CN201535867U - Process automated site instrument communication module based on PROFIBUS-PA - Google Patents

Process automated site instrument communication module based on PROFIBUS-PA Download PDF

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Publication number
CN201535867U
CN201535867U CN2009201864180U CN200920186418U CN201535867U CN 201535867 U CN201535867 U CN 201535867U CN 2009201864180 U CN2009201864180 U CN 2009201864180U CN 200920186418 U CN200920186418 U CN 200920186418U CN 201535867 U CN201535867 U CN 201535867U
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CN
China
Prior art keywords
profibus
bus
instrument
communication module
module based
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Expired - Lifetime
Application number
CN2009201864180U
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Chinese (zh)
Inventor
陈锦荣
张从江
查俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Anhui Intelligent Technology Co., Ltd.
Original Assignee
ANHUI WNK ELECTRONIC ENGINEERING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN2009201864180U priority Critical patent/CN201535867U/en
Application granted granted Critical
Publication of CN201535867U publication Critical patent/CN201535867U/en
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Abstract

The utility model discloses a process automated site instrument communication module based on a PROFIBUS-PA. A bus electricity taking and voltage stabilizing module stabilizes the voltage of a PROFIBUS-PA bus at 3.3 V DC and supplies power energy to each component on the module; FBC0409 demodulates a command signal on the PROFIBUS-PA bus and sends the command signal to an AT91 type CPU; if the command signal is to read a measuring value of the instrument, the AT91 type CPU sends the command of reading the measuring value of the instrument to a measuring part of the instrument and receives the measuring value passed back from the measuring part of the instrument, and then the AT91 sends the measuring value received from the measuring part of the instrument and demodulated through the FBC0409 to the PROFIBUS-PA bus, and displays the received the measuring value through an LCD; and if the command signal is to write a parameter value, the AT91 writes parameters which are to be written and received from the bus into a 24 AA256 through an I2C bus and sends successful confirmation signals to the bus. A user can view and amend the address setting, the functional block selection, the liquid crystal display scaling position and the unit of the measuring value of the module through a button and the LCD.

Description

Process automation field instrument communication module based on PROFIBUS-PA
Technical field
The utility model relates to collection of a kind of industrial automation control data and transmission system, particularly a kind of process automation field instrument communication module based on PROFIBUS-PA.
Background technology
PROFIBUS-PA is a kind of equipment that the physical measurement signal is converted to standard electric signal output or can exports in the communications protocol mode, the user gathers information needed and cooperates microsystem or the use of other conventional instruments, must be with a transmitter peace or a common collection point that places, and the comprehensive laying of consideration power lead and data line, the installation cost or the operation maintenance cost of this engineering are higher.
The utility model content
The purpose of this utility model is that by a kind of process automation field instrument communication module based on PROFIBUS-PA is provided, it can be placed in anywhere and need not to lay power lead and data line, and low in energy consumption, anti-interference is high.
For solving the problems of the technologies described above, the utility model comprises based on the process automation field instrument communication module of PROFIBUS-PA: (pressure, temperature, thing position, flow etc.) the process measurement value digital signal after PROFIBUS-PA bus, FBC0409PROFIBUS-PA protocol conversion interface chip, AT91 series microprocessor, bus power taking Voltage stabilizing module, button and LCD demonstration, CY62146 static memory, 24AA256EEPROM, communication isolation, isolated from power, the processing.
Bus power taking Voltage stabilizing module carries out voltage stabilizing with the PROFIBUS-PA bus voltage and powers for each device on this module at 3.3V DC; FBC0409 links to each other with AT91 type CPU, with the modulation and demodulation of PROFIBUS-PA signal; Button links to each other with AT91 type CPU with the LCD display part, realizes the setting and the reality of parameter; The CY62146 static memory links to each other with AT91 type CPU, for the modular program operation provides internal memory; 24AA256EEPROM passes through I 2The C bus links to each other with AT91 type CPU, memory device address, instrument linear parameter etc.; The isolated from power part is isolated the back with the 3.3V DC DC voltage of this module and is partly powered to instrument measurement; The instrument measurement part links to each other with AT91 type CPU by serial ports.
Its principle of work is: bus power taking Voltage stabilizing module carries out voltage stabilizing with the PROFIBUS-PA bus voltage and powers for each device on this module at 3.3V DC; FBC0409 carries out demodulation with the command signal on the PROFIBUS-PA bus and delivers to AT91 type CPU, if command signal is for reading the instrument measurement value, then AT91 type CPU partly sends the measured value of reading order of instrument measurement value and the passback of receiving instrument measure portion to instrument measurement, AT91 will carry out demodulation by FBC0409 from the measured value that instrument measurement partly receives again and send on the PROFIBUS-PA bus then, will receive measured value simultaneously by the LCD liquid crystal display; If command signal is the write parameters value, then AT91 will pass through I from the parameter that will write that bus receives 2The C bus is written among the 24AA256 and to bus and sends a little successful confirmation signals.The user can by button and LCD liquid crystal to address setting, the functional block of this module select, parameters such as liquid crystal display scaling position and measured value unit are checked and revise.
Owing to adopted above technical scheme, the utlity model has following good effect:
The utility model all adopts modular design, the mutual co-ordination of each module; Especially adopt the mode of FBC0409+AT91 type CPU, and form the dissimilar total wire transmitters of PROFIBUS-PA as long as the software of module is revised instrument measurement modules such as can and comprising pressure, temperature, thing position, flow a little.
Description of drawings
Fig. 1 is the circuit block diagram of the preferred implementation of a kind of process automation field instrument communication module based on PROFIBUS-PA of the utility model.
Wherein: the 1-PROFIBUS-PA bus; 2-FBC0409PROFIBUS-PA protocol conversion interface chip; The 3-AT91 series microprocessor; 4-bus power taking Voltage stabilizing module; 5-button and LCD demonstration-; The 6-CY62146 static memory; 7-24AA256EEPROM; The 8-communication is isolated; The 9-isolated from power; (pressure, temperature, thing position, flow etc.) process measurement value digital signal after 10-handles.
Embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is illustrated: as shown in Figure 1, the utility model comprises based on the process automation field instrument communication module of PROFIBUS-PA: (pressure, temperature, thing position, flow etc.) the process measurement value digital signal 10. after PROFIBUS-PA bus 1, FBC0409PROFIBUS-PA protocol conversion interface chip 2, AT91 series microprocessor 3, bus power taking Voltage stabilizing module 4, button and LCD demonstration 5, CY62146 static memory 6,24AA256EEPROM7, communication isolation 8, isolated from power 9, the processing
With reference to Fig. 1, the utility model power taking bus Voltage stabilizing module 4 carries out voltage stabilizing with the voltage of PROFIBUS-PA bus 1 and gives each device power supply on this module at 3.3V DC; FBC0409PROFIBUS-PA protocol conversion interface chip 2 links to each other with AT91 type series microprocessor 3 (CPU), with the signal modulation and demodulation on the PROFIBUS-PA bus 1; Button shows that with LCD 5 parts link to each other with AT91 type series microprocessor 3 (CPU), realizes the setting and the reality of parameter; CY62146 static memory 6 links to each other with AT91 type series microprocessor 3 (CPU), for the modular program operation provides internal memory; The CY62146 static memory.
Below the preferred embodiment of utility model is specified, but the utility model is not for fear of described embodiment, those of ordinary skill in the art can also make all modification that is equal to and replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.

Claims (6)

1. process automation field instrument communication module based on PROFIBUS-PA, comprising:
One bus power taking Voltage stabilizing module carries out voltage stabilizing with the PROFIBUS-PA bus voltage and powers for each device on this module at 3.3VDC;
One isolated from power part is isolated the back with the 3.3V DC DC voltage of this module and is partly powered to instrument measurement;
One AT91 type series microprocessor, a FBC0409PROFIBUS-PA protocol conversion interface chip, a button and LCD demonstration, a CY62146 static memory and a 24AA256EEPROM.
2. the process automation field instrument communication module based on PROFIBUS-PA as claimed in claim 1 is characterized in that: FBC0409 PROFIBUS-PA protocol conversion interface chip is connected with AT91 type series microprocessor circuit.
3. the process automation field instrument communication module based on PROFIBUS-PA as claimed in claim 1 is characterized in that: button is connected with AT91 type series microprocessor circuit with the LCD display part.
4. the process automation field instrument communication module based on PROFIBUS-PA as claimed in claim 1 is characterized in that: the CY62146 static memory is connected with AT91 type series microprocessor circuit.
5. the process automation field instrument communication module based on PROFIBUS-PA as claimed in claim 1, it is characterized in that: 24AA256 EEPROM passes through I 2The C bus is connected with AT91 type series microprocessor circuit.
6. the process automation field instrument communication module based on PROFIBUS-PA as claimed in claim 1 is characterized in that: instrument measurement part by serial ports be connected with AT91 type series microprocessor circuit.
CN2009201864180U 2009-07-16 2009-07-16 Process automated site instrument communication module based on PROFIBUS-PA Expired - Lifetime CN201535867U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201864180U CN201535867U (en) 2009-07-16 2009-07-16 Process automated site instrument communication module based on PROFIBUS-PA

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201864180U CN201535867U (en) 2009-07-16 2009-07-16 Process automated site instrument communication module based on PROFIBUS-PA

Publications (1)

Publication Number Publication Date
CN201535867U true CN201535867U (en) 2010-07-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102957142A (en) * 2011-08-18 2013-03-06 安徽皖科电子工程有限公司 IEC61158-2 transmission technology based intelligent field bus distributor
CN104037721A (en) * 2014-06-17 2014-09-10 林荣坤 Air switch and air switch intelligent control method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102957142A (en) * 2011-08-18 2013-03-06 安徽皖科电子工程有限公司 IEC61158-2 transmission technology based intelligent field bus distributor
CN102957142B (en) * 2011-08-18 2016-03-16 安徽皖科电子工程有限公司 Based on the Fieldbus Intelligent distributor of IEC61158-2 transmission technology
CN104037721A (en) * 2014-06-17 2014-09-10 林荣坤 Air switch and air switch intelligent control method
CN104037721B (en) * 2014-06-17 2018-06-19 林荣坤 A kind of air switch and air switch intelligent control method

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20170726

Address after: 230088 B6-4 layer comprehensive office, No. 168, camphora Road, hi tech Zone, Anhui, Hefei

Patentee after: Hefei Anhui Intelligent Technology Co., Ltd.

Address before: 230088 light mechanical and electrical integration Garden No. 106, science Avenue five, hi tech Zone, Anhui, Hefei Province, F9A

Patentee before: Anhui Wnk Electronic Engineering Co., Ltd.

TR01 Transfer of patent right
CX01 Expiry of patent term

Granted publication date: 20100728

CX01 Expiry of patent term