CN208224773U - A kind of industrial device for embedded control based on EtherCAT bus - Google Patents
A kind of industrial device for embedded control based on EtherCAT bus Download PDFInfo
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- CN208224773U CN208224773U CN201820581544.5U CN201820581544U CN208224773U CN 208224773 U CN208224773 U CN 208224773U CN 201820581544 U CN201820581544 U CN 201820581544U CN 208224773 U CN208224773 U CN 208224773U
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- ethercat
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Abstract
The utility model belongs to mechanical device technical field, discloses a kind of industrial device for embedded control based on EtherCAT bus, and a machine cap plate is linked with above shell, and radiator-grid snaps on the left of the front surface of shell；Com interface is connected to the front surface middle of shell, converting interface is mounted on the right end of com interface, there are six converting interface, USB2.0 interfaces to be connected to the right surface of shell for setting, and micro-chip processor, timer, signal enhancer, sequencer, EtherCAT component are separately mounted to interior of shell.The utility model can carry out a completely new default to the machine in industrial production, enable the machine to the work suitable for deeper, faster speed is reached for the data acquisition such as signal processing and signal reception, and improve operating characteristics, so that the control speed and accuracy of machine is improved, the work difficulty for reducing staff, effectively raises working efficiency.
Description
Technical field
The utility model belongs to mechanical device technical field more particularly to a kind of industry insertion based on EtherCAT bus
Formula control device.
Background technique
Currently, the prior art commonly used in the trade is such that
EtherCAT (Ethernet auto-control technology) is that the scene of an open architecture based on Ethernet is total
Linear system system.
Currently, requiring to send in carrying out signal reception and transmission process for the automation equipment in some factories
One complete ethernet frame, and send it in each controller, controller needs to carry out the signal received
It reads, then just can control machine and work, need to spend the more time, existing some control devices read signal
Speed is slower, and a command signal needs the reading by multiple programs from being issued in implementation procedure, and operating characteristics is not achieved
It is required that efficiency cannot improve.
Fieldbus is industrially widely used.Since asynchronous serial communication software and hardware structure is simple, price is low
It is honest and clean, obtain the favor of engineering circles.But since asynchronous serial communication does not have the company of byte transmission in the transmission process of information
Continuous property so that not can determine that the identity of byte sender when receiving each byte, can only using agreement sender in advance with
The mode of recipient carries out information exchange；So being all master-slave mode currently based on the fieldbus of asynchronous serial communication, that is, connect
Connect in the equipment of bus at the scene, having an equipment is main equipment, remaining equipment be from equipment, distribution that fieldbus uses or
It will be carried out from the exchange of the mutual information of equipment room by main equipment.Master-slave mode fieldbus based on asynchronous serial communication has
Information transfer efficiency is lower, real-time is poor, scalability is bad, whole network can be collapsed etc. and be asked if main equipment breaks down
Topic.
In conclusion problem of the existing technology is:
For the automation equipment in some factories in carrying out signal reception and transmission process, it is complete to require transmission one
Whole ethernet frame, and send it in each controller, controller needs are read out the signal received, and
Just can control machine afterwards to work, need to spend the more time, existing some control devices read the speed of signal compared with
Slowly, a command signal needs the reading by multiple programs from being issued in implementation procedure, and operating characteristics does not reach requirement,
Efficiency cannot improve.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of industry insertion based on EtherCAT bus
Formula control device.The utility model is realized in this way a kind of industrial device for embedded control based on EtherCAT bus is set
It is equipped with: shell,
A machine cap plate is linked with above the shell, radiator-grid snaps on the left of the front surface of shell, com interface key
It connects in the front surface middle of shell, converting interface is mounted on the right end of com interface, and there are six converting interface, USB2.0 interfaces for setting
It is connected to the right surface of shell, micro-chip processor, timer, signal enhancer, sequencer, EtherCAT component, difference
It is mounted on inside the housing.
Further, the converting interface, USB2.0 interface, com interface, EtherCAT component connect micro process core by conducting wire
Piece.EtherCAT component is integrated with asynchronous serial communication fieldbus.
Further, the timer, signal enhancer, sequencer connect EtherCAT component.
Further, the micro-chip processor, timer, EtherCAT component, signal enhancer, sequencer connect lithium
Battery.
The advantages of the utility model and good effect are as follows:
The utility model can carry out a completely new default to the machine in industrial production, enable the machine to be suitable for
The work of deeper reaches faster speed for the data acquisition such as signal processing and signal reception, and improves operation
Performance reduces the work difficulty of staff, effectively raises so that the control speed and accuracy of machine is improved
Working efficiency.
It is asynchronous existing to propose more masters on the technical characteristic analysis foundation of asynchronous serial communication fieldbus for the utility model
Field bus.It leads asynchronous fieldbus more and the fieldbus right to use is arbitrated by logic circuit, obtain fieldbus and use
The information that the equipment of power is sent during bus contention still effectively and continues to send information, until an asynchronous frame data hair
It send and finishes；There is no the equipment of the bus right to use then to block asynchronous serial communication sending port, is just solved until fieldbus is released
Except asynchronous serial communication sending port is blocked.Asynchronous fieldbus is led to be connected on asynchronous serial communication fieldbus more
Equipment all has the ability of active transmission information and the point-to-point information exchange of equipment, accelerates equipment room speed of information exchange, increases
The strong stability and scalability of asynchronous serial communication fieldbus.
Detailed description of the invention
Fig. 1 is the industrial device for embedded control signal provided by the embodiment of the utility model based on EtherCAT bus
Figure.
Fig. 2 is connected inside the industrial device for embedded control provided by the embodiment of the utility model based on EtherCAT bus
Map interlinking.
In figure: 1, machine cap plate；2, shell；3, radiator-grid；4, com interface；5, converting interface；6, USB2.0 interface；7, micro-
Handle chip；8, timer；9, EtherCAT component；10, signal enhancer；11, sequencer.
Fig. 3 is micro-chip processor schematic diagram provided by the embodiment of the utility model.
Fig. 4 is the integrated asynchronous serial communication fieldbus principle of EtherCAT component provided by the embodiment of the utility model
Figure.
Specific embodiment
For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and
It is described in detail with the accompanying drawings as follows.
As Figure 1-Figure 4, the industrial embedded Control provided by the embodiment of the utility model based on EtherCAT bus
Device includes: machine cap plate 1, shell 2, radiator-grid 3, com interface 4, converting interface 5, USB interface 6, micro-chip processor 7, timer
8, EtherCAT component 9, signal enhancer 10, sequencer 11.
A machine cap plate 1 is linked with above the shell 2, radiator-grid 3 snaps on the left of the front surface of shell 2, and COM connects
Mouth 4 is connected to the front surface middle of shell 2, and converting interface 5 is mounted on the right end of com interface 4, is arranged there are six converting interface 5,
USB2.0 interface 6 is connected to the right surface of shell, micro-chip processor 7, timer 8, signal enhancer 10, sequencer 11,
EtherCAT component 9 is separately mounted to inside shell 2.
Converting interface 5, USB2.0 interface 6, com interface 4, EtherCAT component 9 connect micro-chip processor 7 by conducting wire.It is fixed
When device 8, signal enhancer 10, sequencer 11 connect EtherCAT component 9.Micro-chip processor 7, timer 8, EtherCAT
Component 9, signal enhancer 10, sequencer 11 connect lithium battery.
Working principle of the utility model is:
Device is installed, is set according to the working principle of machine, the access conducting wire of machine is inserted respectively into COM and is connect
In mouth 4 and corresponding converting interface 5, signal enhancer (FS-V11 KEYENCE NPN) 10 can put the signal received
Big processing, is then transferred in EtherCAT component 9, timer (CX3225GB12000D0HEQZ1) 8 and sequencer (TI
UCD9081 it) 11 can accurately send the signal message handled well in micro-chip processor (7SWM180CCT6-50), operate
Machine makes corresponding instruction, and the time of cost is few, and accuracy rate is high.
The utility model can carry out a completely new default to the machine in industrial production, enable the machine to be suitable for
The work of deeper reaches faster speed for the data acquisition such as signal processing and signal reception, and improves operation
Performance reduces the work difficulty of staff, effectively raises so that the control speed and accuracy of machine is improved
Working efficiency.
The EtherCAT component of the utility model has actively to make the equipment on asynchronous serial communication fieldbus all
The ability of information and the point-to-point information exchange of equipment is sent, the utility model proposes lead asynchronous fieldbus more.It leads asynchronous existing more
Field bus is using async framing as core, when the equipment being connected on fieldbus sends data as unit of frame, is sending a frame number
It according to the data interference in the process, not having from other equipment and interrupts, allows to connect by way of asynchronous serial communication
Supervention send the data with certain structure, realizes the fast exchange of the equipment room information on asynchronous serial communication fieldbus.
To achieve the goals above, the utility model principle are as follows:
Realize that equipment on asynchronous serial communication fieldbus can active transmission information, it is important to realize " asynchronous
Frame ".Data frame is the unit that data are transmitted on synchronous communication fieldbus, there is frame initial code and end code mark；And byte is
Asynchronous serial communication transmission unit；Asynchronous communication and synchronous communication have significant difference.In synchronous communication, data frame in addition to
Outer with starting and ending mark, data frame still has the data sequence of certain structure, and this data sequence defines
It needs to be transmitted and received incessantly in data transmission procedure, if being interrupted or being inserted into other information, will lead to data
Sequence it is imperfect or wrong and can not the side's of being received correct understanding；And it is data sequence that the starting and ending mark of data sequence, which is also,
This integrity of column and correct sex service.In asynchronous serial communication fieldbus, if data transmission and reception equipment
This integrity and correctness that can guarantee data sequence, then can also carry out on asynchronous serial communication fieldbus with number
It is the information exchange of unit according to frame.On leading asynchronous fieldbus, define " async framing " first more.Async framing is to use asynchronous string
The data sequence with certain structure that row communication mode transmits incessantly.That is a frame of async framing is made of multiple bytes,
With certain structure and meaning, byte in async framing is transmitted in bus at the scene by way of asynchronous serial communication；It is different
It is also available free between byte and byte although each byte has starting and stop element during step-frame transmits in bus at the scene
And pause, but the sequencing of byte remains unchanged, and is not inserted by other information, also not by other device interrupts, so that equipment
The data sequence that the data sequence received and other side send is completely the same.Namely the information exchange on more leading asynchronous fieldbus
Unit be async framing, rather than single byte, once some equipment sends data, until a frame data have been sent, centre
It will not be by other device interrupts；After data are sent, other equipment just can send data by fieldbus.
Due to external disturbance or unpredictable factor, more main asynchronous fieldbus operation disorders may be made, needed pair
Fieldbus is controlled and is safeguarded.These control and maintenance functions some reality can be subject to by the program of equipment itself
Existing, some need equipment room to realize by liaison, so, at the scene in bus, in addition to needing to transmit data for information
Exchange is outer, it is also necessary to transmit the control command of fieldbus.Therefore, the data transmitted on fieldbus are divided into two classes, it is a kind of
For bus data, another kind of is bus line command；Bus data is equipment room to exchange the information in addition to bus line command present
The data transmitted in bus, bus line command are that equipment room transmits in bus at the scene in order to safeguard the normal operation of fieldbus
Data.
Lead asynchronous fieldbus transmitting data can be ASCII coding more, be also possible to hexadecimal code.If more
What is transmitted on main asynchronous fieldbus is ASCII character, then the beginning flag of async framing and bus line command by ASCII character specific word
Symbol is constituted.If lead transmit on asynchronous fieldbus is hexadecimal code more, bus line command uses escape character to determine；
Using 00H byte representation escape, if 00H byte is followed by another 00H byte, then it represents that the 00H word in bus data
Section, if a 00H byte closely follows another non-zero 0H byte, the subsequent non-zero 0H byte of 00H byte is bus line command；It can also
To use FFH byte representation escape character, when bus data FFH byte transmission before need to be inserted into FFH byte other than, bus
Order front be also inserted into FFH byte, remaining with as the former；Actually or escape character is done using 00H byte FFH byte,
Need to see which highest priority of in bus contention the two characters；That byte of highest priority is as escape word
Symbol, it is ensured that the priority of bus line command is higher than the priority of bus data, convenient for the control and maintenance to fieldbus.
The frame structure of async framing can be defined according to specific application, but the first byte of asynchronous frame structure is necessary for
The identification code (identification code can be source address, be also possible to device identity, can also be device identifier etc.) of equipment itself,
Because the scene that the first character section of async framing needs to rise auxiliary in bus contention at the scene is total in leading asynchronous fieldbus more
Line arbitration effect.
When some equipment needs to send data to another equipment by asynchronous serial communication fieldbus, it is sent out first
What is sent is the beginning flag position code of first character, is low level " 0 " position code in existing asynchronous serial communication standard.Have
It is likely to occur two kinds of situations, a kind of situation is after this equipment starts to send data to fieldbus, and other equipment also start
Data are sent to fieldbus, that is, the first request method after one that fieldbus uses；Another situation is that this equipment
Start to fieldbus send data while, other equipment also to fieldbus send data, that is, fieldbus make
With while request method, although the probability of this mode is not high, but be likely to occur.The elder generation used for fieldbus
Request method after one arbitrates the right to use of fieldbus by the first code bus arbitration method, that is, is connected to fieldbus
On each equipment using logic circuit bus idle state begin to detection device asynchronous serial communication port input and
The consistency of output level, when some equipment starts to send data, itself asynchronous serial communication of this equipment is sended and received
Port level is consistent, does not block sending port；And the level of other equipment asynchronous serial communication receive and send ports is inconsistent,
Then block sending port.When two or more equipment sends data to fieldbus simultaneously, then the first code arbitration law cannot be true
The priority of these fixed equipment, the arbitration of the fieldbus right to use is carried out using the first byte of async framing, is sent in first byte
In the process, if equipment detects that the level of asynchronous serial communication receive and send ports is inconsistent, determine the excellent of the equipment
First grade is low, exits bus contention, blocks data sending terminal mouth, stops data and sends.
The releasing of equipment asynchronous serial communication sending port block depends on the judgement of asynchronous frame end.If fieldbus
Upper transmission is ASCII character, then the specific character of ASCII can be used to identify the end of async framing in async framing, is connected to existing
As long as each equipment on field bus receives this specific character, issues control command and release asynchronous serial communication transmitting terminal
The block of mouth.If what is transmitted on fieldbus is heuristicimal code, each equipment on fieldbus is connected to from reception
It is started counting to async framing first byte, the end of async framing is judged by byte number, and issued control command and release asynchronous string
The block of row communication sending port.
By async framing, bus line command, bus using three links of control, more main asynchronous Field bus foundation knots are constituted
Structure can actively issue information to make to be connected to each equipment on fieldbus, in a manner of asynchronous serial communication,
Information exchange is carried out as unit of async framing.
Using the block and releasing lockout circuit of the asynchronous serial communication sending port of logic element constitution equipment, realize first
Position code or first byte bus arbitration function；It realizes the frame end judgement of async framing using software (prior art) and issues to release and set
Standby asynchronous serial communication sending port block order, realizes async framing control；Using escape character identification bus order, bus is used
Order is to manage and maintain fieldbus；To realize more main asynchronous fieldbus.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (3)
1. a kind of industrial device for embedded control based on EtherCAT bus, which is characterized in that described total based on EtherCAT
The industrial device for embedded control of line is provided with shell,
A machine cap plate is linked with above shell, radiator-grid snaps on the left of the front surface of shell；Com interface is connected to shell
Front surface middle；Converting interface is mounted on the right end of com interface, and there are six converting interfaces for setting；USB2.0 interface is connected to outer
The right surface of shell；Micro-chip processor, signal enhancer, sequencer, EtherCAT component, is separately mounted to outside timer
Inside shell；
The converting interface, USB2.0 interface, com interface, EtherCAT component connect micro-chip processor by conducting wire；EtherCAT
Component is integrated with asynchronous serial communication fieldbus.
2. as described in claim 1 based on the industrial device for embedded control of EtherCAT bus, which is characterized in that the timing
Device, signal enhancer, sequencer connect EtherCAT component.
3. as described in claim 1 based on the industrial device for embedded control of EtherCAT bus, which is characterized in that micro- place
It manages chip, timer, EtherCAT component, signal enhancer, sequencer and connects lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820581544.5U CN208224773U (en) | 2018-04-23 | 2018-04-23 | A kind of industrial device for embedded control based on EtherCAT bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820581544.5U CN208224773U (en) | 2018-04-23 | 2018-04-23 | A kind of industrial device for embedded control based on EtherCAT bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208224773U true CN208224773U (en) | 2018-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820581544.5U Expired - Fee Related CN208224773U (en) | 2018-04-23 | 2018-04-23 | A kind of industrial device for embedded control based on EtherCAT bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208224773U (en) |
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2018
- 2018-04-23 CN CN201820581544.5U patent/CN208224773U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20190423 |