CN101697070A - Online network programming method of PLC - Google Patents
Online network programming method of PLC Download PDFInfo
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- CN101697070A CN101697070A CN200910167966A CN200910167966A CN101697070A CN 101697070 A CN101697070 A CN 101697070A CN 200910167966 A CN200910167966 A CN 200910167966A CN 200910167966 A CN200910167966 A CN 200910167966A CN 101697070 A CN101697070 A CN 101697070A
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- plc
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- programming method
- ram
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention relates to an online network programming method of a PLC, comprising the following steps of downloading application program data by an upper computer, analyzing communication port data, carrying out RAM and PLC system operation programs and running new program codes in E2ROM. During working, the upper computer downloads the application program data which are connected to a communication port of the PLC through a network, the communication port data are analyzed on the communication port of the PLC so as to confirm that the data are the application program data downloaded by the upper computer, the data are immediately stored in a RAM, and then the PLC system operation program changes the data in the RAM into running codes to be stored in the E2ROM one by one, thus the PLC runs the new program codes in the E2ROM one by one under the support of the PLC system operation program.
Description
Technical field
The present invention relates to a kind of programmed method, particularly the online network programming method of a kind of PLC.
Background technology
At present, the programming of PLC is before the opertaing device operation even before equipment is installed PLC to be programmed.So, equipment debugging will be changed PLC internal data or program therebetween inevitably, and the work of change PLC internal data or program must field conduct.Therefore make equipment debugging become very complicated, and need be many with instrument and meter, also make a mistake easily.
Summary of the invention
The purpose of the online network programming method of PLC of the present invention provides a kind of method that can carry out the download or the replacement of application program to the PLC that is connected on the network by industrial control network or Industrial Ethernet.Reaching only just can be to being connected the purpose that many PLC programme respectively or program substitutes on the network at the host computer place.
Utilize the online network programming method of this PLC, people can install and Control Network is programmed to each PLC at scene after forming one by one again at equipment, and needn't use other complicated program equipment.And in debugging, also can change the program of PLC rapidly.Even can be in the equipment operate as normal, system is changed or upgrades.
For achieving the above object, the technical scheme that the online network programming method of PLC of the present invention adopts is: the host computer download application data connects the PORT COM that arrives PLC by network, the PORT COM of PLC is carried out the PORT COM data parsing again and is confirmed that these data are host computer download application data, immediately data are deposited in the RAM, PLC system operation program is replaced by operation code one by one with the data among the RAM and is deposited E in then
2Among the ROM, so PLC just moves E one by one under the support of PLC system operation program
2New program code among the ROM.
The online network programming method of PLC of the present invention reach need not programming tool or equipment PLC is programmed, reduced the equipment input and cancelled peripherals for the PLC service, reduced the risk of control system program composition, the purpose that versatility is good.
The invention has the beneficial effects as follows: cost is low, environment for use does not limit, do not want equipment, improved work efficiency, is convenient to popularize.
Description of drawings
Fig. 1 is the program flow diagram of the online network programming method of PLC of the present invention.
Fig. 2 is the schematic diagram of the online network programming method of PLC of the present invention.
Fig. 3 is the program structure diagram of the online network programming method of PLC of the present invention.
Fig. 4 is the PLC and the host computer graph of a relation of the online network programming method of PLC of the present invention.
Embodiment
In Fig. 1, the host computer download application data connects the PORT COM that arrives PLC by network, the PORT COM of PLC is carried out the PORT COM data parsing again and is confirmed that these data are host computer download application data, immediately data are deposited in the RAM, PLC system operation program is replaced by operation code one by one with the data among the RAM and is deposited E in then
2Among the ROM, so PLC just moves E one by one under the support of PLC system operation program
2New program code among the ROM.
In Fig. 2, illustrate that the principle of the invention is to distinguish normal network operation communication data and host computer download application data, with the change of control PLC program by PORT COM data parsing data layout.
In Fig. 3, the application program that PLC is described is at PLC system operation program and E
2ROM supports operation down.
In Fig. 4, illustrate that host computer and the PLC among the present invention can mutual information transmit.
Claims (3)
1. the online network programming method of a PLC comprises host computer download application data, PORT COM data parsing, RAM, PLC system operation program, E
2New program code among the ROM, it is characterized in that: the host computer download application data connects the PORT COM that arrives PLC by network, the PORT COM of PLC is carried out the PORT COM data parsing again and is confirmed that these data are host computer download application data, immediately data are deposited in the RAM, PLC system operation program is replaced by operation code one by one with the data among the RAM and is deposited E in then
2Among the ROM.
2. based on the online network programming method of the described PLC of claim 1, it is characterized in that: be to distinguish normal network operation communication data and host computer download application data, with the change of control PLC program by PORT COM data parsing data layout.
3. based on the online network programming method of the described PLC of claim 1, it is characterized in that: the application program of PLC is at PLC system operation program and E
2ROM supports operation down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910167966A CN101697070A (en) | 2009-10-22 | 2009-10-22 | Online network programming method of PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910167966A CN101697070A (en) | 2009-10-22 | 2009-10-22 | Online network programming method of PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101697070A true CN101697070A (en) | 2010-04-21 |
Family
ID=42142177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910167966A Pending CN101697070A (en) | 2009-10-22 | 2009-10-22 | Online network programming method of PLC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101697070A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566485A (en) * | 2011-12-30 | 2012-07-11 | 深圳市合信自动化技术有限公司 | Batch loading method and system for engineering data of programmable logic controllers (PLCs) and corresponding PLCs |
| CN104331017A (en) * | 2014-11-12 | 2015-02-04 | 深圳市英威腾电气股份有限公司 | Method and device for realizing programmable logic control function of frequency converter as well as frequency converter |
| CN105843157A (en) * | 2016-03-30 | 2016-08-10 | 上海云统信息科技有限公司 | PLC system having remote data tracking and capturing function and operating method thereof |
-
2009
- 2009-10-22 CN CN200910167966A patent/CN101697070A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566485A (en) * | 2011-12-30 | 2012-07-11 | 深圳市合信自动化技术有限公司 | Batch loading method and system for engineering data of programmable logic controllers (PLCs) and corresponding PLCs |
| CN102566485B (en) * | 2011-12-30 | 2014-05-28 | 深圳市合信自动化技术有限公司 | Batch loading method and system for engineering data of programmable logic controllers (PLCs) and corresponding PLCs |
| CN104331017A (en) * | 2014-11-12 | 2015-02-04 | 深圳市英威腾电气股份有限公司 | Method and device for realizing programmable logic control function of frequency converter as well as frequency converter |
| CN104331017B (en) * | 2014-11-12 | 2018-04-20 | 深圳市英威腾电气股份有限公司 | A kind of frequency converter Programmable logical controller function realizing method, device and frequency converter |
| CN105843157A (en) * | 2016-03-30 | 2016-08-10 | 上海云统信息科技有限公司 | PLC system having remote data tracking and capturing function and operating method thereof |
| CN105843157B (en) * | 2016-03-30 | 2018-10-12 | 上海云统信息科技有限公司 | PLC system and its working method with teledata trace trap function |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100421 |