CN109884978A - A kind of remote system and its method for PLC device debugging - Google Patents
A kind of remote system and its method for PLC device debugging Download PDFInfo
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- CN109884978A CN109884978A CN201910261724.4A CN201910261724A CN109884978A CN 109884978 A CN109884978 A CN 109884978A CN 201910261724 A CN201910261724 A CN 201910261724A CN 109884978 A CN109884978 A CN 109884978A
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Abstract
The remote system and its method that the invention discloses a kind of to be debugged for PLC are made of virtual serial port bridging software, background server and industrial gateway concentrator devices.Industrial gateway concentrator devices are connected by RS232/RS485 with traditional PLC device in physics wiring.Virtual serial port bridging software is connected with the IDE software of corresponding PLC by virtual serial port.Transport layer protocol central server is connected with virtual serial port bridging software by http protocol, is connected with industrial gateway concentrator devices by MQTT agreement.Industrial gateway concentrator devices connect PLC device by physics wiring, are mutually sent information in a manner of transparent transmission.Virtual serial port bridging software is equally mutually to be sent information in a manner of transparent transmission.User is not necessarily to change original program, can remotely debug to PLC device, without geographical restrictions, convenience and high-efficiency.
Description
Technical field
The present invention relates to network communications and serial communication, more particularly to a kind of PLC device based on network communication technology
The remote system and its method of debugging.
Background technique
About PLC remote debugging technology, the method generallyd use in the prior art is the PLC tune carried out by telephone wire
Examination, rate is slow and debugging cost is high.Or debugged by the PLC that router builds Virtual Private Network progress, module it is complicated and
It is subject to conditions.There are following drawbacks for conventional method:
First, environmental area limitation.Portioned product difficult wiring, and traditional method needs to introduce telephone wire or ether
Cable carries out network communication, is not suitable for the portioned product；
Second, data stability is poor.Portioned product can only carry out the transmission of data, can not be according to reality to data
Packet drop such as is safeguarded and is retransmitted at the related mechanisms；
Third, host computer configuration software are complicated.Possess troublesome parameter configuration, Yong Hucao on general upper computer software
Work gets up to need to carry out a series of parameter configuration, is easy error.
Summary of the invention
Present invention solves the technical problem that being, for above-mentioned existing technological deficiency, to provide a kind of based on network communication
The remote system and its method of the PLC device debugging of technology solve equipment difficult wiring for substituting traditional debugging technique
And the problem of data stability difference, improve the development efficiency of user.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows: a kind of long-range system for PLC device debugging
System, system is by PLC device, industrial gateway concentrator devices AP, central server, virtual serial port bridge joint upper computer software and PLC
IDE software composition, physics wiring industrial gateway concentrator devices AP is connected by RS232/RS485 with traditional PLC device, void
Quasi- serial port bridging software is connected with the IDE software of corresponding PLC by virtual serial port, transport layer protocol central server and virtual string
Mouth bridging software is connected by http protocol, is connected with industrial gateway concentrator devices AP by MQTT agreement, industrial gateway collection
Middle device equipment AP connects PLC device by physics wiring, is mutually sent information in a manner of transparent transmission, virtual serial port bridge joint
Software is mutually sent information in a manner of transparent transmission.
Using before total system, need to the port of AP connection PLC and RS485/RS232 interface baud rate etc. into
Row configuration.AP is connect by RS485/RS232 bus with PLC device.After system electrification, AP sends online life to central server
Enable frame, request establishes connection with central server, after central server confirmation message is errorless, sends acknowledgement frame, allow AP with
Central server establishes connection.AP and central server keep long by heartbeat frame and connect.Virtual serial port bridges upper computer software
After carrying out user's authorization, serial ports connection is carried out by virtual serial port technology and the IDE software of PLC, on the other hand, host computer is soft
Part establishes connection by http protocol and central server, carries out data and sends and receives.So far, entire PLC debugging is completed
Remote system link build, the IDE software of PLC and the application protocol of PLC are without change, directly in a manner of transparent transmission
Carry out the interaction of tune-up data.In network transmission, the problem of due to network stabilization, it is possible that frame losing, leaks showing for frame
As being monitored in upper computer end by data frame, leaking the mechanism such as frame re-transmission to guarantee the data stability of entire debugging system.
As an improvement: the industrial gateway concentrator devices (industrial gateway concentrator devices (AP)) include micro-control
Unit processed, DC power supply (DC) interface, MiniUSB interface, RS485 interface.
As an improvement: the central server as data medium and retransmission center, compatible http protocol and
MQTT agreement.
As an improvement: the virtual serial port bridge joint upper computer software includes device configuration, and virtual serial port bridge joint is matched
It sets, network communication module and serial communication modular.
As an improvement: the virtual serial port bridging functionality is used to simulative serial port environment, transmits the IDE software of PLC
Data information.
As an improvement: a kind of remote method for PLC device debugging, the transparent transmission mechanism, including following step
It is rapid: step 1, equipment selection, driving installation, relevant parameter configuration, connection link；Step 2, the IDE software of PLC is by tune-up data
Information is sent to virtual serial port bridge joint upper computer software；Step 3, virtual serial port bridge joint upper computer software is sent by http protocol
To central server；Step 4, central server forwards the data to specified industrial network by MQTT agreement as terminal
Close equipment；Step 5, data are transferred data to PLC device by RS232/RS485 interface by industrial gateway equipment；Step 6,
After PLC receives data information, the IDE software of PLC is sent the data to by former link.
The beneficial effects of the present invention are: the present invention solves the problems, such as traditional scheme equipment difficult wiring.The present invention is also logical
Data frame monitoring is crossed, leaks frame re-transmission mechanism to improve the data stability of debugging system.The present invention only needs simple parameter to match
It sets, a whole set of debugging system can be operated in user, is replaceable traditional debugging plan without secondary development, improves opening for user
Send out efficiency.
Present invention will be further explained below with reference to the attached drawings and examples.
Detailed description of the invention
Fig. 1 is the hardware interface figure of the AP of an embodiment of the present invention.
Fig. 2 is upper computer software functional schematic of the invention.
Fig. 3 is the data communication process figure after networking of the invention.
Fig. 4 is the structure chart of system connection relationship of the invention.
Specific embodiment
To keep the purpose of the present invention, technical scheme and beneficial effects clearer, below in conjunction with attached drawing and specific implementation
The present invention is described in further detail for example.
Fig. 1 shows the hardware interface schematic diagram facilitated using AP equipment 100 of the invention.The interface of AP includes: micro-
Control unit (MCU) 101, GPRS mould group 102, DC power supply interface 103, RS485/RS232 interface 104, MiniUSB interface 105.
Wherein MCU is the control centre of equipment, and GPRS mould group is network data transceiver part, and MiniUSB interface is parameter/configuration interface,
RS485/RS232 interface is connect by conducting wire with PLC device.
Fig. 2 shows the functional schematics facilitated using upper computer software 200 of the invention.The main function of upper computer software
It can include: http network communication module 201, user equipment authorization setting 202, virtual serial port configuration and communication module 203.It is upper
Machine software establishes connection by http network module and central server.Virtual serial port configuration is virtual by establishing with communication module
The connection of the IDE software of serial ports and PLC.
Fig. 3 shows the data communication process 300 facilitated using after networking of the invention, comprising the following steps:
IDE software 301 executes 306 after running, send tune-up data；
Upper computer software 302 executes 307, receives tune-up data and forwards tune-up data by HTTP request；
After central server 303 receives tune-up data, confirmation forwarding object executes 308, is debugged by MQTT protocol forward
Data give specified AP；
AP equipment 304 receives the tune-up data of central server transmission, confirms PLC device code, executes 309, passes through
RS485/RS232 bus is sent to PLC device；
After PLC device 305 receives tune-up data, 310 are executed, reply data is sent to by RS485/RS232 bus
AP；
AP executes 311 after receiving connection reply, and reply data is sent to central server；
After central server receives reply data, user object is confirmed, execute 312, reply data is sent to
Position machine；
Upper computer software executes 313, judges whether the secondary tune-up data transmission is correct, if incorrect, executes 314, starting
Retransmission mechanism guarantees that data are correctly transmitted, if correctly, sending data to IDE software；
IDE software executes 314,315, continues tune-up data next time and transmits.
Fig. 4 shows the structure chart 400 facilitated using present system connection relationship.Total includes the IDE of PLC
Software 401, upper computer software 402, central server 403, AP404, PLC device 405.PLC debugs the IDE by original PLC
With the serial ports of PLC device is direct-connected becomes through host computer, central server, the telecommunication network debugging system of AP.Basis is carried out to match
It sets, sets up remote debugging system, the data communication such as Fig. 3 300 can be carried out.
Claims (6)
1. a kind of remote system for PLC device debugging, it is characterised in that: system is set by PLC device, industrial gateway concentrator
The IDE software composition of standby (AP), central server, virtual serial port bridge joint upper computer software and PLC, physics wiring industrial gateway collection
Middle device equipment (AP) is connected by RS232/RS485 with traditional PLC device, and virtual serial port bridging software and the IDE of corresponding PLC are soft
Part is connected by virtual serial port, and transport layer protocol central server is connected with virtual serial port bridging software by http protocol, with
Industrial gateway concentrator devices (AP) are connected by MQTT agreement, and industrial gateway concentrator devices (AP) are connected by physics wiring
PLC device is mutually sent information in a manner of transparent transmission, and virtual serial port bridging software is in a manner of transparent transmission by information
Mutually send.
2. a kind of remote system for PLC device debugging according to claim 1, it is characterised in that: the industry
Gateway concentrator devices (industrial gateway concentrator devices (AP)) include micro-control unit, DC power supply (DC) interface, MiniUSB
Interface, RS485 interface.
3. a kind of remote system for PLC device debugging according to claim 1, it is characterised in that: the center
Server is compatible with http protocol and MQTT agreement as data medium and retransmission center.
4. a kind of remote system for PLC device debugging according to claim 1, it is characterised in that: described is virtual
Serial port bridging upper computer software includes device configuration, virtual serial port bridge configuration, network communication module and serial communication modular.
5. a kind of remote system for PLC device debugging according to claim 1, it is characterised in that: described is virtual
Serial port bridging function is used to simulative serial port environment, transmits the IDE software data information of PLC.
6. a kind of remote method for PLC device debugging according to claim 1, it is characterised in that: the transparent transmission
Mechanism, comprising the following steps:
Step 1, equipment selects, driving installation, and link is connected in relevant parameter configuration；
Step 2, tune-up data information is sent to virtual serial port bridge joint upper computer software by the IDE software of PLC；
Step 3, virtual serial port bridges upper computer software and is sent to central server by http protocol；
Step 4, central server forwards the data to specified industrial gateway equipment by MQTT agreement as terminal；
Step 5, data are transferred data to PLC device by RS232/RS485 interface by industrial gateway equipment；
Step 6, after PLC receives data information, the IDE software of PLC is sent the data to by former link.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910261724.4A CN109884978A (en) | 2019-04-02 | 2019-04-02 | A kind of remote system and its method for PLC device debugging |
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| CN201910261724.4A CN109884978A (en) | 2019-04-02 | 2019-04-02 | A kind of remote system and its method for PLC device debugging |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365521A (en) * | 2019-06-18 | 2019-10-22 | 上海电器科学研究所（集团）有限公司 | Equipment remote debugging method based on cloud gateway in a kind of novel maintenance system |
| CN110879564A (en) * | 2019-10-31 | 2020-03-13 | 军创（厦门）自动化科技有限公司 | Remote debugging and monitoring method and system for PLC (programmable logic controller) |
| CN111381553A (en) * | 2020-02-19 | 2020-07-07 | 北京航天智造科技发展有限公司 | VPN technology-based equipment and method and system for remotely maintaining PLC |
| CN111565221A (en) * | 2020-04-24 | 2020-08-21 | 株洲嘉成科技发展有限公司 | CODEPYS remote debugging module and method |
| CN112083723A (en) * | 2020-08-29 | 2020-12-15 | 苏州优智达机器人有限公司 | Self-walking equipment, control system and control method |
| CN113448310A (en) * | 2021-06-01 | 2021-09-28 | 阳春新钢铁有限责任公司 | Direct-current transmission device debugging method based on PLC routing function |
| CN116032712A (en) * | 2022-12-28 | 2023-04-28 | 北京力控元通科技有限公司 | Industrial equipment remote maintenance system and method based on N2N technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365521A (en) * | 2019-06-18 | 2019-10-22 | 上海电器科学研究所（集团）有限公司 | Equipment remote debugging method based on cloud gateway in a kind of novel maintenance system |
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| CN110879564B (en) * | 2019-10-31 | 2020-12-18 | 军创（厦门）自动化科技有限公司 | Remote debugging and monitoring method and system for PLC (programmable logic controller) |
| CN111381553A (en) * | 2020-02-19 | 2020-07-07 | 北京航天智造科技发展有限公司 | VPN technology-based equipment and method and system for remotely maintaining PLC |
| CN111565221A (en) * | 2020-04-24 | 2020-08-21 | 株洲嘉成科技发展有限公司 | CODEPYS remote debugging module and method |
| CN112083723A (en) * | 2020-08-29 | 2020-12-15 | 苏州优智达机器人有限公司 | Self-walking equipment, control system and control method |
| CN113448310A (en) * | 2021-06-01 | 2021-09-28 | 阳春新钢铁有限责任公司 | Direct-current transmission device debugging method based on PLC routing function |
| CN116032712A (en) * | 2022-12-28 | 2023-04-28 | 北京力控元通科技有限公司 | Industrial equipment remote maintenance system and method based on N2N technology |
| CN116032712B (en) * | 2022-12-28 | 2023-08-11 | 北京力控元通科技有限公司 | Industrial equipment remote maintenance system and method based on N2N technology |
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Application publication date: 20190614 |