CN103309245A - Modular and configurable control system of industrial control device - Google Patents
Modular and configurable control system of industrial control device Download PDFInfo
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- CN103309245A CN103309245A CN 201210059195 CN201210059195A CN103309245A CN 103309245 A CN103309245 A CN 103309245A CN 201210059195 CN201210059195 CN 201210059195 CN 201210059195 A CN201210059195 A CN 201210059195A CN 103309245 A CN103309245 A CN 103309245A
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Abstract
The invention discloses a modular and configurable control system of an industrial control device, and belongs to the field of an industrial automatic control. According to a system structure, a general part comprises a mainboard with a microprocessor as a center of the mainboard, a display panel used for displaying configuration units, and an expansion panel used for providing a plurality of input module and output module interfaces with consistent interface definition and unique bus address. Under a premise of conforming to the interface definition of the input or the output modules, the input and the output modules can be arbitrarily designed according to different external connection devices. A modular design of input and output units can not only support arbitrary and various input and output devices at the same time, but also facilitate the devices to be replaced arbitrarily. Besides, the control system also supports a modularization so that a drive and a configuration display menu of a hardware module can be dynamically loaded and changed according to the difference of the hardware module. A generality and a configurability of the system structure are improved and a maintainability of the system is strengthened by the modular and configurable control system.
Description
Technical field
The present invention relates to industrial automation control field, especially relate to modularization and the configurability of Industry Control instrument.
Background technology
At present, the Industry Control instrument is used for industrial automation control, as temperature control, flow control, pressure control etc.Common Industry Control instrument comprises a CPU (central processing unit) that is made of embedded microprocessor, is responsible for the signal input unit of signals collecting, is responsible for the output control unit of control output, and with the demonstration dispensing unit of user interactions.CPU (central processing unit) is responsible for scheduling and the processing of system, obtains input signal from signal input unit, and through the processing of setting program, controlled signal is controlled by output control unit then.Show that dispensing unit comprises button and display screen, the state of display device, and the state in the control procedure in real time allows the user to carry out operations such as parameter setting, process arrange simultaneously.Signal input unit provides fixing signal input interface, and the user needs as requested, with the signal wire access of right type.Equally, output control unit provides fixing control output interface, and the user need link to each other controller according to interface requirement with controlled plant.After hardware configuration and interface were determined, the software of control system depended on the design of hardware, operations such as executive process scheduling, signal processing.The shortcoming of this class Industry Control instrument is, when instrument is designed to carry out in a certain respect control, is difficult to or can not be used to otherwise control.Such as, be applicable to temperature controlled Industry Control instrument, support to insert the signal of thermopair and thermal resistance, the state demonstration in the control system is also all disposed with temperature control, thermopair with configuration menu, the thermal resistance configuration is relevant.When needs were applicable to flow control, this class Industry Control instrument can not be used, because its signal connected mode, system control mode design etc. are all only relevant with temperature control.That is to say that there is the problem that versatility is not high, configurability is not high in current Industry Control instrument.
Summary of the invention
In order to overcome the inconvenience on the system architecture, the present invention proposes a kind of modular configurable control system, and corresponding control method.On system architecture, CPU (central processing unit) centered by microprocessor is as mainboard, demonstration and dispensing unit are positioned on the display board, and expansion board links to each other with mainboard, and a plurality of interface definition unanimities, unique load module interface and the output module interface of bus address are provided simultaneously.Mainboard, display board and expansion board have constituted the common segment of system architecture.In inside, load module links to each other with mainboard by the load module interface on the expansion board, and externally, load module links to each other with signal input device.Under the prerequisite that meets the load module interface definition, load module can be according to the difference of signal input device and design arbitrarily.The modular design of input block not only can be supported multiple input equipment arbitrarily simultaneously, and makes things convenient for the random replacement of input equipment.Output module and load module are similar, can support multiple output device arbitrarily simultaneously.Control system provides the demonstration configuration menu relevant with type according to the type of load module or output module.The versatility design of system architecture, the modular design of interface type has realized the versatility of instrument, and has configurability, is convenient to upgrading and the maintenance of instrument.
The technical solution adopted for the present invention to solve the technical problems is:
On hardware configuration, expansion board links to each other with mainboard, for load module and output module provide interface.Microprocessor is by the I2C bus, carries out state and reads and control being connected to input and output module on the expansion board.All load module interfaces on the expansion board all have identical form, and all output module interfaces all have identical form.Each load module interface and each output module interface all have been assigned with unique I2C bus address.Microprocessor is as the main frame of I2C bus protocol, and the input and output interface is as the slave of I2C bus.By such form, control system just can use identical hardware and software interface to remove to visit each load module interface and each output module interface according to different addresses.When needs were connected on the expansion board, each load module or output module need meet the interface shape that expansion board provides, and I2C is provided bus interface, and are set at slave status.On each load module or the output module, an EEPROM (Electrically Erasable Programmable Read Only Memo) (EEPROM) chip is arranged, preserve module relevant type number and configuration information.Control system regularly detects each external interface, reads type number among the EEPROM by the I2C bus address, thereby has judged whether that module is access in or removes.When a module was connected on the interface that system provides, control system can read its effective type number by I2C bus and interface IP address.Otherwise when system can not obtain effective type number by I2C bus and interface IP address, representing did not have module to be connected on the interface of this address.The variation support of load module and output module also needs to exist in the control system diversified driving code module, can support effective module type numbering.When a new load module was access in, control system read its type number and configuration information from EEPROM, searched corresponding driving code module then, and will drive code module and carry out related with load module.When output module was access in, system read its type number from EEPROM, searched corresponding driving code module, and will drive code module and carry out related with output module.
On the control system structure, the driving code of load module and output module is too by modularization, and relevant with the module type numbering.Control system is managed all driving code modules and configuration menu module by array with card format.Drive for all load modules, the interface structure that system definition is unified makes all load modules drive and must satisfy given structure, obeys the unified management of system.Same, for all output modules, system also defines unified interface structure, makes all output modules drive and must satisfy given structure, obeys the unified management of system.When a load module was access in, control system successfully read its type number, and each load module of traversal drives in the array that the management load module drives then, searches the driving code module of supporting the current type numbering.When suitable driving code module is found, control system will drive code module and load module and carry out relatedly, and load module be joined in the current effective module list of system.With drive code word seemingly, the demonstration configuration menu of module is equally by modularization, and relevant with the module type numbering.After correct module drive was found, control system went to search the demonstration configuration menu of coupling according to the module type numbering.When the demonstration configuration menu of coupling is found, will show that configuration menu is associated with load module.Be separate between the load module, be independent of each other.Dissimilar load modules has dissimilar driving codes and shows configuration menu, between the configuration information of load module, driving code, the demonstration configuration menu, is associated by the type of module numbering.Output module and load module are similar.
Description of drawings
Fig. 1 is hardware structure diagram of the present invention;
Fig. 2 is that total interface connection situation of the present invention checks process flow diagram;
Fig. 3 is module drive codelookup process flow diagram of the present invention;
Fig. 4 is that block configuration menu of the present invention is searched process flow diagram.
Embodiment
Fig. 1 is the hardware configuration synoptic diagram.The CPU (central processing unit) of hardware configuration is a microprocessor, has at least two I2C bus interface, a connection that is used for load module, a connection that is used for output module.Simultaneously, microprocessor is supported connection and the driving of LCD display device, is used for display device state and configuration menu etc.On I2C bus 1, arranged the interface of 8 load modules altogether, addresses distributed is respectively 10,11,12,13,14,15,16,17. on I2C bus 2, also arranged the interface of 8 output modules simultaneously, addresses distributed is respectively 20,21,22,23,24,25,26,27. on all input equipments or output device, have an EEPROM, and be set to the slave in the I2C bus protocol, can be conducted interviews by the I2C bus by the control system.Load module can be connected on any one load module interface.Be example with the situation among Fig. 1, when load module one was connected to load module interface 2, the I2C bus protocol address of load module one was 11, and control system can be passed through I2C bus protocol reference address 11, thus the EEPROM of visit load module one.When load module two was connected to load module interface 4, the I2C bus protocol address of load module two was 13, and control system can be passed through I2C bus protocol reference address 13, thus the EEPROM of visit load module two.Load module three, output module one, output module two, output module three all are same analogues.
Fig. 2 is that total interface connection situation checks process flow diagram.In control system, manage all available load modules with chained list, each chained list node is represented an available load module.Equally, manage all available output modules with chained list, each chained list node is represented an available output module.Control system reads the type number among the EEPROM that inputs or outputs module, thereby judges whether have module to be connected on input interface and the output interface according to the address of I2C bus protocol and each module interface.If type number is effective, illustrate that an available module that inputs or outputs is detected.If type number is invalid, illustrating does not have the available module that inputs or outputs to be detected, and perhaps currently inputs or outputs module and can not be supported by the control system.When an available load module was detected, the variable of a load module correlation type of system definition was represented current available load module, and added in the chained list under the load module as the chained list node of load module.Before adding node to chained list, system numbers according to type of module, in the driving code library of system, remove to search the driving code module of coupling, in the configuration menu storehouse of system, go to search the configuration menu module of coupling, and the driving code module that will find, configuration menu module are associated with current load module.Simultaneously, system reads the configuration information of the EEPROM of load module by the I2C bus protocol, is saved in the variable of the current load module of expression.When an available output module was detected, the variable of an output module correlation type of system definition was represented current available output module, and adds in the output module chained list as the chained list node of output module.Before adding node to chained list, system numbers according to type of module, in the driving code library of system, remove to search the driving code module of coupling, in the configuration menu storehouse of system, go to search the configuration menu module of coupling, and the driving code module that will find, configuration menu module are associated with current output module.Simultaneously, system reads the configuration information of the EEPROM of output module by the I2C bus protocol, is saved in the variable of the current output module of expression.When total interface be examined finish after, all available load modules all are represented as the node of the chained list under the load module, all available output modules all are represented as the node of the chained list under the output module.Travel through each node in the affiliated chained list of load module successively, on display screen, show the access situation of load module, and show the state of each module; Each node in the chained list under the traversal output module shows the access situation of output module at display screen, and shows the state of each output module.
Fig. 3 is the driving codelookup process flow diagram of module.In control system inside, the driving code of every kind of module is packaged into unified format all by modularization, exists with card format, and control system manages all driving code modules by array.For inputing or outputing module, the driving code of each module is packaged into the form of structure, the information that the structure type that each representation module drives should comprise has: the descriptor that drives code, drive the device type number information that code is supported, point to the pointer of the processing function that drives code.Control system is managed the driving code module of all load modules and the driving code module of output module respectively by the form of array.When systems inspection is access in to effective load module, each member variable in the array under the driving code module of traversal load module, check to drive the type number whether code module supports load module, thereby obtain the corresponding code module that drives.Support current device type numbering if find certain to drive code module, then should drive code module and this load module and carry out relatedly that and end is searched.If when arriving last driving code module, still do not drive code module and support current device type numbering, illustrate and do not find suitable driving.The driving code module search procedure of output module is similar with load module.
Fig. 4 is that the modules configured menu is searched process flow diagram.On display interface, the status information of each module is shown, and the user can select individual module to carry out state to check and dispose.When needs disposed certain module, control system went to search the configuration menu of coupling according to the type of module numbering.Such as, if current device is the input equipment of gathering thermocouple signal, then configuration menu will show the configuration menu relevant with thermopair, such as the type that thermopair is set, the configuration information irrelevant with thermopair will can not be shown.If current device is the input equipment of gathering thermal resistance signal, then configuration menu will show the configuration menu relevant with thermal resistance, such as the thermal resistance type is set.When the configuration menu that does not have coupling is found, control system will show the configuration menu of acquiescence.In control system, code module is similar with driving, and all configuration menus are managed with the form of array.When effectively inputing or outputing module when being access in, control system is numbered according to type of module, searches the configuration menu module of coupling in the array under the configuration menu module.If the configuration menu module of coupling is found, then the configuration menu module is linked to each other with module.
Claims (7)
1. the control system of a modularization configurable industrial controller, it is characterized in that: system is divided into common segment and configurable part; Common segment as CPU (central processing unit), and comprises expansion board and display board with microprocessor, provides modularization and standardized interface to input block and output unit; Configurable part comprises input block, output unit and communication unit; Control system is corresponding with hardware configuration, supports the configurability of input block, output unit and communication unit by modular hardware driving and modular demonstration configuration menu.
2. the control system of a kind of modularization configurable industrial controller according to claim 1, it is characterized in that: the common segment of system and configurable part are separated, and common segment supports 1 to 16 access module to link to each other with CPU (central processing unit) by expansion board simultaneously.
3. the control system of a kind of modularization configurable industrial controller according to claim 1, it is characterized in that: the access module of external unit has constituted the configurable part of system, the interface of access module is by standardization, access module has nonvolatile memory, the type information that wherein includes access module, the access module of same kind has unified interface shape.
4. the control system of a kind of modularization configurable industrial controller according to claim 1, it is characterized in that: each slot on the expansion board all has been assigned with unique address.
5. the control system of a kind of modularization configurable industrial controller according to claim 1, it is characterized in that: use SPI or I2C bus protocol with master slave relation characteristic, CPU (central processing unit) is served as the host role of bus, and each access module all is the slave role and has been assigned with unique bus address.
6. the control system of a kind of modularization configurable industrial controller according to claim 1, it is characterized in that: control system can be according to the type information of access module, dynamic load is supported the driver module of access module type, the demonstration configuration menu that selection and module type are complementary, and allow by configuration menu access module to be configured.
7. the control system of a kind of modularization configurable industrial controller according to claim 1 is characterized in that: according to the type information of access module, control system shows the configuration display menu that is complementary with the access module type.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200512A (en) * | 2016-09-21 | 2016-12-07 | 青岛意想意创技术发展有限公司 | A kind of modularity control module and collocation method thereof, there is its control system |
| CN107203189A (en) * | 2016-11-30 | 2017-09-26 | 英业达科技有限公司 | A kind of monitoring system, monitoring method and server |
| CN107917513A (en) * | 2017-11-07 | 2018-04-17 | 珠海格力电器股份有限公司 | A kind of controller processing method, device and controller |
| CN107991932A (en) * | 2017-12-20 | 2018-05-04 | 天津大学 | Support digitlization automatic mapping without the restructural laboratory apparatus panel of wiring and method |
| CN111140516A (en) * | 2019-12-23 | 2020-05-12 | 浙江威奇电气有限公司 | Integrated control cabinet and control method |
| CN114326488A (en) * | 2021-12-01 | 2022-04-12 | 浙江源创智控技术有限公司 | Configuration allocation method and device for IO module channel linkage of building control system |
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2012
- 2012-03-08 CN CN 201210059195 patent/CN103309245A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200512A (en) * | 2016-09-21 | 2016-12-07 | 青岛意想意创技术发展有限公司 | A kind of modularity control module and collocation method thereof, there is its control system |
| CN107203189A (en) * | 2016-11-30 | 2017-09-26 | 英业达科技有限公司 | A kind of monitoring system, monitoring method and server |
| CN107917513A (en) * | 2017-11-07 | 2018-04-17 | 珠海格力电器股份有限公司 | A kind of controller processing method, device and controller |
| CN107991932A (en) * | 2017-12-20 | 2018-05-04 | 天津大学 | Support digitlization automatic mapping without the restructural laboratory apparatus panel of wiring and method |
| CN111140516A (en) * | 2019-12-23 | 2020-05-12 | 浙江威奇电气有限公司 | Integrated control cabinet and control method |
| CN114326488A (en) * | 2021-12-01 | 2022-04-12 | 浙江源创智控技术有限公司 | Configuration allocation method and device for IO module channel linkage of building control system |
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Application publication date: 20130918 |