CN205745547U - Foundation fieldbus type electric device for valve controller - Google Patents
Foundation fieldbus type electric device for valve controller Download PDFInfo
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- CN205745547U CN205745547U CN201620518577.6U CN201620518577U CN205745547U CN 205745547 U CN205745547 U CN 205745547U CN 201620518577 U CN201620518577 U CN 201620518577U CN 205745547 U CN205745547 U CN 205745547U
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- foundation fieldbus
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Abstract
This utility model provides a kind of foundation fieldbus type electric device for valve controller, including microcontroller, power conversion unit, power supply handover management element, the Phase sequence detection unit being connected with microcontroller, the valve location detector unit being connected with microcontroller, the switch panel being connected with microcontroller, for setting the different operating state of electric device for valve, under manual mode, it is allowed to operator uses the switch on switch panel carry out valve opening or close valve events；The moment monitoring means being connected with microcontroller；The display unit being connected with microcontroller；Foundation fieldbus H1 communication unit, is connected by the communication interface card of foundation fieldbus bus communication interface with upper strata FCS bus control system；The electric-motor drive unit being connected with microcontroller, and remote control receiver unit.This utility model realizes based on long-range real-time intelligent control and the status monitoring under foundation fieldbus specification, to electric device for valve.
Description
Technical field
The present invention relates to a kind of foundation fieldbus type fully digitalization electric device for valve controller, be particularly well-suited to
Electric device for valve, belongs to flow liquid process automatic field.
Background technology
The power driven equipment that electric device for valve uses as flow liquid process control field, owing to it uses alternating current asynchronous
Electric machines control technology, and remote signal automatic control technology, be widely used in the industries such as oil, chemical industry, power station, sewage disposal.
Present Domestic electric device for valve uses traditional analog control mode in a large number, i.e. with long-range 4 20mA electric current loops or
Person's 1-5V voltage signal is as remote control signal, and conventional DCS (Distributed Control System) control system is by exporting 4 20mA electricity
Stream ring controls the action of electric operator, and the valve opening physical location that Real-time Collection is connected with electric device for valve is defeated
Go out, realize the control to valve of the long-range Central Control Room.Due to the physical characteristic of analogue signal itself, it is during remote transmission
There is loss, and field control cable is various, lays numerous and diverse, and system can not the weak point such as inline diagnosis.
The standard promulgated as international live bus foundation organization development, it is adaptable to cross the low speed sections of process automation
(Foundation Fieldbus H1, foundation fieldbus H1 part) based on ISO/OSI reference model development evolvement,
At present, H1 low speed bus develops into FF-H1 and FF-H2, transfer rate representative value be 31.25kbit/s, 1Mbit/s and
2.5Mbit/s;FF H1 is as the bottom-layer network of factory, and relatively general wide area network, for LAN, it is the low speed network segment.Its
It is made up of unified bus section or multibus section, it is also possible to by bridge mutual for the total segment of different transmission rates, different transmission medium
Join and constitute.FF-H1 is formed around communication system and two aspects of distributed network automatically system of industrial site
Its technical characteristic, technically combines communication technology and network automatic technology, and its major technique includes (1) communication technology
(2) functional device technology (3) device Description Technology (4) system integration technology (5) system test technology；Its main feature includes (1)
Supporting bus power (2) support essential safety (3) token bus access mechanism (4) content be widely applied layer.
Owing to FF-H1 uses for reference the functional device of DCS and Function Block Configuration technology, at the scene defined in field bus instrument or equipment
Multiple standards functional device (FB), every kind of functional device realizes specific application function；Including Resource Block (Resource Block), become
Send block (Transducer Block), PID block (PID Block), analog input block (AI), analog output
Block (AO), digital quantity input block (DI), digital output block (DO) etc..
It addition, FF-H1 is in order to support that the functional device of standard operates, the equipment that have employed describes (DD) technology, realizes bus
Instrument or the interoperability of equipment, share the functional device in different manufacturers bus apparatus.In order to carry out equipment description, FF-H1
Define corresponding DDL (Device Description Language, DDL), use equipment to describe compiling
Device, the source program that the equipment that DDL is write describes is converted into computer-readable file destination.Bus control system formally relies on
These readable file destinations understand the data sense of the bus apparatus of different manufacturer.
Along with greatly developing of modern digital bus technology and microcontroller technology, now, field bus technique is abroad
Ripe utilization is implemented in a large number.By field digital bussing technique and microcontroller technology are introduced traditional measuring instrument instrument
Table, can make traditional measuring instrument instrument have numerical calculation and a digital communicating ability, use Shielded Twisted Pair as bus,
Will be distributed over the on-the-spot multiple stage instrument of device and access bus network, according to the open communication specification standard promulgated, it is achieved remotely count
Data transmission and information between calculation machine and field instrument exchange, and form the automatic control system that various adaptation is actually needed.
Summary of the invention
It is an object of the invention to utilize international cutting edge technology, introduce foundation fieldbus and control technology
(Foundation Fieldbus H1), develops a kind of foundation fieldbus type electric device for valve controller, overcomes biography
System analog information is not easy to transmission, and signal cable is various, transmitting procedure analogue signal attenuation loss, and is not easy to multimode ginseng
Number signal feedback monitoring, is not easy to the weak points such as malfunction elimination and maintenance, uses single pair of cable, replaces simulation with digital signal
Signal, it is not necessary to extra analog/digital, digital-to-analog converting member, all of parameter information is passed by this single pair of cable
Defeated, finally realize the long-range real-time intelligent control to electric device for valve and status monitoring.The technical solution used in the present invention
It is:
A kind of foundation fieldbus type electric device for valve controller, including microcontroller, also includes:
Power conversion unit, use in conversion output valve Valve Actuator Controller that external communication powered each directly
Stream power supply；
Power supply handover management element, powers the handover management powered with internal backup battery for external communication；
The Phase sequence detection unit being connected with microcontroller, for carrying out capture inspection to the phase order of 3-phase AC of outside input
Survey；
The valve location detector unit being connected with microcontroller, for real time record and tracking valve physical location, by valve
Door position signal i.e. valve position signal passes to micro controller unit；
The switch panel being connected with microcontroller, is arranged above with at least one switch, for setting electric device for valve
Different operating state, under manual mode, it is allowed to operator uses the switch on switch panel carry out valve opening or close valve events；
The moment monitoring means being connected with microcontroller, for being converted to linear measurable electricity by the torque amount that valve loads
Pressure signal is supplied to microcontroller, it is achieved the monitoring to loading moment of the electric device for valve running；
The display unit being connected with microcontroller, the display at finishing man-machine interaction interface with check；
Foundation fieldbus H1 communication unit, by foundation fieldbus bus communication interface and upper strata FCS bus
The communication interface card of control system is connected, for receiving valve opening, pass valve, the halt instruction that upper strata FCS bus control system sends,
Simultaneously by the current valve position signal of electric device for valve, on loading moment signal, and the state parameter information in running
Pass to FCS bus control system；
The electric-motor drive unit being connected with microcontroller, microcontroller to electric-motor drive unit output motor control signal,
Drive positive/negative rotation of motor to make, it is achieved the control to electric device for valve, valve is driven into appointment position；
The remote control receiver unit being connected with microcontroller, for receiving the instruction sent from remote controller, completes relevant ginseng
The setting of number.
Further,
Microcontroller be set with valve evolution to/close direction force moment protection value, if the torque amount monitored is more than
Microcontroller set evolution to/close direction force moment protection value, microcontroller output motor halt instruction immediately.
Further,
MODBUS-RTU communication protocol is followed according to setting between microcontroller and foundation fieldbus H1 communication unit
Time interval (such as 250ms) carries out the transmitted in both directions of data, and valve position signal parameter, loading moment signal are joined by microcontroller
Count, and multiple particular state parameter carries out packing coding and process according to the data form of agreement, and be uploaded to fund in time
Can fieldbus H1 communication unit, foundation fieldbus H1 communication unit again by parameter information according to foundation fieldbus
H1 agreement encodes, and finally uploads to, in foundation fieldbus H1 bus network, be positioned at foundation fieldbus H1
The parameter that the FCS controller of bus network directly extracts from microcontroller from this foundation fieldbus H1 bus network is believed
Breath, thus complete the control of production process based on FCS bus control system；Meanwhile, microcontroller receives from the total line traffic control of FCS
The action command that system processed issues, by the MODBUS-RTU communication protocol from foundation fieldbus H1 communication unit
Decoding obtains, and after microcontroller decoding obtains the action command of reality, performs the control strategy of microcontroller, output motor
Rotating drives signal to electric-motor drive unit, drives motor positive and inverse action, valve is driven into FCS bus control system and refers to
Fixed position；
The multiple particular state parameters uploading FCS bus control system include:
The parameter that whether working properly electric device for valve controller is；
Valve wide open, closed positions parameter；
Current execution action is valve opening or the parameter closing valve events；
Working status parameter, including manual mode/remote status/remote state；
Alarm signal parameter, including motor clamping stagnation parameter, the overtemperature prote action parameter of motor temperature protection switch.
Further,
The serial ports of microcontroller and foundation fieldbus H1 communication unit carry out isolating and interconnecting by optocoupler.
It is an advantage of the current invention that:
1) based on foundation fieldbus international standard, it is achieved the fully digitalization of electric device for valve, intelligentized control method；
2) more status data is obtained, 3) it is easy to on-line monitoring, system diagnostics and maintenance；
3) communications cable is saved, and hardware cost, save mounting cost.
4) automaticity is high, it is simple to diagnosis and maintenance；Save later maintenance time and maintenance cost.
Accompanying drawing explanation
Fig. 1 is microcontroller mainboard structure schematic diagram of the present invention.
Fig. 2 is the piece electrical structural representation of the present invention.
Fig. 3 is the topological structure schematic diagram that the present invention accesses FF bus network.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the invention will be further described.
Foundation fieldbus type electric device for valve controller, as it is shown in figure 1, include microprocessor MSP430, and:
Power conversion unit, for external communication being powered (single-phase 220V/ three-phase 380V), conversion output direct current 3.3V electricity
Source, direct current 5V power supply, and direct current 24V power supply；It is respectively used to microprocessor unit and external signal collection and processing unit, electricity
Machine (three-phase/single-phase) driver element is powered；External signal collection and processing unit include valve location detector unit etc.；
Power supply handover management element, powers the handover management powered with internal backup battery for external communication, when external
When Alternating Current Power Supply is normal, power supply handover management element controls described power conversion unit and is output as microprocessor unit and outside letter
Number collection is powered with processing unit；When, under external power supply loss situation, by electric device for valve handwheel action, waking up up
Backup battery in power supply handover management element, power supply handover management element control backup battery export to microprocessor unit and
External signal collection is powered with processing unit；
The Phase sequence detection unit being connected with microcontroller, for carrying out capture inspection to the phase order of 3-phase AC of outside input
Survey；
The valve location detector unit being connected with microcontroller, for real time record and tracking valve physical location, by valve
Door position signal passes to micro controller unit；The physical location of valve location detector unit recordable valve opening and closing process, and
Valve opening location records is saved in microcontroller memorizer, so that it is guaranteed that valve open and closing course and
After power-off powers on again, valve physical location is not lost；Valve location detector unit gathers valve position by position sensor of valve
Confidence number；
The switch panel being connected with microcontroller, comprises a red knob switch, and a black rotary switch, is used for
Setting three different operating states (manually/remotely/remote control) of electric device for valve, under manual mode, this controller allows
Operator uses black rotary switch valve opening or closes valve events；Under remote state, this controller allows operator to use distant
Control device enters menu Debugging interface, carries out the setting of parameter, such as, to closing limit point and opening the setting of limit point, split direction
Force moment protection value sets, to closing yawning moment protection value setting etc.；Under remote status, this controller accepts long-range FCS and controls
The action command of the band foundation fieldbus H1 agreement that system sends, be automatically performed valve is driven between 0-100% right
The position answered；
The moment monitoring means being connected with microcontroller, for being converted to linear measurable electricity by the torque amount that valve loads
Pressure signal is supplied to microcontroller, it is achieved the monitoring to loading moment of the electric device for valve running, if the moment monitored
Amount more than this microcontroller set evolution to/close direction force moment protection value, this microcontroller will export electricity immediately
Machine halt instruction, stops the operating of motor, and in liquid crystal display alert, thus realize the protection to valve；
The motor temperature signal that gathered by other related sensor, backup battery voltage signal, and motor temperature protection switch
The duty switching signal (manually/remotely/remote control) transmitted in actuating signal, and switch panel is all sent to microcontroller
Device；
Foundation fieldbus H1 communication unit, existing with upper strata FCS(by foundation fieldbus bus communication interface
Field bus control system Fieldbus Control System) bus control system communication interface card be connected, for receive
Valve opening that layer FCS bus control system sends, close valve, halt instruction, simultaneously by the current valve position signal of electric device for valve, negative
The state parameter information carried in torque signals, and running is uploaded to FCS bus control system；
The electric-motor drive unit being connected with microcontroller, microcontroller to electric-motor drive unit output motor control signal,
The positive/negative rotation of AC induction motor is driven to make, it is achieved the control to electric device for valve, valve is driven into specific bit the most at last
Put.
The liquid crystal display being connected with microcontroller, for display valve current location directly perceived, motor temperature parameter, power
Square parameter, remote signal value, warning message etc.；Microcontroller is connected with display unit, by display unit finishing man-machine interaction circle
The display in face with check, microprocessor complete various signals are processed by set control logic, generate corresponding electricity
Machine control signal and alarm signal；
The remote control receiver unit being connected with microcontroller, for receiving the instruction sent from remote controller, completes relevant ginseng
The setting of number；
Microcontroller passes through serial communication interface, is connected with foundation fieldbus H1 communication unit；It is responsible for specially processing
The foundation fieldbus H1 communication unit of foundation fieldbus H1 communication protocol, it leads to the serial ports of micro controller unit
Cross high speed photo coupling interconnection, thus carry out the serial transmitted in both directions of data signal；
Such as Fig. 2, shown in Fig. 3, during application, the present invention passes through foundation fieldbus H1 bus communication interface, with reference to on-the-spot
Bus design and the AG-181 principle implemented in IEC61158 specification, use AWG18 type armouring pair cable, compare "+,-" pole
Property, i.e. can be accessed by foundation fieldbus H1 bus network, with FF equipment 1, FF equipment 2, FF equipment 3, FF equipment 4 is constituted
One foundation fieldbus network segment, in the present invention, (foundation is existing as one of them FF equipment for electric device for valve controller
Field bus equipment)；Describe when FCS bus control system has loaded DD(equipment corresponding to this invention) after file, remotely in control
Indoor FCS bus control system be (completely compatible PlantWeb DeltaV, the HONEYWELL company such as EMERSON company
The international mainstream systems such as Experion PKS PROCESS KNOWLEDGE SYSTEM) get final product ONLINE RECOGNITION and access this equipment.
In long-range FCS bus control system, FCS bus engineer can recognize that the multiple functions in this invention online
Block, in the invention, defines a Resource Block (Resource Block), a pick-up block (Transducer altogether
Block), PID block (PID Block), several analog input block (AI), an analog output block
(AO), several digital quantity input blocks (DI), a digital quantity IOB (DO).Wherein, AO block is used for long-range continuous control valve
Door aperture；AI block is used for feeding back currently practical valve opening (i.e. valve position signal) and currently practical loading moment value size；DI block
For the encoded radio of the current multiple state parameters of feedback device, DO block is used for realizing discrete type and controls valve.
MODBUS-RTU communication protocol is followed according to setting between microcontroller and foundation fieldbus H1 communication unit
Time interval (such as 250ms) carries out the transmitted in both directions of data, and valve position signal parameter, loading moment signal are joined by microcontroller
Count, and multiple particular state parameter carries out packing coding and process according to the data form of agreement, and be uploaded to fund in time
Can fieldbus H1 communication unit, foundation fieldbus H1 communication unit again by parameter information according to foundation fieldbus
H1 agreement encodes, and finally uploads to, in foundation fieldbus H1 bus network, be positioned at foundation fieldbus H1
The parameter that the FCS controller of bus network directly extracts from microcontroller from this foundation fieldbus H1 bus network is believed
Breath, thus complete the control of production process based on FCS bus control system；Meanwhile, microcontroller receives from the total line traffic control of FCS
The action command that system processed issues, by the MODBUS-RTU communication protocol from foundation fieldbus H1 communication unit
Decoding obtains, and after microcontroller decoding obtains the action command of reality, performs the control strategy of microcontroller, output motor
Rotating drives signal to electric-motor drive unit, drives motor positive and inverse action, and finally, motor is by electric machine actuating mechanism machinery
Drive disk assembly thrust output, is driven into the position that FCS bus control system is specified by valve；
The multiple particular state parameters uploading FCS bus control system include:
The parameter that whether working properly electric device for valve controller is；
Valve wide open, closed positions parameter；
Current execution action is valve opening or the parameter closing valve events；
Working status parameter, including manual mode/remote status/remote state；
Alarm signal parameter, including motor clamping stagnation parameter, (torque amount monitored is more than opening that microcontroller sets
During the force moment protection value in direction/direction, pass, it is judged that for motor clamping stagnation), the overtemperature prote action parameter of motor temperature protection switch.
FCS bus control system finally realizes the long-range real-time intelligent control to electric device for valve and status monitoring.
Claims (2)
1. a foundation fieldbus type electric device for valve controller, including microcontroller, it is characterised in that also include:
Power conversion unit, each unidirectional current used in conversion output valve Valve Actuator Controller that external communication is powered
Source；
Power supply handover management element, powers the handover management powered with internal backup battery for external communication；
The Phase sequence detection unit being connected with microcontroller, for carrying out Acquisition Detection to the phase order of 3-phase AC of outside input；
The valve location detector unit being connected with microcontroller, for real time record and tracking valve physical location, by valve position
Confidence number is that valve position signal passes to micro controller unit；
The switch panel being connected with microcontroller, is arranged above with at least one switch, for setting the difference of electric device for valve
Duty, under manual mode, it is allowed to operator uses the switch on switch panel carry out valve opening or close valve events；
The moment monitoring means being connected with microcontroller, for being converted to linear measurable voltage letter by the torque amount that valve loads
Number it is supplied to microcontroller, it is achieved the monitoring to loading moment of the electric device for valve running；
The display unit being connected with microcontroller, the display at finishing man-machine interaction interface with check；
Foundation fieldbus H1 communication unit, by foundation fieldbus bus communication interface and upper strata FCS bus marco
The communication interface card of system is connected, for receiving valve opening, pass valve, the halt instruction that upper strata FCS bus control system sends, simultaneously
The current valve position signal of electric device for valve, loading moment signal, and the state parameter information in running are uploaded to
FCS bus control system；
The electric-motor drive unit being connected with microcontroller, microcontroller, to electric-motor drive unit output motor control signal, drives
The positive/negative rotation of motor is made, it is achieved the control to electric device for valve, and valve is driven into appointment position.
2. foundation fieldbus type electric device for valve controller as claimed in claim 1, it is characterised in that also include:
The remote control receiver unit being connected with microcontroller, for receiving the instruction sent from remote controller, completes relevant parameter
Set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518577.6U CN205745547U (en) | 2016-05-31 | 2016-05-31 | Foundation fieldbus type electric device for valve controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518577.6U CN205745547U (en) | 2016-05-31 | 2016-05-31 | Foundation fieldbus type electric device for valve controller |
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| CN205745547U true CN205745547U (en) | 2016-11-30 |
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| CN201620518577.6U Active CN205745547U (en) | 2016-05-31 | 2016-05-31 | Foundation fieldbus type electric device for valve controller |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840900A (en) * | 2016-05-31 | 2016-08-10 | 无锡莱谱尔科技有限公司 | Foundation Fieldbus type controller for electric valve actuator |
| CN111443640A (en) * | 2020-04-18 | 2020-07-24 | 烟台华晟电子科技有限公司 | Valve position controller based on network communication modularization |
| CN115219833A (en) * | 2022-08-03 | 2022-10-21 | 蚌埠日月仪器研究所有限公司 | Valve driving device test information acquisition system |
| CN115219833B (en) * | 2022-08-03 | 2024-04-16 | 蚌埠日月仪器研究所有限公司 | Experimental information acquisition system of valve drive device |
-
2016
- 2016-05-31 CN CN201620518577.6U patent/CN205745547U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840900A (en) * | 2016-05-31 | 2016-08-10 | 无锡莱谱尔科技有限公司 | Foundation Fieldbus type controller for electric valve actuator |
| CN111443640A (en) * | 2020-04-18 | 2020-07-24 | 烟台华晟电子科技有限公司 | Valve position controller based on network communication modularization |
| CN115219833A (en) * | 2022-08-03 | 2022-10-21 | 蚌埠日月仪器研究所有限公司 | Valve driving device test information acquisition system |
| CN115219833B (en) * | 2022-08-03 | 2024-04-16 | 蚌埠日月仪器研究所有限公司 | Experimental information acquisition system of valve drive device |
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