CN108234192A - A kind of EtherCAT network analytical equipment and method - Google Patents
A kind of EtherCAT network analytical equipment and method Download PDFInfo
- Publication number
- CN108234192A CN108234192A CN201711251990.6A CN201711251990A CN108234192A CN 108234192 A CN108234192 A CN 108234192A CN 201711251990 A CN201711251990 A CN 201711251990A CN 108234192 A CN108234192 A CN 108234192A
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- ethernet interface
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- data frame
- ethercat
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/0246—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40221—Profibus
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of EtherCAT network analytical equipment, including：For the FPGA components of data cached frame, first Ethernet interface, the second Ethernet interface and data resolution unit, wherein, FPGA components connect the first website by the first Ethernet interface, second Ethernet interface connects the second website, without direct connection relational between first, second website；First Ethernet interface is from first website crawl data frame and simultaneous transmission is to the second Ethernet interface and the FPGA components, and the second Ethernet interface is from second website crawl data frame and simultaneous transmission to first Ethernet interface and the FPGA components；FPGA components are by the data frame transfer that first, second Ethernet interface captures to the data resolution unit.The present invention obtains data frame in real time by the Ethernet interface of two unicom from EtherCAT slave stations, the no-delay caching process of data frame is carried out by FPGA components, under the operating condition for not influencing EtherCAT network, the real-time analysis of EtherCAT network state can be carried out.
Description
Technical field
The present invention relates to EtherCAT network technical field more particularly to a kind of EtherCAT network analytical equipment and sides
Method.
Background technology
EtherCAT industry real time ethernet protocol is proposed earliest by German Beckhoff companies, is formulated as IEC
One of field bus protocol standard, also become the national standard of China, EtherCAT is on the basis of common Ethernet
Develop, become the real-time control network applied to industrial circle, due to its with extremely strong stability, compatibility with it is synchronous
Property the features such as, EtherCAT become automation manufacturer carry out control based on network main trend.
Typical EtherCAT network control system includes a main website and several slave stations, and EtherCAT main websites initiate collection
Total frame carries out the communication between each slave station, and each slave node carries out lump frame to store and forward no-delayly, compare
For traditional Ethernet store-and-forward mechanism, EtherCAT slave nodes are using no-delay processing, high degree
EtherCAT network real-time is improved, therefore can be widely applied to real time kinematics control field.
Since EtherCAT slave nodes are using no-delay special mechanism, common ethernet device, example
As interchanger can not be accessed in EtherCAT network, it is necessary to using dedicated EtherCAT network analyzer to EtherCAT network
It is analyzed, still, existing scheme or product do not have the function of analyzing EtherCAT network state in real time.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of EtherCAT network analytical equipment and method.
The technical solution adopted by the present invention on the one hand for a kind of EtherCAT network analytical equipment, suitable for include two with
The EtherCAT control networks of upper website, including：For the FPGA components of data cached frame, the first Ethernet interface, second with
Too network interface and data resolution unit, wherein, the FPGA components by the first Ethernet interface connect the first website, second with
Too network interface connects the second website, without direct connection relational between first, second website；First Ethernet interface from
First website crawl data frame and simultaneous transmission to second Ethernet interface and the FPGA components, described second with
Too network interface is from second website crawl data frame and simultaneous transmission is to first Ethernet interface and the FPGA components；
The FPGA components are by the data frame transfer that first, second Ethernet interface captures to the data resolution unit.
Preferably, it suitable for having the PC ends of data-handling capacity, further includes that data frame will be captured from the slave station
It is transmitted to the USB interface at PC ends.
Preferably, the SD card component for store historical data is further included.
Preferably, the LCD module for showing EtherCAT network state is further included.
Preferably, the WiFi module for data transmission is further included.
On the other hand the technical solution adopted by the present invention is a kind of EtherCAT network analysis method, suitable for above-mentioned dress
It puts, including：The direct connection relational between two slave stations is blocked, passes through the first Ethernet interface of FPGA components connection the
One website, the second Ethernet interface connect the second website；First Ethernet interface captures data frame from first website
And simultaneous transmission is to second Ethernet interface and the FPGA components, second Ethernet interface is from second website
Data frame and simultaneous transmission are captured to first Ethernet interface and the FPGA components；The FPGA components are by first,
The data frame transfer of two Ethernet interfaces crawl is to the data resolution unit；The resolution unit is based on the processing of preset program
The data frame.
Beneficial effects of the present invention are to obtain data in real time from EtherCAT slave stations by the Ethernet interface of two unicom
Frame carries out the no-delay caching process of data frame by FPGA components, can be in the operating condition for not influencing EtherCAT network
Under, carry out the real-time analysis of EtherCAT network state.
Description of the drawings
Fig. 1 show the EtherCAT network connection diagram based on the embodiment of the present invention；
Fig. 2 show the analytical equipment structure chart based on the embodiment of the present invention；
Fig. 3 show the data transmission schematic diagram of the analytical equipment based on the embodiment of the present invention.
Specific embodiment
The present invention will be described with reference to embodiments.
Embodiment based on invention, a kind of EtherCAT network analytical equipment, suitable for including more than two websites
EtherCAT controls network, including：For the FPGA components of data cached frame, the first Ethernet interface, the second Ethernet interface
With data resolution unit, wherein, the FPGA components pass through the first Ethernet interface connect the first website, the second Ethernet interface
The second website is connected, without direct connection relational between first, second website；First Ethernet interface is from described first
Website crawl data frame and simultaneous transmission is to second Ethernet interface and the FPGA components, second Ethernet interface
From second website crawl data frame and simultaneous transmission is to first Ethernet interface and the FPGA components；The FPGA
Component is by the data frame transfer that first, second Ethernet interface captures to the data resolution unit.
Suitable for having the PC ends of data-handling capacity, which further includes passes for that will capture data frame from the slave station
Transport to the USB interface at PC ends.
The device further includes the SD card component for store historical data.
The device further includes the LCD module for showing EtherCAT network state.
The device further includes the WiFi module for data transmission.
Embodiment based on invention, a kind of EtherCAT network analysis method, suitable for above device, including：Block two
Direct connection relational between a website connects the first website by the first Ethernet interface of the FPGA components, second with
Too network interface connects the second website；First Ethernet interface is from first website crawl data frame and simultaneous transmission is to institute
State the second Ethernet interface and the FPGA components, second Ethernet interface captures data frame and same from second website
When be transmitted to first Ethernet interface and the FPGA components；The FPGA components grab first, second Ethernet interface
The data frame transfer taken is to the data resolution unit；The resolution unit is based on preset program and handles the data frame.
EtherCAT network connection diagram as shown in Figure 1, if EtherCAT network include an EtherCAT main website and
Dry slave station disconnects between any two EtherCAT websites, by two EtherCAT slave stations respectively with EtherCAT
Network analyzing apparatus is connected, the data frame being used to implement in EtherCAT network analytical equipment monitoring EtherCAT network.
As being further improved for embodiment, analytical equipment structure chart as shown in Figure 2, concrete implementation technology of the present invention
Scheme includes the system tray of the FPGA device of no-delay data cached frame and the arm processor composition for data frame analyzing identification
Structure, wherein be connected with FPGA there are two EtherCAT Industrial Ethernet interfaces, a common Ethernet interface is used for and ARM
The communication interface that processor is connected, two EtherCAT Industrial Ethernet interfaces carry out for completing to access in EtherCAT network
The snoop procedure of network data frame can complete no-delay data frame using the parallel behavior of FPGA device and monitor
Journey, so as to not influence the transmission efficiency of legacy data frame；The purposes of another common Ethernet interface is by EtherCAT network
The data frame of middle crawl passes to PC ends, and the recording process of EtherCAT network data frame can be realized using PC ends monitoring of software；
The data of FPGA device output are obtained by the communication interface being connected with arm processor, can realize arm processor processing reconciliation
The data frame recorded in analysis network, so as to obtain the effective status and data in EtherCAT network.
What arm processor was completed is the process parsed to the data frame cached in FPGA, can be by standard
EtherCAT data frames are parsed according to EtherCAT agreements, the interface being attached thereto include USB, RS232, SD card, LCD and
The modules such as WiFi, wherein USB complete be connect with PC ends computer debugging process, RS232 completion be information input it is defeated
Go out interactive function, what SD card was completed is the process that historical data stores in real time, and that LCD is completed is real-time live monitoring EtherCAT
Bus state shows that WiFi was completed is the process being wirelessly transferred to Real-time Monitoring Data, eliminates in the electric cabinet of tradition again
The difficult problem of data acquisition and monitoring.
EtherCAT data frames are handled and analyzed using arm processor, can realize simple and fast EtherCAT network
Analytic function has simple, intuitive and clear advantage；The no-delay caching process of data frame, Ke Yishi are carried out using FPGA
The present function of not influencing to carry out real-time network analysis under the premise of EtherCAT network real-time Communication for Power efficiency；It is supervised using wireless wait
Control function not only realizes EtherCAT network analytic function, can also realize real-time Data Transmission and monitoring function, realize nothing
The remote data monitoring function of line.
The data transmission schematic diagram of analytical equipment as shown in Figure 3, (i.e. the first Ethernet interface, connects for RJ45 for port 0
Mouthful) and port 1 (i.e. the second Ethernet interface, for RJ45 interfaces) connect to realize that the data between two slave stations are not interrupted, together
When port 0,1 respectively by slave station crawl real-time data transmission to corresponding buffer to ports 0,1, data are stored in by buffer to ports
FPGA components (caching for carrying out data frame), then arm processor obtains the data frame cached and is then handled, while may be used also
To set additional RJ45 that data cached in FPGA is output to PC ends.
As additional improvement, device further includes to connect from the USB at the slave station crawl data frame transfer to PC ends
Mouthful；For the SD card component of store historical data (data that i.e. data resolution unit obtains)；For showing EtherCAT network
The LCD module of state；For the WiFi module of data transmission.
The situation of data frame can be fed back and (deposit SD, be shown in LCD, other intelligence are output to eventually by WIFI
End), for example, data frame there are situation (data frame interruption whether occur), Frame processes situation (i.e. data analysis structures
Deng).
The above, only presently preferred embodiments of the present invention, the invention is not limited in the above embodiment, as long as
It reaches the technique effect of the present invention with identical means, should all belong to the scope of protection of the present invention.In the protection model of the present invention
Its technical solution and/or embodiment can have a variety of different modifications and variations in enclosing.
Claims (6)
1. a kind of EtherCAT network analytical equipment controls network suitable for the EtherCAT for including more than two websites, special
Sign is, including：
For the FPGA components of data cached frame, the first Ethernet interface, the second Ethernet interface and data resolution unit,
In,
The FPGA components connect the first website by the first Ethernet interface, and the second Ethernet interface connects the second website, institute
It states between first, second website without direct connection relational；
First Ethernet interface is from first website crawl data frame and simultaneous transmission is to second Ethernet interface
With the FPGA components, second Ethernet interface is from second website crawl data frame and simultaneous transmission is to described first
Ethernet interface and the FPGA components；
The FPGA components are by the data frame transfer that first, second Ethernet interface captures to the data resolution unit.
2. a kind of EtherCAT network analytical equipment according to claim 1, suitable for having the PC of data-handling capacity
End, which is characterized in that further include that data frame transfer will be captured to the USB interface at PC ends from the slave station.
3. a kind of EtherCAT network analytical equipment according to claim 1, which is characterized in that further include and gone through for storing
The SD card component of history data.
4. a kind of EtherCAT network analytical equipment according to claim 1, which is characterized in that further include to show
The LCD module of EtherCAT network state.
5. a kind of EtherCAT network analytical equipment according to claim 1, which is characterized in that further include and passed for data
Defeated WiFi module.
6. a kind of EtherCAT network analysis method, suitable for claim 1 described device, which is characterized in that including：
The direct connection relational between two slave stations is blocked, first stop is connected by the first Ethernet interface of the FPGA components
Point, the second Ethernet interface connect the second website；
First Ethernet interface is from first website crawl data frame and simultaneous transmission is to second Ethernet interface
With the FPGA components, second Ethernet interface is from second website crawl data frame and simultaneous transmission is to described first
Ethernet interface and the FPGA components；
The FPGA components are by the data frame transfer that first, second Ethernet interface captures to the data resolution unit；
The resolution unit is based on preset program and handles the data frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251990.6A CN108234192A (en) | 2017-12-01 | 2017-12-01 | A kind of EtherCAT network analytical equipment and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251990.6A CN108234192A (en) | 2017-12-01 | 2017-12-01 | A kind of EtherCAT network analytical equipment and method |
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| Publication Number | Publication Date |
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| CN108234192A true CN108234192A (en) | 2018-06-29 |
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| CN201711251990.6A Pending CN108234192A (en) | 2017-12-01 | 2017-12-01 | A kind of EtherCAT network analytical equipment and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262757A (en) * | 2020-01-21 | 2020-06-09 | 深圳市雷赛软件技术有限公司 | Network diagnosis parameter display method, device, motor driver, system and medium |
| CN112087400A (en) * | 2020-09-16 | 2020-12-15 | 浙江中烟工业有限责任公司 | Network flow mirroring system and method based on EtherCAT slave station chip |
| CN114338488A (en) * | 2021-12-17 | 2022-04-12 | 山东高云半导体科技有限公司 | Method and device for realizing Ethernet data observation and observation realizing equipment |
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| US20050278437A1 (en) * | 2004-05-25 | 2005-12-15 | Jianhua Xie | Network analysis software real-time |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20180629 |