CN110320853A - A kind of plc data capturing analysis method and system - Google Patents
A kind of plc data capturing analysis method and system Download PDFInfo
- Publication number
- CN110320853A CN110320853A CN201910692154.4A CN201910692154A CN110320853A CN 110320853 A CN110320853 A CN 110320853A CN 201910692154 A CN201910692154 A CN 201910692154A CN 110320853 A CN110320853 A CN 110320853A
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- plc
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer And Data Communications (AREA)
Abstract
The present invention relates to a kind of plc data capturing analysis method and systems, and wherein for method the following steps are included: providing plc data capture card, plc data capture card includes multiple PLC communication interfaces, at least one communication module, CPU and storage equipment；Automatic identification is connected to the PLC device of PLC communication interface and acquires PLC device data；Data save, the data that the data currently acquired are acquired with upper a cycle are compared, if data unanimously if do not save, if the inconsistent encrypting storing of data to store equipment in；Warning information uploads, and the data currently acquired and the threshold value table of setting are compared, if the information beyond threshold value table setting, by communication module active reporting to remote server；Storing data uploads, when the data for storing equipment storage reach setting value, whether request remote server is uploaded into data, uploads data if current remote server free, whether timing request remote server is idle if current remote server is busy, until having uploaded data.
Description
Technical field
The invention belongs to intellectualization of factories technical fields, more particularly to a kind of plc data capturing analysis method and system.
Background technique
Existing PLC producer is various, and also disunity, PLC device control and data processing are placed on mostly and operate in PC agreement
PLC gateway all only does simple protocol conversion above, and in the market for end or touchscreen configuration software, not by data
In the analysis of local end data and back-up processing.This phenomenon will result in if there is many PLC devices want uniform data acquisition point
Analysis must rely on remote server and acquire in real time, and if PLC device quantity is more, collection period is slack-off to be caused to lose very much
PLC device data, this phenomenon when intellectualized reconstruction does in large-scale type of production factory are especially prominent.
Summary of the invention
The present invention is intended to provide a kind of plc data capturing analysis method and system, to solve the above problems.For this purpose, this hair
The specific technical solution of bright use is as follows:
According to an aspect of the present invention, a kind of plc data capturing analysis method is provided, the method includes following steps
It is rapid:
Step 1: plc data capture card is provided, the plc data capture card includes multiple PLC communication interfaces, at least one
A communication module, CPU and storage equipment；
Step 2: automatic identification is connected to the PLC device of PLC communication interface and acquires PLC device data；
Step 3: data save, and the data that the data currently acquired are acquired with upper a cycle are compared, if data
Unanimously, then it does not save, if data are inconsistent, encrypting storing is into storage equipment；
Step 4: warning information uploads, and the data currently acquired and the threshold value table of setting are compared, and threshold value table is used to be associated with
The warning value of corresponding register address is specified, if the information beyond threshold value table setting, is given by communication module active reporting
Remote server；
Step 5: storing data uploads, and when the data for storing equipment storage reach setting value, will request remote server
Whether data are uploaded, if current remote server free, uploads data, if current remote server is busy, timing request is remote
Whether journey server is idle, until having uploaded data.
Further, the automatic identification in the step 2 is connected to the detailed process of the PLC device of PLC communication interface
Are as follows: whether detection PLC communication interface accesses PLC device, logical according to known PLC device agreement when detecting PLC device access
News packet carries out souning out to give out a contract for a project carrying out automatic identification PLC device type, goes out to be connected to if known PLC device protocol packet is unidentified
The PLC device of PLC communication interface then updates new PLC by remote server to remote server by communication module active reporting
Device protocol communication is wrapped to plc data capture card, then carries out automatic identification.
Further, PLC device data include data register, input register, output register, background register and
Timer Register it is data cached.
Further, the communication module includes one of ethernet module, 4G module and optical module or a variety of.
Further, the PLC communication interface includes Ethernet interface and/or RS485 mouthfuls.
Further, the method also includes steps: remote server, which passes through, to send instructions under active to plc data capture card
To obtain current PLC device information or control PLC equipment.
According to another aspect of the present invention, a kind of plc data acquisition analysis system is provided, including multiple plc datas are adopted
Truck and remote server, the plc data capture card include multiple PLC communication interfaces, communication module, CPU and store equipment,
The PLC communication interface is used for and remote server communication connection, the storage for connecting PLC device, the communication module
Equipment is for storing PLC device data and PLC device protocol packet collected, and the CPU is for executing plc data acquisition
Program is analyzed, the remote server is used to receive the PLC device data of plc data capture card upload, updates PLC device agreement
Communication packet obtains current PLC device information and control PLC equipment.
Further, the communication module includes one of ethernet module, 4G module and optical module or a variety of.
Further, the PLC communication interface includes Ethernet interface and/or RS485 mouthfuls.
The present invention by adopting the above technical scheme, has the beneficial effect that the present invention being capable of automatic identification PLC device class
Type, in real time acquisition and analysis PLC device data, by localization filtering repeated data and backup, the periodically number that reports that treated
Accordingly and active reporting warning information etc. mitigates remote server burden.
Detailed description of the invention
To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content
Point, mainly to illustrate embodiment, and the associated description of specification can be cooperated to explain the operation principles of embodiment.Cooperation ginseng
These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure
Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Fig. 1 is the overview flow chart of plc data capturing analysis method of the invention.
Fig. 2 is the frame diagram of plc data acquisition analysis system of the invention.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention is further described.
Fig. 1 shows the overview flow chart of plc data capturing analysis method of the invention.Fig. 2 shows PLC of the invention
The frame diagram of data acquisition and analysis system.Plc data acquisition analysis system may include multiple plc data capture cards 1 and long-range clothes
Business device 2.The specific structure of plc data capture card 1 and remote server 2 is described below.
Referring to Fig.1 with 2, plc data capturing analysis method of the invention is described.Wherein, method includes the following steps:
Step S1: plc data capture card 1 is provided.Plc data capture card 1 may include multiple PLC communication interfaces 11, at least
One communication module 12, CPU 13 and storage equipment 14 etc..PLC communication interface 11 is for connecting PLC device 3.It can be with
Too network interface, RS485 mouthfuls, one of USB port and RS232 mouthfuls etc. or a variety of.Preferably, PLC communication interface 11 includes Ethernet
Mouth and two kinds of interfaces of RS485 mouth.It is adaptive that Ethernet interface can be 10/100/1000Mb.Communication module 12 be used for it is long-range
2 communication connection of server can be one of ethernet module, 4G module and optical module or a variety of.Equipment 14 is stored to use
In storage program and various data, such as the PLC device data and PLC device protocol packet etc. of acquisition.PLC device agreement is logical
News packet generally comprises domestic and international PLC manufacturer common in the market (for example, Siemens, ABB, Omron, Mitsubishi and Schneider etc.)
The communications protocol of the PLC device of production.Storage equipment 14 can be integrated memory or external USB flash disk or TIF card etc..CPU
13 for executing plc data collection analysis program, specifically, the following steps S2 to S6.CPU 13 is common small-sized in the market
CPU can be ARM9 series or more.
Step S2: automatic identification is connected to the PLC device of PLC communication interface and acquires PLC device data.Specifically, it examines
Survey whether PLC communication interface 11 accesses PLC device 3.It is logical according to known PLC device agreement when detecting that PLC device 3 accesses
News packet carries out souning out to give out a contract for a project carrying out automatic identification PLC device type.Specifically, according to PLC device protocol the package list sequence
PLC device protocol packet is successively sent to the PLC communication interface 11, when the PLC device protocol packet of transmission and access should
When the PLC device successful match of PLC communication interface 11, issues identification success signal and stop sending PLC device protocol packet.
In general, PLC device protocol the package list sequence is arranged according to occupation rate of market.Certainly, user can also basis
Actual conditions are configured, and to improve equipment recognition speed, reduce the holding time of the identification process.If known PLC device association
View communication packet is unidentified to be gone out to be connected to the PLC device of the PLC communication interface, then by 12 active reporting of communication module to long-range clothes
It is engaged in device 2, new PLC device protocol packet is updated to plc data capture card 1 by remote server 2, then carry out automatic identification.?
After completing PLC device identification, PLC device data acquisition can be carried out.Wherein, PLC device data may include data register, it is defeated
Enter the data cached of register, output register, background register and Timer Register etc..
Step S3: data save.The data that the data currently acquired are acquired with upper a cycle are compared, if data
Unanimously, then it does not save, if data are inconsistent, encrypting storing is into storage equipment 14.Encryption Algorithm can use Encryption Algorithm
3DES encryption can be used, code key length is 24.This data save mode, which can substantially reduce, to be stored and is uploaded
Data volume saves memory space, and can be improved data extraction rate, reduces the burden of remote server.
Step S4: warning information uploads.The data currently acquired and the threshold value table of setting are compared, the threshold value table of setting is used
To be associated with the warning value for specifying corresponding register address.Such as data register address D 0=1 indicates that operation troubles, data are posted
Storage address D 200=0x30 indicates to illustrate A phase current overload etc. when collected data are more than the value.If exceeding threshold value table
The information of setting, then by 12 active reporting of communication module to remote server 2.Therefore, remote server can receive in time
The fault message of live PLC device is conducive to the maintenance of PLC device.
Step S5: storing data uploads.When the data for storing the storage of equipment 14 reach setting value, remote service will be requested
Whether device 2 uploads data, if current remote server 2 is idle, uploads data, if current remote server 2 is busy, periodically asks
Ask remote server 2 whether idle, until having uploaded data.This data, which upload mode, can lower remote server
Burden.Preferably, data, which upload, has breakpoint transmission function.
If wanting to obtain currently in addition, plc data capturing analysis method of the invention may further comprise the step of: remote server
PLC device information or control PLC equipment can forward PLC device to this system by sending instructions under active, and then obtain current
PLC information or control PLC equipment.
Using plc data capturing analysis method of the invention, can automatic identification PLC device type, acquisition in real time and point
PLC device data are analysed, by localization filtering repeated data and backup, periodically the data that report that treated and active reporting are accused
Alert information etc. mitigates remote server burden.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
It is white, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (9)
1. a kind of plc data capturing analysis method, which is characterized in that the method includes the following steps:
Step 1: providing plc data capture card, and the plc data capture card includes multiple PLC communication interfaces, at least one is logical
Interrogate module, CPU and storage equipment；
Step 2: automatic identification is connected to the PLC device of PLC communication interface and acquires PLC device data；
Step 3: data save, and the data that the data currently acquired are acquired with upper a cycle are compared, if data one
It causes, does not then save, if data are inconsistent, encrypting storing is into storage equipment；
Step 4: warning information uploads, and the data currently acquired and the threshold value table of setting are compared, and threshold value table is used to be associated with specified
The warning value of corresponding register address, if the information beyond threshold value table setting, by communication module active reporting to long-range
Server；
Step 5: storing data uploads, and when the data for storing equipment storage reach setting value, whether will request remote server
Data are uploaded, if current remote server free, uploads data, if current remote server is busy, timing request is remotely taken
Whether business device is idle, until having uploaded data.
2. plc data capturing analysis method as described in claim 1, which is characterized in that the automatic identification in the step 2
It is connected to the detailed process of the PLC device of PLC communication interface are as follows: whether detection PLC communication interface accesses PLC device, works as detection
To when PLC device access, sound out according to known PLC device protocol packet and give out a contract for a project come automatic identification PLC device type, if
Known PLC device protocol packet is unidentified to be gone out to be connected to the PLC device of PLC communication interface, then by communication module active
Remote server is offered, new PLC device protocol packet is updated to plc data capture card by remote server, then is carried out automatic
Identification.
3. plc data capturing analysis method as described in claim 1, which is characterized in that PLC device data include data register
Device, input register, output register, background register and Timer Register it is data cached.
4. plc data capturing analysis method as described in claim 1, which is characterized in that the communication module includes Ethernet
One of module, 4G module and optical module are a variety of.
5. plc data capturing analysis method as described in claim 1, which is characterized in that the PLC communication interface includes ether
Network interface and/or RS485 mouthfuls.
6. plc data capturing analysis method as described in claim 1, which is characterized in that the method also includes steps: long-range
Server obtains current PLC device information and control PLC equipment by being sent instructions under active to plc data capture card.
7. a kind of plc data acquisition analysis system, which is characterized in that including multiple plc data capture cards and remote server, institute
Stating plc data capture card includes multiple PLC communication interfaces, at least one communication module, CPU and storage equipment, the PLC communication
Interface is used to be used to store with remote server communication connection, the storage equipment for connecting PLC device, the communication module
PLC device data and PLC device protocol packet collected, the CPU is for executing plc data collection analysis program, institute
Remote server is stated for receiving the PLC device data of plc data capture card upload, updating PLC device protocol packet, acquisition
Current PLC device information and control PLC equipment.
8. plc data acquisition analysis system as claimed in claim 7, which is characterized in that the communication module includes Ethernet
One of module, 4G module and optical module are a variety of.
9. plc data acquisition analysis system as claimed in claim 7, which is characterized in that the PLC communication interface includes ether
Network interface and/or RS485 mouthfuls.
Priority Applications (1)
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| CN201910692154.4A CN110320853A (en) | 2019-07-30 | 2019-07-30 | A kind of plc data capturing analysis method and system |
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| CN201910692154.4A CN110320853A (en) | 2019-07-30 | 2019-07-30 | A kind of plc data capturing analysis method and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111665778A (en) * | 2020-05-29 | 2020-09-15 | 国电南瑞科技股份有限公司 | Method for rapid communication transmission and data processing between PLC and upper computer |
| CN112069166A (en) * | 2020-07-09 | 2020-12-11 | 浙江南都电源动力股份有限公司 | Power station equipment data acquisition method and system |
| CN113341832A (en) * | 2021-06-22 | 2021-09-03 | 天津航通科技有限公司 | Operation monitoring and management system for underground well equipment |
| CN115168477A (en) * | 2022-08-04 | 2022-10-11 | 东方合智数据科技(广东)有限责任公司 | Data integration method and related equipment for packaging industry based on Internet |
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| CN115168477B (en) * | 2022-08-04 | 2023-06-27 | 东方合智数据科技(广东)有限责任公司 | Data integration method and related equipment for packaging industry based on Internet |
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