CN1964363B - Configurable I/O module with multiple bus interface - Google Patents
Configurable I/O module with multiple bus interface Download PDFInfo
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- CN1964363B CN1964363B CN2006101187966A CN200610118796A CN1964363B CN 1964363 B CN1964363 B CN 1964363B CN 2006101187966 A CN2006101187966 A CN 2006101187966A CN 200610118796 A CN200610118796 A CN 200610118796A CN 1964363 B CN1964363 B CN 1964363B
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Abstract
The related configurable I/O module with different bus interfaces comprises: an adaptor for maximal eight I/O modules with different type and point number, and series I/O modules. Wherein, the series I/O modules includes: 16-point input, 16-point output, 8-point relay output, digital 8-point input and output, analog 8-point input, 4-point output, and the charge measurement module. This invention automatic allocates inner bus address, scans the connected I/O modules, can automatic detect and stop work when there is error, and uses peripheral devices for display.
Description
Technical field
The present invention relates to configurable I/O module, relate in particular to configurable I/O module, belong to the field bus communication technical field with multiple bus interface.
Background technology
Along with constantly advancing of modernization industry, people have higher requirement to the control of production process.The main flow direction intelligent, networked, microminiaturized, that the contemporary automated control technology of decentralized representative develops, and field bus technique impels automated system to comply with the advanced technology of this demand for development just.
DeviceNet, ProfiBus-DP, ModBus are three kinds and use field bus technique very widely that every kind of bus all has famous Automation Co., Ltd of many families to support.
Fieldbus I/O module is the critical piece of distributed system, various field devices that module is used for connecting industrial control system are as the switching value of field devices such as transducer, button, indicator light, valve, transmitter and input, the output signal of analog quantity, and signal is sent to controller by internal bus.The I/O module is the essential product that industrial automation is used, and has been widely used in industry-by-industries such as iron and steel, oil, chemical industry, electric power, building materials, machine-building, automobile, light textile, communications and transportation, environmental protection and entertainment.
The I/O module of this technical field mostly is the I/O module of fixing point number configuration greatly at present, each I/O module all disposes the communication adapter of a band bus interface, because the cost of communication adapter part is higher relatively, and the input and output point of each I/O module is few, makes this distributed controlling cost be difficult to descend.
Therefore, be necessary the I/O module is improved.
Summary of the invention
The object of the present invention is to provide configurable I/O module with multiple bus interface, this module comprises configurable fieldbus adapter (multiple bus interface) and serial I/O module (multiple input and output type), the information interaction of main station unit with the I/O module realized in the application scenario that can be used for multibus remote I/O product.
For achieving the above object, technical scheme of the present invention is: this module comprises configurable fieldbus adapter and serial I/O module.Bus adapter is by internal bus homologous series I/O module communication swap data, and the I/O module can quantity flexible combination how wide in variety, and that internal bus uses is high-speed serial bus I2C; Bus adapter by the same main station unit of fieldbus (external bus) (being generally PLC or PC) exchange message, has just been realized the information interaction of main station unit with the I/O module again, has realized having the function of fieldbus remote I/O.
Bus adapter comprises DeviceNet, Profibus-DP, three kinds of field-bus interfaces of Modbus.
The program circuit of digital module, the program circuit of analog module have been solidified in described configurable I/O module.
Series I/O module comprises that 16 inputs of digital quantity, 16 transistors outputs of digital quantity, the output of 8 point relaies, 8 of digital quantities import 7 kinds of 8 outputs, 8 inputs of analog quantity, 4 outputs of analog quantity, electrical measurement module.
Configurable fieldbus adapter can connect maximum 8 I/O modules dissimilar, that difference is counted by internal bus; Can distribute the internal bus address automatically, the quantity and the classification of the I/O module that scanning connects, and definite IO message length and configuration file; When the I/O module that connects change or fault after, can detect automatically, report an error and quit work; Can provide current I/O modules configured situation and state to the user by RS232 serial ports and outside two kinds of approach of fieldbus; External bus module indicator light and network indicator light, internal bus status indicator lamp can be indicated various running statuses, and the state indication is clear; The dial-up setting is used in external bus baud rate and address, is provided with simple and convenient; The user can be configured configurable I/O module by the RS232 serial ports.
Beneficial effect of the present invention: the configurable I/O with multiple bus interface of the present invention can make communication adapter be connected flexibly with the I/O module, can realize the control system of multiple scale, system with this project achievement in research formation, increase I/O counts and need not rewiring, as long as on existing remote I/O module, increase new I/O module, change bus interface and need not rewiring,, can insert new bus system as long as on existing remote I/O module, connect new bus adapter; The system that module is connected to different bus only need connect different communication adapters, and is very convenient, and cost reduces and the product versatility can significantly improve.Popularization of the present invention and use have certain economic benefits.
Description of drawings
Fig. 1 has the system principle diagram of the configurable I/O module of multiple bus interface for the present invention;
Fig. 2 has the configurable fieldbus adapter block diagram of the configurable I/O module of multiple bus interface for the present invention;
Fig. 3 has the digital module block diagram of the configurable I/O module of multiple bus interface for the present invention;
Fig. 4 has the analog module block diagram of the configurable I/O module of multiple bus interface for the present invention;
Fig. 5 has the program flow diagram of adaptor module of the configurable I/O module of multiple bus interface for the present invention;
Fig. 6 has the program flow diagram of digital module of the configurable I/O module of multiple bus interface for the present invention;
Fig. 7 has the program flow diagram of analog module of the configurable I/O module of multiple bus interface for the present invention.
Below in conjunction with drawings and Examples the present invention is done detailed explanation.
Embodiment
With reference to Fig. 1, this is the system principle diagram of the configurable I/O module of the present invention with multiple bus interface.
As shown in the figure, configurable I/O comprises configurable fieldbus adapter and serial I/O module.Bus adapter is by internal bus homologous series I/O module communication swap data; Bus adapter by the same main station unit of fieldbus (external bus) (being generally PLC or PC) exchange message, has been realized the information interaction of main station unit with the I/O module again.
As shown in the figure, the I/O module can flexible combination, can realize the control system of multiple scale, when system need increase when counting, need not rewiring, and only needing to reproduce have the new module plate of increase on the remote I/O module; Module has multiple bus interface, can conveniently insert multiple bus system, satisfies the requirement of multiple bus system, when system need change bus interface, need not rewiring, as long as connect new bus adapter on existing remote I/O module.
With reference to Fig. 2, this is the configurable fieldbus adapter block diagram of configurable I of the present invention/O module.
As shown in the figure, bus adapter hardware mainly comprises: master chip LPC2292 ARM, indicator light, the dial-up that is used for the input of baud rate address, internal bus interface, external bus interface, the RS232 serial ports that is used for the host computer configuration, that the RS232 chip uses is SP3232, power supply etc.
The user can be configured configurable I/O module by upper computer software, comprises configuration I/O module number and type etc., can pass through RS232 mouth download configuration information then.After configuration is finished and is re-powered, bus adapter master chip LPC2292 ARM at first can read user's configuration information, can carry out automatic scan to the I/O module that reality connects then and (comprise automatic distribution internal bus address, read each I/O module status byte), then bus adapter can be compared user's configuration information and actual I/O block configuration, when both were consistent, configurable I/O module can enter normal operating condition.Bus adapter can carry out the initialization of external bus on the other hand, and foundation is connected with main website.In bus adapter, master chip LPC2292 ARM chip carries out I/O exchanges data (adapter of different bus can be connected to different fieldbus networks) by external bus interface with main website on the one hand, upgrades the I/O module data that connects by internal bus on the other hand.
With reference to Fig. 3, this is the digital module block diagram of configurable I of the present invention/O module.
As shown in the figure, the digital quantity hardware designs mainly comprises: main chip CPLD, light-coupled isolation, input/output interface, status indicator lamp, power supply etc.For the digital quantity input signal, signal enters CPLD through after the light-coupled isolation, and CPLD handles and gathers signal, sends bus adapter to by internal bus then; For the digital quantity output signal, after the CPLD chip bus acquisition internally dateout,, drive on-the-spot executive component with regard to the may command output interface through light-coupled isolation; CPLD shows present state by status lamp simultaneously.
With reference to Fig. 4, this is the analog module block diagram of configurable I of the present invention/O module.As shown in the figure, the analog quantity hardware designs mainly comprises: master chip P89LPC931, AD or DA chip, light-coupled isolation, input/output interface, status indicator lamp, power supply etc.In the analog output module, after the P89LPC931 bus acquisition internally dateout,, send to DA chip MAX525, after the DA conversion, by output interface output analog quantity by the SPI serial line interface through light-coupled isolation.In the analog quantity input module, after AD chip MAX1270 is converted to digital quantity signal to the analog signals of gathering, through light-coupled isolation, send to P89LPC931 by the SPI serial line interface, P89LPC931 sends data to bus adapter by internal bus more then.
With reference to Fig. 5, this is the program flow diagram of the adaptor module of configurable I of the present invention/O module.As shown in the figure, after powering at every turn, bus adapter at first can read user's configuration information, then the I/O module is resetted, the I/O module that reality connects is carried out automatic scan, the I/O module that after the end of scan reality is connected is distributed the internal bus address automatically, and definite I/O module type, determines the length of I/O message.Bus adapter can carry out the initialization of external bus then, foundation is connected with main website, and after these work were finished, bus adapter began swap data, carry out the I/O exchanges data by external bus interface and main website, upgrade the I/O module data that connects by internal bus.
With reference to Fig. 6, this is the program flow diagram of the digital module of configurable I of the present invention/O module.As shown in the figure, after powering on, at first digital quantity I/O module is carried out reset initialization, read the bus adapter addresses distributed by internal bus then, then status bytes sent is upgraded digital quantity I/O data then, and by internal bus and bus adapter exchange digital quantity I/O data.
With reference to Fig. 7, this is the program flow diagram of the analog module of configurable I of the present invention/O module.As shown in the figure, after powering on, at first analog quantity I/O module is carried out reset initialization, read the bus adapter addresses distributed by internal bus then, then status bytes sent is upgraded analog quantity I/O data then, and by internal bus and bus adapter exchange analog quantity I/O data.
Though the present invention describes with reference to the above embodiments; but those of ordinary skill in the art; will be appreciated that above embodiment is used for illustrating the present invention; should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense; so be not as limitation of the invention; as long as in connotation scope of the present invention, to the variation of above-described embodiment, the protection range that distortion all will fall into claim of the present invention.
Claims (9)
1. configurable I/O the module that has multiple bus interface is used for the application scenario of multiple bus remote I/O product, realizes the information interaction of main station unit with the I/O module, it is characterized in that:
Described configurable I/O module comprises configurable fieldbus adapter and I/O module; Described bus adapter by internal bus with I/O module communication swap data, bus adapter again by fieldbus with the main station unit exchange message, main station unit has realized having the function of fieldbus remote I/O with the information interaction of I/O module;
Solidified the program circuit of digital module in described configurable I/O module, the program circuit of analog module, the program circuit of described digital module and the program circuit of analog module comprise following configuration step: after powering at every turn, bus adapter at first can read user's configuration information, then the I/O module is resetted, the I/O module that reality connects is carried out automatic scan, the I/O module that after the end of scan reality is connected is distributed the internal bus address automatically, and definite I/O module type, determine the length of I/O message, bus adapter can carry out the initialization of fieldbus then, foundation is connected with main station unit, after these work are finished, bus adapter begins swap data, carry out the I/O exchanges data by field-bus interface and main station unit, upgrade the I/O module data that connects by internal bus.
2. have the configurable I/O module of multiple bus interface according to claim 1, it is characterized in that:
Described I/O module can quantity flexible combination how wide in variety, and that internal bus uses is high-speed serial bus 12C;
Described bus adapter comprises DeviceNet, Profibus-DP, three kinds of field-bus interfaces of Modbus.
3. have the configurable I/O module of multiple bus interface according to claim 1, it is characterized in that:
Described I/O module comprises 7 kinds of 16 transistors outputs of 16 inputs of digital quantity, digital quantity, the output of 8 point relaies, 8 outputs of 8 inputs of digital quantity, 8 inputs of analog quantity, 4 outputs of analog quantity, electrical measurement module.
4. have the configurable I/O module of multiple bus interface according to claim 1, it is characterized in that:
Described digital module, for the digital quantity input signal, signal enters CPLD through after the light-coupled isolation, and CPLD handles and gathers signal, sends bus adapter to by internal bus then; For the digital quantity output signal, after the CPLD chip bus acquisition internally dateout, drive on-the-spot executive component with regard to the may command output interface; CPLD shows present state by status lamp simultaneously.
5. have the configurable I/O module of multiple bus interface according to claim 1, it is characterized in that:
The analog module of described I/O module comprises: master chip P89LPC931, AD or DA chip, light-coupled isolation, input/output interface, status indicator lamp, power supply.
6. as having the configurable I/O module of multiple bus interface as described in the claim 5, it is characterized in that:
Described I/O module simulation amount output module wherein after the P89LPC931 bus acquisition internally dateout, sends to DA chip MAX525 by the SPI serial line interface, after the DA conversion, by output interface output analog quantity.
7. as having the configurable I/O module of multiple bus interface as described in the claim 5, it is characterized in that:
Described I/O module simulation amount input module, in the analog quantity input module, AD chip MAX1270 sends to P89LPC931 by the SPI serial line interface after the analog signals of gathering is converted to digital quantity signal, and P89LPC931 sends data to bus adapter by internal bus more then.
8. have the configurable I/O module of multiple bus interface according to claim 1, it is characterized in that:
After the program circuit of the digital module of described configurable I/O module also comprises the steps: to power on, at first digital quantity I/O module is carried out reset initialization, read the bus adapter addresses distributed by internal bus then, follow status bytes sent, upgrade digital quantity I/O data then, and by internal bus and bus adapter exchange digital quantity I/O data.
9. have the configurable I/O module of multiple bus interface according to claim 1, it is characterized in that:
After the program circuit of the analog module of described configurable I/O module also comprises the steps: to power on, at first analog quantity I/O module is carried out reset initialization, read the bus adapter addresses distributed by internal bus then, follow status bytes sent, upgrade analog quantity I/O data then, and by internal bus and bus adapter exchange analog quantity I/O data.
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| CN2006101187966A CN1964363B (en) | 2006-11-28 | 2006-11-28 | Configurable I/O module with multiple bus interface |
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| CN1964363B true CN1964363B (en) | 2011-12-14 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634833B (en) * | 2008-07-23 | 2011-12-21 | 沈阳中科博微自动化技术有限公司 | Open type configuration method and system for IO parameters of field device |
| CN102385351B (en) * | 2010-09-03 | 2013-09-18 | 上海电器科学研究院 | Configurable remote input/output (IO) controller host |
| CN103124242B (en) * | 2011-11-18 | 2015-08-19 | 北京旋极信息技术股份有限公司 | Method for transmitting signals |
| CN103760794A (en) * | 2013-12-31 | 2014-04-30 | 南京南瑞集团公司 | Automatic addressing data acquisition system and method thereof |
| CN105591652B (en) * | 2015-12-17 | 2019-04-23 | 滁州市博创电气有限公司 | 12 digital-to-analogue conversion plate cards are isolated in six channels entirely |
| US10268611B2 (en) * | 2016-02-17 | 2019-04-23 | Honeywell International Inc. | Input/output (I/O) binding with automatic international electromechanical commission (IEC) address generation in remote terminal unit (RTU) configuration |
| WO2020014854A1 (en) * | 2018-07-17 | 2020-01-23 | 大族激光科技产业集团股份有限公司 | Bus communication signal conversion method and apparatus, medium, and numerical control machine tool control device |
| CN111966024B (en) * | 2020-08-28 | 2022-11-18 | 杭叉集团股份有限公司 | Remote IO module and remote IO module configuration method |
| CN113485474A (en) * | 2021-07-20 | 2021-10-08 | 沈阳鑫博工业技术股份有限公司 | Multi-protocol temperature controller and control method for aluminum oxide suspension roasting furnace |
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