CN107479531B - The access device communication protocol frame format information of Embedded PLC remotely determines method - Google Patents
The access device communication protocol frame format information of Embedded PLC remotely determines method Download PDFInfo
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- CN107479531B CN107479531B CN201710639474.4A CN201710639474A CN107479531B CN 107479531 B CN107479531 B CN 107479531B CN 201710639474 A CN201710639474 A CN 201710639474A CN 107479531 B CN107479531 B CN 107479531B
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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
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0256—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system
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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
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
Abstract
The access device communication protocol frame format information that the present invention provides a kind of Embedded PLC remotely determines method.The described method includes: obtaining test frame；The test frame is sent to Embedded PLC, wherein the test frame is sent to access device by the Embedded PLC, and the access device is according to the test frame feedback test result；Within first time, it is determined whether get the correct test result from the Embedded PLC, wherein the initial time of the first time is at the time of completing to send the test frame to the Embedded PLC；If getting correct test result from the Embedded PLC, correct frame format information is determined according to the test frame.The present invention realizes the long-range determination to the access device communication protocol frame format information of Embedded PLC, improves the efficiency of determining frame format information.
Description
Technical field
The present invention relates to industrial control technology more particularly to a kind of access device communication protocol frame formats of Embedded PLC
The long-range determining method of information.
Background technique
In order to improve the development efficiency of program, programmable controller (Programmable Logic is sufficiently combined
Controller, PLC) and nonshared control unit advantage, embedded PLC develops rapidly.Embedded PLC is to dedicated
Controller uses the patterned development tool of PLC, takes full advantage of the powerful processing function of existing embeded processor, fixed on demand
All kinds of nonshared control units are made, and software development is carried out to nonshared control unit using pattern development platform.Has dedicated control
The customized feature of device processed, but also with the patterned development tool of PLC.Existing Embedded PLC is widely used as monitoring system
In monitoring host computer, and by way of interface or bus by all kinds of smart machines access Embedded PLC.The smart machine of access
Such as gate inhibition, air-conditioning, UPS, oil machine, temperature and humidity.It needs to carry out by communication protocol between these smart machines and Embedded PLC
Monitoring or the interaction of control information.
In existing monitoring system, the smart machine of Embedded PLC is accessed according to type or the difference of model, it may be all right
Answer different communication protocol.All communication protocol is all stored in as the embedded of monitoring host computer in existing monitoring system
In PLC, protocol configuration is carried out according to the equipment situation of actual use when Embedded PLC accesses new equipment, therefore it is required that technology
Station carries out port initialization, protocol verification and the field operations such as writes under personnel.
However, a large amount of monitoring systems continue to bring out and dilatation construction, embedding with the fast development of Modern wireless communication cause
Enter formula PLC infield Relative distribution extensively and mutual distance farther out, the communication protocols of existing Embedded PLC and access device
Make inefficiency is discussed, so that the access of new equipment is difficult.
Summary of the invention
In a first aspect, the present invention provides a kind of the long-range true of the access device communication protocol frame format information of Embedded PLC
Determine method, be applied to exploitation host, comprising:
Obtain test frame；
The test frame is sent to embedded programmable controller PLC, wherein the test frame is by the Embedded PLC
It is sent to access device, the access device is according to the test frame feedback test result；
Within first time, it is determined whether get the correct test result from the Embedded PLC, wherein institute
At the time of the initial time of first time is stated to complete to send the test frame to the Embedded PLC；
If getting correct test result from the Embedded PLC, correct frame lattice are determined according to the test frame
Formula information.
Optionally, further includes:
If not getting correct test result from the Embedded PLC, generation error prompt information, described in execution
Obtain test frame.
Optionally, after determining correct frame format information according to the test frame described, further includes:
Externally input Communication Protocol Model is obtained, the Communication Protocol Model is embedded with N number of first kind submodel, described
First kind submodel is embedded with pictorial symbolization and the protocol frame according to the correct frame format information editor, the N be greater than
Or the integer equal to 1；
It compiles the Communication Protocol Model and obtains executable code, and the executable code is sent to described embedded
PLC。
Optionally, after the externally input Communication Protocol Model of acquisition, further includes:
It is obtained according to the Communication Protocol Model and can recognize debugging source code；
Debugging is carried out to the recognizable debugging source code and obtains debugging protocol frame, and the debugging protocol frame is sent to institute
State Embedded PLC；
It receives and debugging result is obtained according to the response message that the Embedded PLC is sent.
Optionally, described obtained according to the Communication Protocol Model can recognize debugging source code, comprising:
N number of first kind submodel is obtained from the Communication Protocol Model；
The recognizable debugging source code is obtained, the recognizable debugging source code is as described in preset recognizable variable replacement
N number of first kind submodel of pictorial symbolization.
Optionally, before the test frame to Embedded PLC transmission, further includes:
Port configuration information is obtained, the end after port initialization model is arranged is arranged according to the port configuration information
Mouth initialization model, wherein the port configuration information includes that buffer address and port write buffer address, the port are read in port
Reading buffer address is the address that the Embedded PLC presets reading buffer, and the port write buffer address is the Embedded PLC
The address of default writing buffer；
The port initialization model after the setting is sent to the Embedded PLC.
Second aspect, the present invention also provides a kind of the long-range of the access device communication protocol frame format information of Embedded PLC
It determines method, is applied to Embedded PLC, comprising:
Receive the test frame that exploitation host is sent；
The test frame is sent to the access device,
The test result that the access device is sent is received, and the test result is sent to the exploitation host, institute
Stating test result is the result that the access device is fed back according to the test frame.
Optionally, the test result is sent to after the exploitation host described, further includes:
Receive and load the executable code that the exploitation host is sent, wherein the executable code is exploitation host
To the code that Communication Protocol Model compiling obtains, the Communication Protocol Model is embedded with N number of first kind submodel, the first kind
Submodel is embedded with pictorial symbolization and the protocol frame according to correct frame format information editor, and the N is whole more than or equal to 1
Number.
Optionally, the test result is sent to after the exploitation host described, further includes:
The debugging protocol frame that the exploitation host is sent is received, and the debugging protocol frame is sent to the access and is set
It is standby, wherein the access device feeds back response message according to the debugging protocol frame；
The response message is received, and the response message is sent to the exploitation host.
Optionally, before the test frame for receiving exploitation host transmission, further includes:
Port initialization model after receiving the setting that the exploitation host is sent, and according at the beginning of the port after the setting
Beginningization model is to port initial configuration；
Wherein, the port allocation models after the setting is the port allocation models being written after port configuration information, described
Port configuration information includes that buffer address and port write buffer address are read in port, and it is described embedded that buffer address is read in the port
PLC presets the address of reading buffer, and the port write buffer address is the address that the Embedded PLC presets writing buffer.
Method provided by the invention is by obtaining test frame；The test frame is sent to Embedded PLC, wherein the survey
It tries frame and access device is sent to by the Embedded PLC, the access device is according to the test frame feedback test result；?
In one time, it is determined whether get the correct test result from the Embedded PLC, wherein the first time
Initial time is at the time of completing to send the test frame to the Embedded PLC；If being got correctly from the Embedded PLC
Test result, then correct frame format information is determined according to the test frame, realized logical to the access device of Embedded PLC
Believe the long-range determination of protocol frame format information, user can be on exploitation host to multiple access devices of each Embedded PLC
Frame verifying is carried out, can be modified to frame format adjustment according to the test result of feedback, improve determining frame format information
Efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description simply to introduce one by one, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of long-range determination of the access device communication protocol frame format information of Embedded PLC provided by the invention
Method flow diagram；
Fig. 2 is a kind of example communications system developed between host and Embedded PLC；
Fig. 3 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram；
Fig. 4 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram；
Fig. 5 is a kind of example of Communication Protocol Model；
Fig. 6 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram；
Fig. 7 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram；
Fig. 8 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram；
Fig. 9 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram；
Figure 10 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram；
Figure 11 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram；
Figure 12 is a kind of long-range determination of the access device communication protocol frame format information of Embedded PLC provided by the invention
Device；
Figure 13 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine device；
Figure 14 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine device；
Figure 15 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine device；
Figure 16 is a kind of long-range determination of the access device communication protocol frame format information of Embedded PLC provided by the invention
Device；
Figure 17 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine device.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of long-range determination of the access device communication protocol frame format information of Embedded PLC provided by the invention
Method flow diagram.Optionally, the executing subject of this method is exploitation host, which can be computer, server etc.,
Herein with no restrictions.
Embodiment as shown in Figure 1 includes:
S110 obtains test frame.
The test frame can be the externally input test frame of user, be also possible to according to the externally input frame lattice of user
Formula information and generate test frame, can also be the test frame selected in existing resources bank according to the external input of user, this
It invents without being limited thereto.The test frame can be the protocol frame comprising test instruction, and access device is received comprising the test
The protocol frame of instruction, then return to test result.
Table 1 is a kind of frame format information embodiment.
The test frame can be user and can be determined with frame format information according to as defined in the service manual of access device
's.Frame format information as shown in Table 1 includes: initial code (start code information, SOI), communication protocol version
Number (version number, VER), access device address (Access device address, ADR), access device identification code
(customer identification, CID1), control identification code (code identification, CID2), command information
Length and verification (The length and check of the command information, LENGTH), command information
(commandinfomation, INFO), verification and code (checksum code, CHECKSUM), end code (epilog
Codeinformation, EOI).Command information in the test frame can instruct for the test.
Using air-conditioning as a kind of embodiment of access device, the VER is the version number of agreement in the industry, is preset as 21H.
ADR is the address of air-conditioning, such as air-conditioning address is 1, is converted to sexadecimal digit 01H.According to agreement in the industry, the field of CID1
It is fixed as 60H (code that 60H is " dispersion air-conditioning type ").CID2 is control identification code when making command frame；Believe in response
It is return code RTN when breath.
Table 1
S120 sends the test frame to Embedded PLC, wherein the test frame is sent to by the Embedded PLC and is connect
Enter equipment, the access device is according to the test frame feedback test result.
Specifically, S120 can be between exploitation host and Embedded PLC, access device, pass through the method for data-driven
It is communicated, realizes the transmitting-receiving test of test frame, so that whether the frame format for verifying the test frame meets the logical of access device
Believe protocol requirement.
Fig. 2 is a kind of example communications system developed between host and Embedded PLC.The system includes: exploitation host, embedding
Enter formula PLC, access device.The exploitation host connects the Embedded PLC by Ethernet, and the Embedded PLC passes through logical
Believe that port connects the access device.In the Embedded PLC include multiple memory blocks, such as shown in the area X, the area Y and the area D,
Wherein, reading buffer (Read Buffer, RB) and writing buffer (Write Buffer, WB) are included at least in the area D.It is embedding
The communication port for entering formula reads buffer address 1 and port write buffer address 1 configured with port.Access device reads buffering configured with port
Address 2 and port write buffer address 2.
The communication port of the Embedded PLC configures port reading buffer address 1 to described during port initialization
The address of the RB in the area D；Configure port write buffer address 1 to the address of the WB in the area D.The communication port is from connecing as a result,
Enter the address that the data that equipment receives are directly stored in the RB in the area D, and the data that the WB in the area D updates also will be described
Corresponding access device is written in communication port.In a kind of realization side for sending the test frame to Embedded PLC as shown in Figure 2
In formula, exploitation host is communicated by Ethernet with Embedded PLC, and is developed host and read or set by the connection of the Ethernet
Set the data in the area D of Embedded PLC.
Optionally, the exploitation host includes memory block, is preset in the memory block and writes data buffer zone and reading data
Buffer area.The exploitation host is inserted in write data buffer area after obtaining the test frame, in addition, exploitation host by with
Too test frame is issued in the WB of the Embedded PLC by net.In the Embedded PLC, communication port is according to the test
Test frame in the WB is sent to access device by the access device address descriptor for including in frame.If the frame of the test frame
Format information is all correct, then the access device can have correctly received the test frame and parse and obtain in the test frame
The information such as test instruction.
The access device may include gate inhibition, air-conditioning, intelligent power supply module, oil machine, temperature and humidity sensing device, elevator system
System or industrial automation machine.
S130, within first time, it is determined whether the correct test result is got from the Embedded PLC,
In, the initial time of the first time is at the time of completing to send the test frame to the Embedded PLC.
The rate and situation that the first time is communicated with access device according to specific network condition, Embedded PLC come
It determines, such as the first time can be set as 10s.
S130 is specifically contained determines whether to get test result from the Embedded PLC, and determines and get
Whether test result is correct.
In each route correct wiring, port configuration is correct, working specification in the case where, a kind of implementation of S130 can be with
Be: in (such as 10s) at the first time, the RB inquiry every the second time (such as 0.5s) Xiang Suoshu Embedded PLC is once
It is no to have data update.If the RB of first time built-in type PLC has the data of update, the reading data for getting exploitation host are slow
Rush in area, exploitation host further determines that whether the test result got correct, S141 is entered if correct, if mistake after
It is continuous once whether to have data update to the RB of Embedded PLC inquiry every the second time, until getting correct test
As a result the frame format information mistake of the test frame or at the end of first time is determined.If determining institute at the end of first time
The frame format information mistake of test frame is stated, then generation error prompt information, executes the acquisition test frame, and show this to user
The frame format information of test frame is the prompt information of mistake.If the data that the RB of first time built-in type PLC does not update,
Determine that the frame format information mistake of the test frame, generation error prompt information execute the acquisition test frame, and aobvious to user
The frame format information for showing the test frame is the prompt information of mistake.
Wherein, described that the one kind for once whether having data to update checked to the RB of the Embedded PLC every the second time
Implementation may is that every second time, develops host to Embedded PLC and sends a read command, the read command packet
It includes the address of the RB of the Embedded PLC and reads data length.The Embedded PLC responds in the read command retrieval RB
Whether it is stored with and meets the data for reading data length, is then sent to the exploitation host if it exists.
It is described that another realization for once whether having data to update checked to the RB of the Embedded PLC every the second time
Mode may is that every second time, develops host to Embedded PLC and sends a read command, the read command includes institute
State the address of the RB of Embedded PLC.The Embedded PLC responds in the read command retrieval RB whether be stored with data, if having
Data are then sent to the exploitation host and empty the storage in RB.
If the frame format information of the test frame is all correct, the access device obtains correct according to the test frame
Test result, and the correct test result is fed back into the Embedded PLC.The communication port of the Embedded PLC is connected to
When the correct test result, buffer address 1 is read according to port and reads the correct test result to the RB in the area D
In.The exploitation host supervision has updated data into the RB and then obtains the data, and exploitation host determines the data updated
For correct test result.
S141 is correct according to the test frame acknowledgment if getting correct test result from the Embedded PLC
Frame format information.
Whether the test result is correct, and whether can be has feedback information automatically according to Embedded PLC by exploitation host
It determines, or whether is correctly determined automatically according to the information content of Embedded PLC feedback；It is also possible to by user according to insertion
Whether whether formula PLC have feedback information to determine, or correctly determined according to the information content of Embedded PLC feedback.
The correct frame format information of determination can be frame format applied by exploitation host acquisition generation test frame
The correct frame format information, exploitation host can be after the correct frame format information of determination is saved into memory,
It can be exploitation host and correct frame format information shown or be sent to other terminals to user, the invention is not limited thereto.
Method provided in this embodiment is by obtaining test frame；The test frame is sent to Embedded PLC, wherein described
Test frame is sent to access device by the Embedded PLC, and the access device is according to the test frame feedback test result；?
In first time, it is determined whether get the correct test result from the Embedded PLC, wherein the first time
Initial time be complete to the Embedded PLC send the test frame at the time of；If being got just from the Embedded PLC
True test result then determines correct frame format information according to the test frame, realizes the access device to Embedded PLC
The long-range determination of communication protocol frame format information, user can set multiple accesses of each Embedded PLC on exploitation host
It is standby to carry out frame verifying, it can be modified to frame format adjustment according to the test result of feedback, improve determining frame format information
Efficiency.
Fig. 3 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram.Table 2 is a kind of embodiment of return code.
On the basis of embodiment shown in Fig. 1, embodiment shown in Fig. 3 further include:
S142, if not getting correct test result from the Embedded PLC, generation error prompt information is held
The row S110.
It is described do not get correct test result and can be do not get return information, be also possible to get different
Normal return information, such as abnormal conditions are described with return code in the test result of acquisition.Access device is according to the survey received
Frame feedback test is tried as a result, test result includes the return code, a kind of embodiment of return code is referring to the table 2.Such as: institute
When to state the return code for including in test result be 00H, the test result is correct test result, other return codes are all wrong
Test result accidentally herein with no restrictions can also be by other marking codes.
After the test result for getting mistake, it can also show that the frame format information of the test frame is mistake to user
Miscue information, and the return code is written in the miscue information, or write-in is determined according to the return code
Error type information, the error type information may include " VER mistake ", " CHECKSUM mistake ", " CID2 is invalid " or
" invalid data ".Wherein, described " invalid data " corresponding parameter setting carried out except " booting " in the power-offstate, or booting
The parameter being arranged under state goes beyond the scope or data frame format mistake.
Table 2
| Return code | Indicate meaning |
| 00H | It is fed back when frame format information is correct |
| 01H | It is fed back when VER mistake |
| 02H | It is fed back when CHECKSUM mistake |
| 04H | It is fed back when CID2 is invalid |
| 06H | It is fed back when invalid data |
Executing the S110 specifically can be, and user believes after with reference to the prompt information according to the type of error
Breath has modified former frame format information, generates a new test frame with new frame format information.S110 is executed again until obtaining just
True test result determines correct frame format information according to the corresponding test frame of correct test result.
If the present embodiment, which passes through from the Embedded PLC, does not get correct test result, generation error prompt
Information executes the S110, realizes and obtains new test frame in frame authentication error, and user can know that frame format information has
Mistake, the then frame format information for replacing script re-start verifying, and the present embodiment is by providing a user miscue information, into one
Step improves the efficiency of determining frame format information.
Fig. 4 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram.
On the basis of Fig. 1 or embodiment illustrated in fig. 3, Fig. 4 the embodiment described is after S141, further includes:
S151, obtains externally input Communication Protocol Model, and the Communication Protocol Model is embedded with N number of first kind submodule
Type, the first kind submodel are embedded with pictorial symbolization and the protocol frame according to the correct frame format information editor, the N
For the integer more than or equal to 1.
S152 compiles the Communication Protocol Model and obtains executable code, and the executable code is sent to described
Embedded PLC.
After the corresponding test frame of correct test result has been determined, user believes according to the frame format that the test frame uses
Breath carries out the editor of Communication Protocol Model.The Communication Protocol Model can be specially the PLC program write with trapezoid figure language
Code, and C programmer is embedded in graphic language.The first kind submodel can be include pictorial symbolization and agreement
The C programmer of frame.Be written with M protocol frame in the first kind submodel of Communication Protocol Model, each protocol frame be according to
According to correct frame format information editor, M is the integer more than or equal to 1.
Fig. 5 is a kind of example of Communication Protocol Model.In Communication Protocol Model shown in fig. 5, X1, X2, X3, X4, X5, X6
It is all trigger condition.After X1 closure or X2, X3 trigger condition meet after X1 trigger condition satisfaction, item then is triggered in X4 or X5
It detects whether X6 meets when part meets, if X6 also meets, sends data frame.
Exploitation host is compiled acquisition to the Communication Protocol Model of acquisition can for what is run in Embedded PLC
Code is executed, and executable code is downloaded in the Embedded PLC, if during the Communication Protocol Model editor
Implement by standard, the Embedded PLC can operate normally the Communication Protocol Model.
The present embodiment compiles Communication Protocol Model and obtains executable generation by obtaining externally input Communication Protocol Model
Code sends executable code to Embedded PLC, complete Embedded PLC for access device Communication Protocol Model it is long-range
Building.
Fig. 6 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram.On the basis of the embodiment shown in fig. 4, embodiment shown in fig. 6 further includes debugging after the S151
Process:
S160 is obtained according to the Communication Protocol Model and be can recognize debugging source code.
S170 carries out debugging to the recognizable debugging source code and obtains debugging protocol frame, and the debugging protocol frame is sent out
It send to the Embedded PLC.
S180 is received and is obtained debugging result according to the response message that the Embedded PLC is sent.
The exploitation host can be the end computer (personal computer, PC), and there are many ends PC in the prior art
Software is developed, however these exploitation softwares can not identify pel and pictorial symbolization in the PLC program write by graphic language, nothing
Method directly debugs the Communication Protocol Model for including graphic language.The present embodiment is according to the Communication Protocol Model
The recognizable debugging source code is obtained, the recognizable debugging source code can be the agreement communicated with equipment shown a C language
Code, wherein the pictorial symbolization that may include be recognized and converted by Embedded PLC tool preset in exploitation host it is corresponding
It can recognize variable.Recognizable debugging source code is compiled and run using common C programmer exploitation software in exploitation host side.
Thus the debugging such as single step, breakpoint, variable modification are carried out to the recognizable debugging source code.
In the above-described embodiments, S160 can further include: described N number of first is obtained from the Communication Protocol Model
Class submodel；Obtain the recognizable debugging source code, the recognizable debugging source code is replaces institute by preset recognizable variable
State N number of first kind submodel of pictorial symbolization.
Specifically, can be exploitation host will be mentioned in the Communication Protocol Model by the first submodel of C language editor
It takes out, such as " sending data frame " functional block in Fig. 5, is achieved in first kind submodel in the Communication Protocol Model
Debugging prepare.
It include pictorial symbolization, such as contact X0, X1 etc. in the first kind submodel, since software is developed at the common end PC
The C programmer exploitation software for including cannot identify pictorial symbolization, and the Embedded PLC tool for developing host computer side needs in advance by this
A little pictorial symbolizations are converted to identifiable information.The identifiable information, which can be, meets can recognize for C language programming standard
Variable.The preset corresponding relationship includes the one-to-one relationship between variable and pictorial symbolization.
Host is developed in debugging process, the debugging protocol frame that the recognizable debugging source code operation issues is sent to embedding
Enter formula PLC, and can composition, transmission process, protocol frame acknowledgement frame and Embedded PLC operating status to protocol frame look into
The debugging such as see, edit.The debugging protocol frame refers to the protocol frame for debugging issued in debugging process.
In a kind of implementation of the corresponding relationship, the data of the pictorial symbolization are stored in Embedded PLC in Fig. 2
Storage unit in, the data of the recognizable variable be stored in exploitation the preset memory block of host in, the corresponding relationship
Conversion realizes the storage unit that Embedded PLC memory block replaces with exploitation host and mutually mapping.Specifically, Embedded PLC
Xm area, Ym area and Dm area of the area X, the area Y, the area D of memory block respectively with exploitation host mutually map.The mutual mapping, refers to
The data updated are sent to exploitation host when the area X of Embedded PLC memory block, the area Y or the area D data variation；Or exploitation host
The data updated are sent when the middle area Xm, the area Ym or the area Dm data variation to Embedded PLC.
In the corresponding relationship, the mapping in the area D and the area Dm further comprises that the area Dm includes reading data map section
RBm is mapped with the mapping of data map section WBm, RBm and RB data, WBm and WB data are write；It develops host and runs recognizable debugging source
When code, the protocol frame of transmission is written to WBm, and the new data of WBm is sent to WB by Ethernet；Embedded PLC detects WB number
According to changing, new data (i.e. debugging protocol frame) is sent to access device.
The data updated in WBm are specifically included by the process that Ethernet is sent to the WB: the exploitation host according to
The data updated in WBm are encapsulated and are packaged by Ethernet transport protocol, will be encapsulated packed data by Ethernet and are transmitted to institute
Embedded PLC is stated, Embedded PLC is stored in the WB from the data for obtaining in packed data and updating in WBm are encapsulated.
The present embodiment from the Communication Protocol Model by obtaining N number of first kind submodel；It can know described in acquisition
Not Tiao Shi source code, it is described it is recognizable debugging source code be by preset recognizable variable replace the pictorial symbolization N number of first kind
Submodel realizes the conversion of graphic language program to C programmer, and unrecognizable Communication Protocol Model is converted to and can be known
It Tiao Shi not source code.
Fig. 7 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram.On the basis of any embodiment shown in FIG. 1 to FIG. 6, embodiment shown in Fig. 7 before the S120,
Further include port initialization model setting up procedure:
S111 obtains port configuration information, and port initialization model is arranged according to the port configuration information and is arranged
Port initialization model afterwards, wherein the port configuration information includes that buffer address 1 and port write buffer address 1 are read in port,
It is the address that the Embedded PLC presets reading buffer that buffer address 1 is read in the port, and the port write buffer address 1 is institute
State the address that Embedded PLC presets writing buffer.
S112, Xiang Suoshu Embedded PLC send the port initialization model after the setting.
The port configuration information further includes the description of the ports such as traffic rate, data bit, stop position.The Embedded PLC
The initial configuration of communication port is carried out by the port initialization model after the setting.The port initialization model is specially
One for configuring the program code of communication port, the method that port initialization model is arranged according to the port configuration information
Being specifically as follows will be in the hardware register that be used to configure communication port described in port configuration information write-in.
The present embodiment is arranged port initialization model according to the port configuration information and obtains by obtaining port configuration information
Port initialization model after to setting, wherein the port configuration information includes that buffer address 1 and port Write post are read in port
Address 1, it is the address that the Embedded PLC presets reading buffer, the port write buffer address that buffer address 1 is read in the port
1 presets the address of writing buffer for the Embedded PLC；The port initialization after the setting is sent to the Embedded PLC
Model.The read/write address of the communication port of the Embedded PLC is determined, with the port initialization model realization after setting pair
The communication port initial configuration of Embedded PLC.
Fig. 8 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram.The executing subject of method shown in Fig. 8 can be Embedded PLC.Embodiment as shown in Figure 8 includes:
S810, receives the test frame that exploitation host is sent, and the test frame is the protocol frame for including test instruction.
The frame format information of the test frame is referring to table 1.The area D of Embedded PLC is a preset read-write buffer area, including
Reading buffer (Read Buffer, RB) and writing buffer (Write Buffer, WB).Wherein, the communication of the Embedded PLC
Port during port initialization, by port reading buffer address 1 be configured to the area D reading buffer (Read Buffer,
RB address)；Configure port write buffer address 1 to the address of the writing buffer (Write Buffer, WB) in the area D.By
This, the data that the communication port is received from access device are directly stored in the address of the RB in the area D, and the WB in the area D
Also corresponding access device will be written by the communication port in the data of update.
The exploitation host includes memory block, is preset in the memory block and writes data buffer zone and reading data buffering
Area.It develops after host obtains the test frame and inserts in write data buffer area, exploitation host is issued to described by network
Embedded PLC, Embedded PLC receives the test frame from exploitation host, and is written in WB.
S820 sends the test frame to the access device.
In the Embedded PLC, communication port sends the test frame in the WB；Include in the test frame
The access device address, the access device equal with the end device address can be handled the test frame.If
The frame format information of the test frame is all correct, then the access device correctly can parse and obtain the survey in the test frame
The information such as examination instruction.
S830 receives the test result that the access device is sent, and the test result is sent to the exploitation and is led
Machine, the test result are the result that the access device is fed back according to the test frame.
Specifically, whether access device is correct according to the frame format of test frame, returns to corresponding return code, the class of return code
Type is referring to table 2.When the return code for including in the test result is 00H, the test result is correct test result, other
Return code is all the test result of mistake.
By the test result be sent to it is described exploitation host a kind of implementation may is that at the first time (such as
In 10s), whether exploitation host once has data more every the RB inquiry of the second time (such as 0.5s) Xiang Suoshu Embedded PLC
Newly.
If the RB of first time built-in type PLC there are the data of update, the read data buffer of exploitation host is got
In RBm.
If the data that the RB of first time built-in type PLC does not update develop the frame that host determines the test frame
Format information mistake.
Wherein, described that the one kind for once whether having data to update checked to the RB of the Embedded PLC every the second time
Implementation may is that every second time, develops host to Embedded PLC and sends a read command, the read command packet
It includes the address of the RB of the Embedded PLC and reads data length.The Embedded PLC responds the read command, will be in RB
Data in read range are sent to the exploitation host；Exploitation host store data into RBm and to data carry out check and into
The examination of one step.
It is described that another realization for once whether having data to update checked to the RB of the Embedded PLC every the second time
Mode may is that every second time, develops host to Embedded PLC and sends a read command, the read command includes institute
State the address of the RB of Embedded PLC.The Embedded PLC responds in the read command retrieval RB whether have new data, if having new
Data are then sent to the exploitation host and empty the storage in RB.
If the frame format information of the test frame is all correct, the access device obtains correct according to the test frame
Test result, and the correct test result is fed back into the Embedded PLC.The communication port of the Embedded PLC is connected to
When the correct test result, buffer address 1 is read according to port and reads the correct test result to the RB in the area D
In.The exploitation host supervision has updated data into the RB and then obtains the new data, and exploitation host may further be true
Determine whether new data is correct test result.
The test frame that the present embodiment is sent by receiving exploitation host；The test frame is sent to the access device, is connect
The test result that the access device is sent is received, and the test result is sent to the exploitation host, the test result
For the access device according to the test frame feed back as a result, realizing the access device communication protocol frame to Embedded PLC
The long-range determination of format information, user can carry out frame to multiple access devices of each Embedded PLC on exploitation host and test
Card can modify to frame format adjustment according to the test result of feedback, improve the efficiency of determining frame format information.
Fig. 9 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram.On the basis of Fig. 8, embodiment shown in Fig. 9 is after the S830, further includes:
S841 receives and loads the executable code that the exploitation host is sent, wherein the executable code is exploitation
The code that host obtains Communication Protocol Model compiling, the Communication Protocol Model are embedded with N number of first kind submodel, and described the
A kind of submodel is embedded with pictorial symbolization and the protocol frame according to correct frame format information editor, and the N is more than or equal to 1
Integer
The executable code that the present embodiment is sent by receiving and loading the exploitation host, realizes to Embedded PLC
Access device communication protocol remotely construct, improve communication protocol construction efficiency.
Figure 10 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram.On the basis of any embodiment shown in Fig. 8 or Fig. 9, embodiment shown in Fig. 10 after the S830,
Further include debugging process:
S842 receives the debugging protocol frame that the exploitation host is sent, and the debugging protocol frame is sent to described connect
Enter equipment, wherein the access device feeds back response message according to the debugging protocol frame.
Specifically, the Communication Protocol Model is embedded with N number of first kind submodel, and the first kind submodel is embedded with figure
Shape label and the protocol frame according to correct frame format information editor；Exploitation host obtains described N number of from Communication Protocol Model
First kind submodel；The recognizable debugging source code is obtained, the recognizable debugging source code is by preset recognizable variable generation
For N number of first kind submodel of the pictorial symbolization；The debugging protocol frame is issued in recognizable source code debugging process.It opens
Host is sent out in debugging process, the protocol frame embedded in the Communication Protocol Model is sent to Embedded PLC.
Wherein, memory block includes the area D in Embedded PLC, and Dm area data of the area D also with the exploitation host map.It is described
The area Dm includes reading data map section RBm and writing the data map section area WBm, D to include reading data map section RBm and writing data map section
The mapping of WBm, RBm and RB data, WBm and WB data map.
Wherein, the WBm and WB realizes that the mode of data mapping includes: exploitation host when updating WBm data, to insertion
Formula PLC sends new data to update the data of WB.
The data updated in WBm are specifically included by the process that Ethernet is sent to the WB: the exploitation host according to
The data updated in WBm are encapsulated and are packaged by Ethernet transport protocol, will be encapsulated packed data by Ethernet and are transmitted to institute
Embedded PLC is stated, Embedded PLC is stored in the WB from the data for obtaining in packed data and updating in WBm are encapsulated.In WB
The data of deposit are sent to access device by the communication port of Embedded PLC.In debugging process, updated in the WBm
The data being stored in data and WB are exactly the debugging protocol frame.
S843 receives the response message, and the response message is sent to the exploitation host.
The data that access device is sent to Embedded PLC are written in the RB by communication port, and the data that RB updates pass through
The RBm is written in Ethernet.In debugging process, the data that the RBm updates are exactly access device according to the debugging agreement
The response message of frame feedback.The present embodiment passes through S843 described in the RBm and the RB data Mapping implementation.Developing host can be with
By the debug command in software development environment, the transmission process of control debugging protocol frame and the receive process of response message,
So as to realize the debugging to Communication Protocol Model.
Debugging process can be to be executed after S830, is also possible to find that Embedded PLC can not after the S841
Execution when operating normally the Communication Protocol Model, the invention is not limited thereto.
The debugging protocol frame that Embedded PLC is sent by receiving the exploitation host in the present embodiment, and by the debugging
Protocol frame is sent to the access device, wherein the access device feeds back response message according to the debugging protocol frame；It receives
The response message, and the response message is sent to the exploitation host.Realize the tune of exploitation host computer side debugging process
It tries protocol frame to send, receive and handle, and then realizes the debugging in exploitation host to recognizable debugging source code.
Figure 11 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine method flow diagram.On the basis of Fig. 8~Figure 10 any illustrated embodiment, embodiment shown in Figure 11 the S810 it
Before, further includes:
S800, receive it is described exploitation host send setting after port initialization model, and according to the setting after
Port initialization model is to port initial configuration；
Wherein, the port allocation models after the setting is the port allocation models being written after port configuration information, described
Port configuration information includes that buffer address and port write buffer address are read in port, and it is described embedded that buffer address is read in the port
PLC presets the address of reading buffer, and the port write buffer address is the address that the Embedded PLC presets writing buffer.
The port configuration information further includes the description of the ports such as traffic rate, data bit, stop position.The Embedded PLC
The initial configuration of communication port is carried out by the port initialization model.The port initialization model is specially one for matching
Set the program code of communication port.
The port initialization model that the present embodiment is sent by receiving the exploitation host, and according to the port initialization
Program realizes to embedded port initial configuration, the read/write address of the communication port provided with the Embedded PLC
The communication port initial configuration of PLC.
Figure 12 is a kind of long-range determination of the access device communication protocol frame format information of Embedded PLC provided by the invention
Device.Device as described in Figure 12 includes:
First obtains module 11, for obtaining test frame；
First sending module 12, for sending the test frame to Embedded PLC, wherein the test frame is by described embedding
Enter formula PLC and be sent to access device, the access device is according to the test frame feedback test result；
First receiving module 13, within first time, it is determined whether get correct institute from the Embedded PLC
State test result, wherein the initial time of the first time be complete to the Embedded PLC send the test frame when
It carves；
Second obtains module 14, if for getting correct test result from the Embedded PLC, according to the survey
Examination frame determines correct frame format information.
The device of embodiment illustrated in fig. 12, which accordingly can be used for executing, develops what host executed in embodiment of the method shown in Fig. 1
Step, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 13 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine device.On the basis of embodiment illustrated in fig. 12, as shown for example in fig.13 further include:
Miscue module 15, if generating mistake for not getting correct test result from the Embedded PLC
Accidentally prompt information.
The device of embodiment illustrated in fig. 13, which accordingly can be used for executing in embodiment of the method shown in Fig. 1 or Fig. 3, develops host
The step of execution, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 14 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine device.On the basis of Figure 12 or embodiment illustrated in fig. 13, embodiment as shown in figure 14 further include:
Third obtain module 16, for it is described correct frame format information is determined according to the test frame after, obtain
Externally input Communication Protocol Model, the Communication Protocol Model are embedded with N number of first kind submodel, the first kind submodel
It is embedded with pictorial symbolization and the protocol frame according to the correct frame format information editor, the N is whole more than or equal to 1
Number.
Collector 18 obtains executable code for compiling the Communication Protocol Model.
First sending module 12 is also used to the executable code being sent to the Embedded PLC by network.
The device of embodiment illustrated in fig. 14 accordingly can be used for executing to be developed in embodiment of the method shown in Fig. 1 or Fig. 3 or Fig. 4
The step of host executes, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 15 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine device.On the basis of embodiment illustrated in fig. 14, embodiment as shown in figure 15 further include:
Debugging module 17 is used for after the externally input Communication Protocol Model of acquisition, according to the communication protocol
Model, which obtains, can recognize debugging source code；Debugging is carried out to the recognizable debugging source code and obtains debugging protocol frame.
First sending module 12 is also used to the debugging protocol frame being sent to the Embedded PLC.
First receiving module 13 is also used to receive and adjusted according to the response message that the Embedded PLC is sent
Test result.
In the above-described embodiments, the debugging module 17 is further used for: the N is obtained from the Communication Protocol Model
A first kind submodel；The recognizable debugging source code is obtained, the recognizable debugging source code is by preset recognizable variable
Instead of N number of first kind submodel of the pictorial symbolization.
The debugging module 17 extracts the first kind submodel from the Communication Protocol Model；According to preset right
It should be related to, pictorial symbolization described in the first kind submodel is replaced with into recognizable variable；Pictorial symbolization is obtained to have been replaced with
The first kind submodel that can recognize variable is the recognizable debugging source code.
In the above-described embodiments, the first acquisition module 11 is also used to: sending the test to Embedded PLC described
Before frame, port configuration information is obtained, the end after port initialization model is arranged is arranged according to the port configuration information
Mouth initialization model, wherein the port configuration information includes that buffer address and port write buffer address, the port are read in port
Reading buffer address is the address that the Embedded PLC presets reading buffer, and the port write buffer address is the Embedded PLC
The address of default writing buffer；
First sending module 12 is also used to: Xiang Suoshu Embedded PLC sends the port initialization mould after the setting
Type.
The device of embodiment illustrated in fig. 15 accordingly can be used for executing the implementation of method shown in Fig. 1, Fig. 3, Fig. 4, Fig. 6 or Fig. 7
The step of exploitation host executes in example, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 16 is a kind of long-range determination of the access device communication protocol frame format information of Embedded PLC provided by the invention
Device.In embodiment as shown in figure 16, comprising:
Second receiving module 21, the test frame sent for receiving exploitation host.
Sending module 22 is sent to described open for sending the test frame to the access device, and by test result
Host is sent out, the test result is the result that the access device is fed back according to the test frame.
Third receiving module 23, the test result sent for receiving the access device.
The device of embodiment illustrated in fig. 16 accordingly can be used for executing Embedded PLC in embodiment of the method shown in Fig. 8 and execute
The step of, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 17 is the long-range true of the access device communication protocol frame format information of another Embedded PLC provided by the invention
Determine device.On the basis of embodiment illustrated in fig. 16, embodiment as shown in figure 17 further includes program loading module 24；
Second receiving module 21 is also used to that the test result is sent to after the exploitation host described,
The executable code that the exploitation host is sent, wherein the executable code is that exploitation host compiles Communication Protocol Model
The code of acquisition, the Communication Protocol Model are embedded with N number of first kind submodel, and the first kind submodel is embedded with figure mark
Note and protocol frame according to correct frame format information editor, the N is integer more than or equal to 1；
Described program loading module 24, for loading the executable code.
In the above-described embodiments, second receiving module 21 is also used to that the test result is sent to institute described
After stating exploitation host, the debugging protocol frame that the exploitation host is sent is received；
The sending module 22, is also used to for the debugging protocol frame being sent to the access device, and by response message
It is sent to the exploitation host, wherein the access device feeds back the response message according to the debugging protocol frame；
The third receiving module 23, is also used to receive the response message.
In the above-described embodiments, second receiving module 21 is also used in the test for receiving exploitation host and sending
Port initialization model before frame, after receiving the setting that the exploitation host is sent；
Described program loading module 24 is also used to match port initialization according to the port initialization model after the setting
It sets；Wherein, the port allocation models after the setting is the port allocation models being written after port configuration information, and the port is matched
Confidence breath includes that buffer address and port write buffer address are read in port, and it is that the Embedded PLC is pre- that buffer address is read in the port
If the address of reading buffer, the port write buffer address is the address that the Embedded PLC presets writing buffer.
The device of embodiment illustrated in fig. 17 accordingly can be used for executing to be embedded in any shown embodiment of the method for Fig. 8~Figure 11
The step of formula PLC is executed, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (8)
1. a kind of long-range determining method of the access device communication protocol frame format information of Embedded PLC is applied to exploitation host,
It is characterised by comprising:
Obtain test frame；
The test frame is sent to embedded programmable controller PLC, wherein the test frame is sent by the Embedded PLC
To access device, the access device is according to the test frame feedback test result；
Within first time, it is determined whether get the correct test result from the Embedded PLC, wherein described the
The initial time of one time is at the time of completing to send the test frame to the Embedded PLC；
If getting correct test result from the Embedded PLC, determine that correct frame format is believed according to the test frame
Breath；
Wherein, after determining correct frame format information according to the test frame described, further includes:
Obtaining externally input Communication Protocol Model, the Communication Protocol Model is embedded with N number of first kind submodel, and described first
Class submodel is embedded with pictorial symbolization and the protocol frame according to the correct frame format information editor, and the N is to be greater than or wait
In 1 integer；
It compiles the Communication Protocol Model and obtains executable code, and the executable code is sent to the Embedded PLC.
2. the method according to claim 1, wherein further include:
If not getting correct test result from the Embedded PLC, generation error prompt information executes the acquisition
Test frame.
3. the method according to claim 1, wherein it is described obtain externally input Communication Protocol Model it
Afterwards, further includes:
It is obtained according to the Communication Protocol Model and can recognize debugging source code；
Debugging is carried out to the recognizable debugging source code and obtains debugging protocol frame, and the debugging protocol frame is sent to described embedding
Enter formula PLC；
It receives and debugging result is obtained according to the response message that the Embedded PLC is sent.
4. according to the method described in claim 3, it is characterized in that, described obtained according to the Communication Protocol Model can recognize tune
Try source code, comprising:
N number of first kind submodel is obtained from the Communication Protocol Model；
The recognizable debugging source code is obtained, the recognizable debugging source code is to replace the figure by preset recognizable variable
N number of first kind submodel of label.
5. the method according to claim 1, wherein it is described send the test frame to Embedded PLC before,
Further include:
Port configuration information is obtained, at the beginning of the port after port initialization model is arranged is set according to the port configuration information
Beginningization model, wherein the port configuration information includes that buffer address and port write buffer address are read in port, and the port is read slow
Rushing address is the address that the Embedded PLC presets reading buffer, and the port write buffer address is default for the Embedded PLC
The address of writing buffer；
The port initialization model after the setting is sent to the Embedded PLC.
6. a kind of long-range determining method of the access device communication protocol frame format information of Embedded PLC, be applied to it is embedded can
Programmable controller PLC characterized by comprising
Receive the test frame that exploitation host is sent；
The test frame is sent to the access device；
The test result that the access device is sent is received, and the test result is sent to the exploitation host, the survey
Test result is the result that the access device is fed back according to the test frame；
Wherein, the test result is sent to after the exploitation host described, further includes:
Receive and load the executable code that the exploitation host is sent, wherein the executable code is exploitation host to logical
Believe that the code that protocol model compiling obtains, the Communication Protocol Model are embedded with N number of first kind submodel, the first kind submodule
Type is embedded with pictorial symbolization and the protocol frame according to correct frame format information editor, and the N is the integer more than or equal to 1.
7. according to the method described in claim 6, it is characterized in that, the test result is sent to the exploitation master described
After machine, further includes:
The debugging protocol frame that the exploitation host is sent is received, and the debugging protocol frame is sent to the access device,
In, the access device feeds back response message according to the debugging protocol frame；
The response message is received, and the response message is sent to the exploitation host.
8. according to the method described in claim 6, it is characterized in that, it is described receive exploitation host send test frame before,
Further include:
Port initialization model after receiving the setting that the exploitation host is sent, and according to the port initialization after the setting
Model is to port initial configuration；
Wherein, the port initialization model after the setting is the port initialization model being written after port configuration information, described
Port configuration information includes that buffer address and port write buffer address are read in port, and it is described embedded that buffer address is read in the port
PLC presets the address of reading buffer, and the port write buffer address is the address that the Embedded PLC presets writing buffer.
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| CN110205479A (en) * | 2019-06-13 | 2019-09-06 | 浦项(张家港)不锈钢股份有限公司 | A kind of stainless steel annealing pickling line PLC network communication diagnosis and processing method |
| US20220326675A1 (en) * | 2019-09-20 | 2022-10-13 | Nordson Corporation | Flexible map with application data identifiers for plc communications |
| CN111756858B (en) * | 2020-07-03 | 2023-05-26 | 潍柴动力股份有限公司 | Remote development processing system, method and device for embedded equipment |
| CN112565026B (en) * | 2021-02-20 | 2021-06-04 | 支付宝(杭州)信息技术有限公司 | Test frame generation method, device and equipment |
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Application publication date: 20171215 Assignee: TEDERIC Machinery Co.,Ltd. Assignor: Hangzhou Electronic Science and Technology Univ Contract record no.: X2019330000055 Denomination of invention: Method for remotely determining frame format information of access device communication protocol of embedded PLC Granted publication date: 20190820 License type: Common License Record date: 20191226 |