CN202093383U - Field bus control module of VPC3+C chip-based electric execution mechanism - Google Patents

Field bus control module of VPC3+C chip-based electric execution mechanism Download PDF

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Publication number
CN202093383U
CN202093383U CN2011201786333U CN201120178633U CN202093383U CN 202093383 U CN202093383 U CN 202093383U CN 2011201786333 U CN2011201786333 U CN 2011201786333U CN 201120178633 U CN201120178633 U CN 201120178633U CN 202093383 U CN202093383 U CN 202093383U
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China
Prior art keywords
microprocessor
chip
interface
vpc3
control module
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Expired - Fee Related
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CN2011201786333U
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Chinese (zh)
Inventor
宋喆
刘伟
张中远
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Tianjin Jinda Actuation Co Ltd
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Tianjin Jinda Actuation Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The utility model relates to a field bus control module of a VPC3+C chip-based electric execution mechanism. The field bus control module consists of a first microprocessor and a second microprocessor which are connected with each other in a two-way manner by a serial communication interface, the first microprocessor is connected with a key and a display module respectively by an I/O interface, the first microprocessor receives a position signal by an A/D interface, receives a warning signal by a photoelectric isolation circuit, and outputs a motor control signal by an I/O interface, and the field bus control module is mainly and technically characterized in that the second microprocessor is connected with an RS485 interface circuit by a VPC3+C bus interface chip. By adopting a double-microprocessor structure, the field bus control module realizes digital control based on PROFIBUS-DP (PROcess Field BUS-Decentralized Periphery) field bus through the VPC3+C bus interface chip, and the stability and reliability of the control module are improved, and the high precision, compactness and integration effects of the control module can be realized.

Description

Fieldbus Control module based on the electric operator of VPC3+C chip
Technical field
The utility model belongs to industrial instrumentation instrument field, especially a kind of Fieldbus Control module of the electric operator based on the VPC3+C chip.
Background technology
Electric operator is the terminal actuating equipment in the industrial process control system, it mainly acts on is that control signal with control system is sent converts corresponding action to, reach the position of closure member in the by-pass valve control or the purpose of other governor motion positions, be widely used in industries such as electric power, metallurgy, petrochemical industry, heat supply, cement, building materials, light textile, food.Industrial process control system is mainly based on collecting and distributing control system at present, electric operator generally adopts 4~20mA DC simulation signal as control signal, yet adopts the industrial control system of analog control mode to have problems such as poor anti jamming capability, poor reliability.Along with development based on field bus technique, PROFIBUS-DP agreement (PROcess FIeld BUS-Decentralized Perphery, fieldbus-DP agreement) be used in the industrial process control system more and more, therefore, need urgently a kind of field bus technique to be applied in the control system for electric actuating mechanism, realized totally digitilized Fieldbus Control product.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a kind of antijamming capability is strong, reliability is high and can realize the Fieldbus Control module based on the electric operator of VPC3+C chip of full-digital control.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of Fieldbus Control module of the electric operator based on the VPC3+C chip, comprise the first microprocessor and second microprocessor, first microprocessor is connected by serial communication interface is two-way with second microprocessor, first microprocessor is connected with button and display module respectively by the I/O interface, first microprocessor is by A/D interface receiving position signal, receive alerting signal by photoelectric isolating circuit, by I/O interface output motor control signal, second microprocessor is connected by VPC3+C Bus Interface Chip and RS485 interface circuit.
And described RS485 interface circuit adopts ADM2486 as interface chip.
And described first microprocessor also connects an infrared receiving circuit by the I/O interface.
And described infrared receiving circuit has adopted the SC9149A decoding chip.
And described alerting signal comprises spacing alarm signal, moment alerting signal and the heat alarm of topworks.
And described display module is the digital display tube of LED.
And described first microprocessor is the ATMEGA88V chip, and described second microprocessor is the ATMEGA162 chip, and described photoelectric isolating circuit has adopted the SFH6156-3 chip.
Advantage of the present utility model and good effect are:
1, this control module adopts the dual micro processor structure, and realize accurate PROFIBUS-DP Digital Signals function by the VPC3+C Bus Interface Chip, transmitting data information bearing capacity and diversity have been increased, thoroughly solve loss and interference in the analog signal transmission, improved antijamming capability.
2, this control module adopts the dual micro processor structure, and two microprocessors are carried out different tasks respectively, and the intercommunication of two microprocessors has improved the stability and the reliability of control module effectively, has improved processing speed simultaneously.
3, this control module adopts two high integration, high performance microprocessor to make that circuit is simple, peripheral components is few, and it is integrated into each functional block in the module, realizes high precision, densification, the incorporate effect of control module.
4, the RS485 interface circuit of this control module adopts ADM2486 as interface chip, has simplified the RS485 interface circuit, has improved the stability of control module.
5, the utility model adopts the dual micro processor structure, and by the Digital Control of VPC3+C Bus Interface Chip realization based on the PROFIBUS-DP fieldbus, improve the stability and the reliability of control module, realized high precision, densification, the incorporate effect of control module.
Description of drawings
Fig. 1 is connection side's block diagram of the present utility model;
Fig. 2 is the circuit diagram of first microprocessor control section of the present utility model;
Fig. 3 is the circuit diagram of infrared receiving circuit part of the present utility model;
Fig. 4 is the circuit diagram of photoelectric isolating circuit part of the present utility model;
Fig. 5 is the circuit diagram of second microprocessor of the present utility model and VPC3+C Bus Interface Chip coupling part;
Fig. 6 is the circuit diagram of RS485 interface circuit part of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described:
A kind of Fieldbus Control module of the electric operator based on the VPC3+C chip, as shown in Figure 1, by first microprocessor, second microprocessor, photoelectric isolating circuit, button, infrared receiving circuit, display module, VPC3+C Bus Interface Chip and RS485 interface circuit constitute, in the present embodiment, first microprocessor has been selected the ATMEGA88V high-performance microprocessor of atmel corp for use, the ATMEGA88V microprocessor has integrated A/D converter, watchdog circuit, function such as Flash and EEPROM, second microprocessor has been selected the ATMEGA162 high-performance microprocessor for use, and it is big that ATMEGA162 has the ram in slice district, at a high speed, low in power consumption.First microprocessor is connected with button, infrared receiving circuit and display module respectively by the I/O interface, button operation or infrared receiving circuit can receive the order that the user sends, the user both can adopt the button operation mode, also can adopt the Infrared remote controller mode of operation, adopt two kinds of operation control modes to be more convenient for user's use; Display module is used for showing the running state information and the parameter setting information of topworks, and this display module is the digital display tube of LED.First microprocessor is connected with the position signalling of input by the A/D interface, the A/D interface of first microprocessor can be a digital signal by analog signal conversion with position signalling, first microprocessor is connected with the alerting signal of input by photoelectric isolating circuit, finishes the data acquisition to position signalling and alerting signal.After first microprocessor carries out analyzing and processing to the data of collection and from the information that the reception of second microprocessor comes, by the operation of I/O interface output motor control signal control executing mechanism.First microprocessor is connected by serial communication interface is two-way with second microprocessor, second microprocessor, VPC3+C Bus Interface Chip and the two-way connection of RS485 interface circuit, send first microprocessor to by serial communication interface after the control data Translation Processing of second microprocessor with the host computer of VPC3+C Bus Interface Chip reception, the feedback information with first microprocessor sends to level controlling system by the bus protocol chip simultaneously.
Below the each several part circuit is specified:
The circuit of first microprocessor control section, as shown in Figure 2, it mainly comprises first microprocessor ATMEGA88V chip, crystal oscillating circuit and the special-purpose chip that resets, all software programs and systematic parameter are stored in respectively among the Flash and EEPROM of ATMEGA88V chip, and crystal oscillating circuit provides the stable clock signal to the ATMEGA88V chip; Reset circuit is selected for use the chip that resets of IM809 special use to guarantee that ATMEGA88V is lower than in stabilized voltage supply under the situation of 4.2V to reset.ATMEGA88V is connected with the digital display tube of photoelectric isolating circuit, button, infrared receiving circuit, LED and the second microprocessor ATMEGA162 respectively, mainly finishes: the collection and the processing of alerting signal such as spacing alarm signal, moment alerting signal and heat alarm and position signalling; The reception of button operation and infrared remote-controlled signal and processing; The demonstration of topworks's running state information, parameter setting information; Receive the data of second microprocessor transmission and handle and result is transferred to second microprocessor, simultaneously topworks is controlled in conjunction with local information of gathering.
The circuit of infrared receiving circuit part, as shown in Figure 3, this circuit has adopted and has matched the infrared remote control that uses mutually with telepilot transmitting chip SC9148 and receive decoding chip SC9149A, its by infrared receiving terminal with the signal that receives through delivering to the reception pin of SC9149A chip behind the phase inverter, deliver to the I/O port of first microprocessor from its corresponding pin through behind phase inverter again after the parsing of process SC9149A chip, thereby finish the infrared remote-control operation function.
The circuit of photoelectric isolating circuit part, as shown in Figure 4, this circuit has adopted opto-coupler chip three SFH6156-3 that spacing alarm, the moment of topworks are reported to the police and switching value signal such as temperature alarming carries out photoelectricity and isolates, deliver to the I/O port of first microprocessor then, adopt photoelectric isolating circuit to avoid of the interference of above-mentioned alerting signal first microprocessor.
The circuit of second microprocessor and VPC3+C Bus Interface Chip coupling part, as shown in Figure 5, the VPC3+C Bus Interface Chip is selected the VPC3+C Bus Interface Chip of profichip company for use, second microprocessor ATMEGA162 control VPC3+C Bus Interface Chip, and finish exchanges data with first microprocessor ATMEGA88V by serial communication interface.Because the ram in slice of ATMEGA162 is inner integrated watchdog circuit and 1280 bytes, make the circuit of its control VPC3+C Bus Interface Chip simple, control flexibly, for ATMEGA162, the VPC3+C Bus Interface Chip is equivalent to an external RAM of its expansion, (DB0~DB7) (ABO~AB3) link to each other with the PC mouth with the PA mouth of ATMEGA162, the address realm of VPC3+C Bus Interface Chip is from 0x1000 to 0x1FFF with address wire by data/address multiplex bus.
The RS485 interface circuit as shown in Figure 6, is reliability level that improves system and the undesired signal of eliminating the external world, and the RS485 interface circuit adopts ADM2486 as interface chip.
Principle of work of the present utility model is: industrial process control system sends control command to the VPC3+C interface chip by the RS485 interface circuit by bus cable, second microprocessor sends first microprocessor to again by serial communication interface after with the reception data translation in the VPC3+C interface chip, first microprocessor is according to the data that receive and in conjunction with local information of gathering, through after the calculation process, control executing mechanism action again, simultaneously with the current location information that collects, fault alarm information and work state information are through microprocessor second microprocessor, the VPC3+C interface chip, RS485 interface circuit and bus cable pass back to industrial process control system, so far realize the Long-distance Control of upper system to topworks.
It is emphasized that; embodiment described in the utility model is illustrative; rather than it is determinate; therefore the utility model is not limited to the embodiment described in the embodiment; every by those skilled in the art according to other embodiments that the technical solution of the utility model draws, belong to the scope of the utility model protection equally.

Claims (7)

1. Fieldbus Control module based on the electric operator of VPC3+C chip, comprise the first microprocessor and second microprocessor, first microprocessor is connected by serial communication interface is two-way with second microprocessor, first microprocessor is connected with button and display module respectively by the I/O interface, first microprocessor is by A/D interface receiving position signal, receive alerting signal by photoelectric isolating circuit, by I/O interface output motor control signal, it is characterized in that: second microprocessor is connected by VPC3+C Bus Interface Chip and RS485 interface circuit.
2. the Fieldbus Control module of the electric operator based on the VPC3+C chip according to claim 1 is characterized in that: described RS485 interface circuit adopts ADM2486 as interface chip.
3. the Fieldbus Control module of the electric operator based on the VPC3+C chip according to claim 1 and 2, it is characterized in that: described first microprocessor also connects an infrared receiving circuit by the I/O interface.
4. the Fieldbus Control module of the electric operator based on the VPC3+C chip according to claim 3, it is characterized in that: described infrared receiving circuit has adopted the SC9149A decoding chip.
5. the Fieldbus Control module of the electric operator based on the VPC3+C chip according to claim 1 and 2, it is characterized in that: described alerting signal comprises spacing alarm signal, moment alerting signal and the heat alarm of topworks.
6. the Fieldbus Control module of the electric operator based on the VPC3+C chip according to claim 1 and 2 is characterized in that: described display module is the digital display tube of LED.
7. the Fieldbus Control module of the electric operator based on the VPC3+C chip according to claim 1 and 2, it is characterized in that: described first microprocessor is the ATMEGA88V chip, described second microprocessor is the ATMEGA162 chip, and described photoelectric isolating circuit has adopted the SFH6156-3 chip.
CN2011201786333U 2011-05-31 2011-05-31 Field bus control module of VPC3+C chip-based electric execution mechanism Expired - Fee Related CN202093383U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105302035A (en) * 2015-12-11 2016-02-03 天津市津达执行器有限公司 PROFIBUS bus type electric actuating mechanism controller with redundancy functions
CN105988411A (en) * 2016-04-28 2016-10-05 华电重工股份有限公司 DP intelligent module and PLC control system and method
CN106533267A (en) * 2016-11-04 2017-03-22 北京金自天正智能控制股份有限公司 Motor soft start DSP control panel integrating PROFIBUS protocol
CN106647445A (en) * 2016-10-28 2017-05-10 天津市津达执行器有限公司 Field bus control module based on MODBUS-RTU protocol

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105302035A (en) * 2015-12-11 2016-02-03 天津市津达执行器有限公司 PROFIBUS bus type electric actuating mechanism controller with redundancy functions
CN105988411A (en) * 2016-04-28 2016-10-05 华电重工股份有限公司 DP intelligent module and PLC control system and method
CN106647445A (en) * 2016-10-28 2017-05-10 天津市津达执行器有限公司 Field bus control module based on MODBUS-RTU protocol
CN106533267A (en) * 2016-11-04 2017-03-22 北京金自天正智能控制股份有限公司 Motor soft start DSP control panel integrating PROFIBUS protocol

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C17 Cessation of patent right
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Granted publication date: 20111228

Termination date: 20140531