CN102571517A - IO (Input Output) module based on CANOpen bus - Google Patents
IO (Input Output) module based on CANOpen bus Download PDFInfo
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- CN102571517A CN102571517A CN2010106137141A CN201010613714A CN102571517A CN 102571517 A CN102571517 A CN 102571517A CN 2010106137141 A CN2010106137141 A CN 2010106137141A CN 201010613714 A CN201010613714 A CN 201010613714A CN 102571517 A CN102571517 A CN 102571517A
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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]
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Abstract
The invention provides an IO (Input Output) module based on a CANOpen bus, which comprises a control unit, wherein the control unit is respectively connected with an AD (Analog/Digital) transformation module, a DA (Digital/Analog) transformation module and a power supply circuit. The IO module based on the CANOpen bus is characterized in that the control unit is also connected with a PWM (Pulse-Width Modulation) module, a pulse input module and a CAN bus module. The IO module based on the CANOpen bus has the advantages of high industrial protection level (IP67), capability of carrying out communication by using the CANOpen bus in a communication protocol, abundant resources of used ports, and large-current overvoltage and reverse connection protection.
Description
Technical field
The present invention relates to a kind of IO module, relate in particular to a kind of IO module based on the CANOpen bus.
Background technology
The CAN bus is called as the controller local area network fieldbus, and it is a kind of of field bus technique, is that a kind of framework is open, the new generation network communication technology of broadcast type.The CAN bus system adopts direct-connected mode, and the device level method for diagnosing faults not only is provided, and has improved the interchangeability of communication efficiency and equipment.The data communication of CAN bus has outstanding reliability, real-time and flexibility.
CANopen is based on the standard of the distributed industrial control technology of CAN bus.It unites the common exploitation of CiA by production firm and user, and becomes CENELEC EN 50325-4 standard in 2002.CANopen is a kind of upper-layer protocol based on CAN, is a kind of standard built-in network with flexible configuration function.CANopen has set up its standard (for example: mechanical engineering, drive system and assembly, Medical Devices, building automatic, vehicles or the like) in wide industrial communication.CANopen also is based on the sub-protocol of CAL (CAN application layer protocol), adopts OO thought design, has good modular nature and very high adaptability, goes for the number of applications field through the CANopen that expands.CANopen has not only defined application layer and communicator agreement; And, follow the CANopen equipment that these professional etiquettes develop and to realize the mutual operation between different company's product for programmable system, different components, interface, application sub-protocol have defined a large amount of professional etiquettes.
CANopen has lot of advantages, comprising: the flexible configuration function; Good modular nature and very high adaptability; Strong interference immunity, at a high speed, real-time etc.; Low, the easy transition of cost.Rely on these advantages CANopen to be widely used in a lot of fields.The application of CANopen has at present expanded to fields such as mechanical industry, textile machine, farm machinery, robot, Digit Control Machine Tool, medicine equipment, household electrical appliance and transducer rapidly from automobile, train, steamer.
But, do not have a kind of IO module in the market based on CANopen.The port resource that existing IO module often provides is generally on the low side and specific aim is not strong.Owing to there is above-mentioned defective, in order to tackle the increasing phenomenon of controlled function in mechanical industry, the way that manufacturer is general is exactly to solve through the mode that increases PLC.Simultaneously, because existing IO module is not based on CANopen's, therefore can not satisfy industrial needs growing today in the CAN bus.
Summary of the invention
The IO module that the purpose of this invention is to provide a kind of CANOpen of support bus.
In order to achieve the above object; Technical scheme of the present invention has provided a kind of IO module based on the CANOpen bus; Comprise control unit; Control unit connects AD modular converter, DA modular converter and power circuit respectively, it is characterized in that, control unit also connects PWM module, pulse input module and CAN bus module.
Further, said AD modular converter comprises the A/D convertor circuit and the first switching value input circuit.Said power circuit comprises the system power supply protection module; The system power supply protection module connects power supply reverse connecting protection module, power supply regulator circuit and PWM module respectively; Cross-over connection overvoltage detection module between system power supply protection module and power supply reverse connecting protection module; An output of power supply adjusting module directly connects described control unit, and another output connects described control unit through linear voltage regulator.Said PWM module comprises PWM output circuit, switching value output circuit, second switch amount input circuit and current feedback circuit.Said pulse input module comprises high-speed pulse input circuit and the 3rd switching value input circuit.Said CAN bus module comprises interconnective CAN bus protection module and CAN bus driver module, and CAN bus protection module connects described control unit.Said control unit is MCU.
Advantage of the present invention is: industrial protection grade high (IP67); Communications protocol can use CANOpen to carry out communication; Use the port aboundresources; Big electric current overvoltage, reverse connecting protection.
Description of drawings
Fig. 1 is the circuit theory diagrams of a kind of IO module based on the CANOpen bus provided by the invention.
Embodiment
Specify the present invention below in conjunction with embodiment.
Embodiment
As shown in Figure 1, the structural representation for a kind of IO module based on the CANOpen bus provided by the invention comprises control unit, and control unit adopts 16 MCU in the present embodiment.Control unit connects AD modular converter, DA modular converter, power circuit, PWM module, pulse input module and CAN bus module respectively.
Said power circuit comprises the system power supply protection module; The system power supply protection module connects power supply reverse connecting protection module, power supply regulator circuit and PWM module respectively; Cross-over connection overvoltage detection module between system power supply protection module and power supply reverse connecting protection module; An output of+5V power supply adjusting module directly connects described control unit, and another output connects described control unit through+2.5V linear voltage regulator.In this circuit, added a plurality of power protection measures, make that the industrial protection grade of entire I module is higher.
Said AD modular converter comprises the A/D convertor circuit and the first switching value input circuit 1.
Said PWM module comprises PWM output circuit, switching value output circuit, second switch amount input circuit 2 and current feedback circuit.
Said pulse input module comprises high-speed pulse input circuit and the 3rd switching value input electricity 3.
Foregoing circuit provides a plurality of ports for the IO module, has increased greatly than existing IO module port quantity.
Said CAN bus module comprises interconnective CAN bus protection module and CAN bus driver module, and CAN bus protection module connects described control unit.Above-mentioned CAN bus module makes this IO module carry out communication through the CANOpen agreement becomes possibility, makes it can use the trend with industrial development now.
More than show and described basic principle of the present invention and principal character and advantage thereof.The technological personage of the industry should understand; The present invention does not receive the restriction of above-mentioned implementing regulations; That describes in above-mentioned implementing regulations and the specification just is used to explain principle of the present invention; Under the prerequisite that does not break away from the principle of the invention and scope, the present invention also can have various changes and modifications, and these variations and improvement all belong in the scope of the invention of requirement protection.
The present invention requires protection range to define with appending claims and other equivalent.
Claims (7)
1. the IO module based on the CANOpen bus comprises control unit, and control unit connects AD modular converter, DA modular converter and power circuit respectively, it is characterized in that, control unit also connects PWM module, pulse input module and CAN bus module.
2. a kind of IO module based on the CANOpen bus as claimed in claim 1 is characterized in that, said AD modular converter comprises the A/D convertor circuit and the first switching value input circuit (1).
3. a kind of IO module as claimed in claim 1 based on the CANOpen bus; It is characterized in that; Said power circuit comprises the system power supply protection module; The system power supply protection module connects power supply reverse connecting protection module, power supply regulator circuit and PWM module respectively; Cross-over connection overvoltage detection module between system power supply protection module and power supply reverse connecting protection module, an output of power supply adjusting module directly connects described control unit, and another output connects described control unit through linear voltage regulator.
4. a kind of IO module based on the CANOpen bus as claimed in claim 1 is characterized in that said PWM module comprises PWM output circuit, switching value output circuit, second switch amount input circuit (2) and current feedback circuit.
5. a kind of IO module based on the CANOpen bus as claimed in claim 1 is characterized in that, said pulse input module comprises high-speed pulse input circuit and the 3rd switching value input circuit (3).
6. a kind of IO module based on the CANOpen bus as claimed in claim 1 is characterized in that said CAN bus module comprises interconnective CAN bus protection module and CAN bus driver module, and CAN bus protection module connects described control unit.
7. like each described a kind of IO module in the claim 1 to 6, it is characterized in that said control unit is MCU based on the CANOpen bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106137141A CN102571517A (en) | 2010-12-24 | 2010-12-24 | IO (Input Output) module based on CANOpen bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106137141A CN102571517A (en) | 2010-12-24 | 2010-12-24 | IO (Input Output) module based on CANOpen bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102571517A true CN102571517A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106137141A Pending CN102571517A (en) | 2010-12-24 | 2010-12-24 | IO (Input Output) module based on CANOpen bus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109992550A (en) * | 2019-03-29 | 2019-07-09 | 湖北三江航天万峰科技发展有限公司 | Polymorphic type information processing unit and method based on cpci bus |
| CN110543114A (en) * | 2019-07-30 | 2019-12-06 | 湖北九州云仓科技发展有限公司 | Universal control panel of automation equipment |
-
2010
- 2010-12-24 CN CN2010106137141A patent/CN102571517A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109992550A (en) * | 2019-03-29 | 2019-07-09 | 湖北三江航天万峰科技发展有限公司 | Polymorphic type information processing unit and method based on cpci bus |
| CN109992550B (en) * | 2019-03-29 | 2020-10-02 | 湖北三江航天万峰科技发展有限公司 | Multi-type information processing device and method based on CPCI bus |
| CN110543114A (en) * | 2019-07-30 | 2019-12-06 | 湖北九州云仓科技发展有限公司 | Universal control panel of automation equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Shanghai Hesmor Electronic Technology Co., Ltd. Document name: Notification of before Expiration of Request of Examination as to Substance |
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| DD01 | Delivery of document by public notice |
Addressee: Zhou Bing Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |