CN204028644U - A kind of field instrument communication module - Google Patents
A kind of field instrument communication module Download PDFInfo
- Publication number
- CN204028644U CN204028644U CN201320849848.2U CN201320849848U CN204028644U CN 204028644 U CN204028644 U CN 204028644U CN 201320849848 U CN201320849848 U CN 201320849848U CN 204028644 U CN204028644 U CN 204028644U
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- Prior art keywords
- controller
- communication module
- instrument
- field instrument
- signal
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- 238000004891 communication Methods 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
Classifications
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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 utility model discloses a kind of field instrument communication module, be integrated with PROFIBUS-PA agreement by protocol chip inside, controller receives the signal that also processing protocol chip transmits, and realizes the information storage of the signal that controller is sent by storer.This programme is realized the information transmission of field instrument communication module by PROFIBUS-PA agreement, realized information efficiently, accurately transmission, improved reliability and the extendability of system.In addition, this programme adopts PROFIBUS-PA bus, has increased the quantity of information of communicating by letter between controller and instrument, has also realized the remote maintenance of instrument simultaneously, has saved the cable that needs laying.
Description
Technical field
The utility model relates to instrument communication field, especially relates to a kind of field instrument communication module.
Background technology
At present, industry spot adopts the transmission of 4～20mA signal conventionally, and 4～20mA signal transmission technology is the industrial control system that adopts analog control mode.
And there is the problem such as poor anti jamming capability, maintenance cost height in the signal transmission technology of 4～20mA.
Therefore, present industrial field control module is needed badly and is solved this technical matters.
Utility model content
In view of this, the utility model provides a kind of field instrument communication module, has the problem of poor anti jamming capability, poor reliability to solve the transmission of field instrument communication module in prior art.Its concrete scheme is as follows:
A kind of field instrument communication module, is connected with instrument, and application PROFIBUS-PA agreement, comprising:
Inside is integrated with the protocol chip of PROFIBUS-PA agreement;
Be connected with described protocol chip and instrument respectively, receive and process the controller of the signal of described protocol chip transmission, described controller is specifically M16C type controller;
Be connected with described controller, the storer that the signal sending according to the controller receiving carries out information storage, described storer is specially EEPROM.
Further: be connected with described controller, the display screen that the signal sending according to the controller receiving carries out information demonstration.
Further, also comprise:
Be connected respectively with described protocol chip and controller, the filtering circuit that the signal that described protocol chip is transmitted carries out filtering.
Further, also comprise:
Be connected respectively with described controller and instrument, the signal that controller is sent to instrument carries out the optical coupling isolation circuit of isolation processing.
Further, also comprise:
The power module being connected with described controller.
Further, described display screen is: LCD display.
Further, described filtering circuit is: EMI PA filtering circuit.
Further, described protocol chip is: SPC4-2 chip.
Further, described storer is connected with controller, is specially:
Described storer is connected by I2C bus with controller.
Further, described controller is connected with instrument, is specially:
Described controller is connected by serial ports with instrument.
The beneficial effect that above-mentioned field instrument communication module brings is: in the utility model, be integrated with PROFIBUS-PA agreement by protocol chip inside, controller receives the signal that also processing protocol chip transmits, and realizes the information storage of the signal that controller is sent by storer.This programme is realized the information transmission of field instrument communication module by PROFIBUS-PA agreement, realized information efficiently, accurately transmission, improved reliability and the extendability of system.In addition, this programme adopts PROFIBUS-PA bus, has increased the quantity of information of communicating by letter between controller and instrument, has also realized the remote maintenance of instrument simultaneously, has saved the cable that needs laying.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the disclosed a kind of field instrument communication module of the utility model;
Fig. 2 is the structural representation of the disclosed a kind of field instrument communication module of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The disclosed a kind of field instrument communication module of the utility model, is connected with instrument, application PROFIBUS-PA agreement, and its structural representation as shown in Figure 1, comprising:
Protocol chip 11, controller 12, storer 13.
Protocol chip 11 inside are integrated with PROFIBUS-PA agreement, and protocol chip 11 carries out the command signal in PROFIBUS-PA bus after demodulation, to be sent to controller 12, the signal that controller 12 receives.
Wherein, protocol chip 11 is specifically as follows SPC4-2 chip.
Controller 12 is connected with protocol chip 11 and instrument respectively, and controller 12 receives the signal that protocol chip 11 transmits by PROFIBUS-PA agreement, and this signal is processed, and signal after treatment is sent to instrument or storer 13.
Wherein, controller 12 is connected with instrument by serial ports, and controller 12 is connected with storer 13 by I2C bus, and controller 12 is specifically as follows M16C type controller.
In the time that signal is sent to storer 13, storer 13 receives the signal that controller 12 sends, and carries out the storage of information according to this signal, after storing successfully, to controller 12 feedback store information.
The disclosed field instrument communication module of the present embodiment, is integrated with PROFIBUS-PA agreement by protocol chip inside, and controller receives the signal that also processing protocol chip transmits, and realizes the information storage of the signal that controller is sent by storer.This programme is realized the information transmission of field instrument communication module by PROFIBUS-PA agreement, realized information efficiently, accurately transmission, improved reliability and the extendability of system.In addition, this programme adopts PROFIBUS-PA bus, has increased the quantity of information of communicating by letter between controller and instrument, has also realized the remote maintenance of instrument simultaneously, has saved the cable that needs laying.
Preferably, the disclosed field instrument communication module of the present embodiment, can also comprise: display screen 14.
Display screen 14 is connected with controller 12, and controller 12 receives the signal that protocol chip 11 transmits by PROFIBUS-PA agreement, and this signal is processed, and signal after treatment is sent to instrument or storer 13 or display screen 14.
In the time that signal is sent to display screen 14, now, the order being sent by protocol chip 11 is the order of reading information, it is controller 12 sends order from reading instrument measured value to instrument, and the measured value of receiving instrument feedback, controller 12 carries out demodulation by this measured value receiving by protocol chip 11 again, and the information after demodulation is sent to display screen 14, and the measured value of display screen 14 after to this demodulation shows.
Preferably, in the disclosed field instrument communication module of the present embodiment, display screen 14 is specifically as follows LCD display.
The present embodiment discloses a kind of field instrument communication module, and its structural representation as shown in Figure 2, comprising:
Protocol chip 21, controller 22, storer 23, display screen 24, filtering circuit 25.
Except the structure identical with a upper embodiment, the present embodiment has also increased filtering circuit 25.
Wherein, filtering circuit is connected with protocol chip 21 and controller 22 respectively, is used for realizing signal that protocol chip 21 is transmitted and carries out filtering processing, and signal after treatment filtering is sent to controller 22.
Concrete, described filtering circuit 25 can be EMI PA filtering circuit, frequency signal access arrangement when its permission equipment is normally worked, and the undesired signal of high frequency is had to larger inhibition.
Wherein, described storer 23 can be specially EEPROM (Electrically Erasable Programmable Read-Only Memory, EEPROM (Electrically Erasable Programmable Read Only Memo)), and more specifically, storer 23 can be: AT24C64AN.
Preferably, the disclosed field instrument communication module of the present embodiment, can also comprise: optical coupling isolation circuit 26.
Wherein, optical coupling isolation circuit 26 is connected with controller 22 and instrument respectively, carries out isolation processing for realizing signal that controller 22 is sent to instrument, has avoided the interference between circuit.
Further, the disclosed field instrument communication module of the present embodiment, also comprises: power module.
Wherein, power module is connected with controller 22, for controller 22 provides 3.3V direct supply.
The disclosed field instrument communication module of the present embodiment, is integrated with PROFIBUS-PA agreement by protocol chip inside, the signal that controller receives and processing protocol chip transmits, and realize the information storage of the signal that controller is sent and show by storer.This programme is realized the information transmission of field instrument communication module by PROFIBUS-PA agreement, realized information efficiently, accurately transmission, improved reliability and the extendability of system.In addition, this programme adopts PROFIBUS-PA bus, has increased the quantity of information of communicating by letter between controller and instrument, has also realized the remote maintenance of instrument simultaneously, has saved the cable that needs laying.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a field instrument communication module, is connected with instrument, it is characterized in that, application PROFIBUS-PA agreement, comprising:
Inside is integrated with the protocol chip of PROFIBUS-PA agreement;
Be connected with described protocol chip and instrument respectively, receive and process the controller of the signal of described protocol chip transmission, described controller is specifically M16C type controller;
Be connected with described controller, the storer that the signal sending according to the controller receiving carries out information storage, described storer is specially EEPROM.
2. field instrument communication module according to claim 1, is characterized in that, also comprises: be connected with described controller, and the display screen that the signal sending according to the controller receiving carries out information demonstration.
3. field instrument communication module according to claim 1, is characterized in that, also comprises:
Be connected respectively with described protocol chip and controller, the filtering circuit that the signal that described protocol chip is transmitted carries out filtering.
4. field instrument communication module according to claim 1, is characterized in that, also comprises:
Be connected respectively with described controller and instrument, the signal that controller is sent to instrument carries out the optical coupling isolation circuit of isolation processing.
5. field instrument communication module according to claim 1, is characterized in that, also comprises:
The power module being connected with described controller.
6. field instrument communication module according to claim 2, is characterized in that, described display screen is: LCD display.
7. field instrument communication module according to claim 3, is characterized in that, described filtering circuit is: EMI PA filtering circuit.
8. field instrument communication module according to claim 1, is characterized in that, described protocol chip is: SPC4-2 chip.
9. field instrument communication module according to claim 1, is characterized in that, described storer is connected with controller, is specially:
Described storer and controller pass through I
2c bus is connected.
10. field instrument communication module according to claim 1, is characterized in that, described controller is connected with instrument, is specially:
Described controller is connected by serial ports with instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849848.2U CN204028644U (en) | 2013-12-20 | 2013-12-20 | A kind of field instrument communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849848.2U CN204028644U (en) | 2013-12-20 | 2013-12-20 | A kind of field instrument communication module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204028644U true CN204028644U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849848.2U Expired - Lifetime CN204028644U (en) | 2013-12-20 | 2013-12-20 | A kind of field instrument communication module |
Country Status (1)
| Country | Link |
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| CN (1) | CN204028644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616477A (en) * | 2015-01-06 | 2015-05-13 | 上海自动化仪表股份有限公司 | Profibus-PA technology-based multi-channel real-time temperature measurement method |
-
2013
- 2013-12-20 CN CN201320849848.2U patent/CN204028644U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616477A (en) * | 2015-01-06 | 2015-05-13 | 上海自动化仪表股份有限公司 | Profibus-PA technology-based multi-channel real-time temperature measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141217 |