect 4G network, and then enter "AT + CGDATA =" M-0000 ", 1" to activate data services, conduct 4G network connection.
A: In the instructions to enter the correct premise, first confirm whether the 4G module with pc connection is successful, check plc cpu modules Device Manager - Universal Serial Bus Controller is connected to plc cpu module the device, if the device exists, then make sure USB line with the PC connection is successful, and then determine whether the module is turned on, press power button for 5 seconds, and power module, when returning + CEREG: 1:00, enter "? AT + COPS", registered network. 2 How to check the current registered network provider?
Answer: Enter "? AT + COPS", according to the return value to determine the current registered network provider. Returns + COPS: 0,0, is not registered to the network + COPS: 0,0, "CHINA MOBILE", 0 indicates registration to China Mobile's 2G network; + COPS: 0,0, "CHINA MOBILE", 2 means that the registration to China Mobile's 3G network + COPS: 0,0, "CHINA MOBILE", 7 indicates registration to China Mobile 4G network; 3 Why type, return ERROR. "AT + COPS?"?
A: In the instructions to enter the correct premise, the SIM card may be the problem, first check whether there is a SIM card slot confirm balances, confirm the SIM card and the antenna is plugged in, then enter "AT ^ DUSIMR" SIM card status query returns ^ DUSIMR: 1 indicates the plc input output modules presence of a SIM card; enter "AT + CLCK =" SC ", 2" check SIM card LOCK state, return "+ CLCK: 0 \ r \ n", the SIM card is not LOCK; enter "AT + CPIN? "check whether you need to enter the PIN code, return" + CPIN: READY "said PIN has been entered, and do not need to enter a PIN code;
4 How to activate data services?
A: Enter the "AT + CGDATA =" M-0000 ", 1" when returning CONNECT, surface data service activation is successful, then you can find the network connection is successful;
5 Enter the AT commands connect to the cpu modules plc Internet course, if there is a power outage, you can continue to operate in serial tool it?
A: No, plc cpu modules serial communication tool again to close the operation;
6 Enter the AT commands connect to the Internet course, if there is usb interface is bad, you can continue to operate in serial tool it?
A: No, you need to re-open the serial port and enter "AT + CFUN = 4" soft shutdown, then enter "AT + CFUN = 1" to get started. 7 Why 4G network connection (to activate data services) yellow exclamation mark appears, the network connection status is displayed without Internet access?
A: In the case of an unstable 4G network, the network may jump to 3G or 2G network, but the SIM card only supports 4G networks,
Enter the activation of data services in the command (AT + CGDATA = "M-0000", 1) before, enter "AT ^ DSTMEX = 1,7", this command indicates that only select Connect 4G network, and then enter "AT + CGDATA =" M-0000 ", 1" to activate data services, conduct 4G network connection.
plc cpu modules capture signal input module
General PLC plc cpu modules have output input that you said body as a whole, are inseparable, the number of inputs and outputs on the body is fixed, but can be extended by the input and output modules, is the cpu modules plc main External input and output modules, the number of input and output modules of different brands and models of PLC can plug is not the same,
There is another elephant Mitsubishi Q series PLC, is a power supply module, CPU module, input modules, output modules and other components, each module separately, according to the needs of different features free combination. plc cpu modules is a single host, if a program needs to touch temperature control or analog control, or to buy a module temperature module or analog modules are connected to the PLC side, if the module is output module plc connected to more than a turn and side , No. module from the PLC and the edge is first started writing, it is Mitsubishi regulations,
Collection, such as temperature module must have a temperature sensor, temperature sensor signals to the module, temperature control, etc. By changing the procedures described here do not.
Mitsubishi module has three interfaces, you programmable logic controller can choose with, respectively, analog output, voltage output, current output, you can choose the three.
There is another elephant Mitsubishi Q series PLC, is a power supply module, CPU module, input modules, output modules and other components, each module separately, according to the needs of different features free combination. plc cpu modules is a single host, if a program needs to touch temperature control or analog control, or to buy a module temperature module or analog modules are connected to the PLC side, if the module is output module plc connected to more than a turn and side , No. module from the PLC and the edge is first started writing, it is Mitsubishi regulations,
Collection, such as temperature module must have a temperature sensor, temperature sensor signals to the module, temperature control, etc. By changing the procedures described here do not.
Mitsubishi module has three interfaces, you programmable logic controller can choose with, respectively, analog output, voltage output, current output, you can choose the three.
2014年4月2日星期三
Some of the main exposition plc cpu modules modules
If there is an alarm relay on the meter, then set the alarm temperature on the instrument, the output relay is directly connected to the digital inputs plc and public clients. If there is no alarm relay on the input module plc meter (meter is no such general alarm relay), direct access to analog values plc to make their own alarm in the program. And direct access to the analog case plc, and because plc and instrumentation wiring different models differ, analog signal inputs can be 4-20mA, it can be 0 - (5) 10V, can also be thermal resistance and the like, the situation is more, the need for specific models can be. What is the installation of the module depends on the general programmable logical controllers input and output modules are not installed the driver, but the Mitsubishi motion CPU modules need to install the driver and set up. General PLC run the installer to write a good program it. Not add a module plus a driver, such as AD / DA module, just write in the program on it. Some PLC is not with AI (analog input) and AO (analog output) function, but usually there with an expansion slot, or expansion socket for programmable logic controller adding analog input and output functions, 32DI (32 个input module), 32DO (32 output ports module), if the PLC itself comes with input and output ports is not enough, you can add these modules to perform the functions specified pull.
2014年3月31日星期一
The main analysis cpu modules
Domestic small PLC is facing another important constraint is the product of the market. PLC applications suitable for 90% of industrial and domestic applications of small businesses PLC about 20,000 , more than 90% are SMEs. Faced with such a fragmented market , domestic enterprises must micro smart plc effectively organize planning traditional sales activities. The author believes that strong marketing and foreign multinational companies are different, domestic enterprises should be on break point to end customers . We are pleased that we visited customers , about 90 percent of customers to accept the concept of domestic PLC , 50% of customers are willing to try the product , especially in the procurement process more efficient private enterprises, from the trial to be able to quickly batch procurement. From our survey, we can plc controllers see that these companies are most concerned about is not the brand, but the product performance and stability , the product is available once they are convinced it will not hesitate to use domestic PLC, because of their own production facilities and foreign products are competition. cpu modules small PLC is the product of a high degree of product , foreign multinational companies have decades of operating history , a major international supplier ranking PLC hardly changed over the past decade . Faced with such a mature , stable plc digital output market , domestic enterprises are facing difficulties can imagine , on the technology , products, brands , marketing , finance, human resources , quality, service and other factors that constitute the business chain , each link needs to carefully treatment, the risk of any one link will cause the whole chain breaks .
2014年3月13日星期四
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 .
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