CN205317398U - Pressure transmitter based on CMC treater - Google Patents

Pressure transmitter based on CMC treater Download PDF

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Publication number
CN205317398U
CN205317398U CN201521066968.0U CN201521066968U CN205317398U CN 205317398 U CN205317398 U CN 205317398U CN 201521066968 U CN201521066968 U CN 201521066968U CN 205317398 U CN205317398 U CN 205317398U
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China
Prior art keywords
cmc
treater
interface
pressure unit
communication
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Active
Application number
CN201521066968.0U
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Chinese (zh)
Inventor
李乐
高剑琳
田泉林
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Shanghai Instrument And Meter For Automation Co Ltd
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Shanghai Instrument And Meter For Automation Co Ltd
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Priority to CN201521066968.0U priority Critical patent/CN205317398U/en
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Abstract

The utility model discloses a pressure transmitter based on CMC treater, wherein, include: a CMC treater, a data acquisition module, a data storage module, a display module, data acquisition module data storage module the display module with the CMC treater is connected, still include: a communication interface, an industrial ethernet interface, a digital analog conversion chip, communication interface the industrial ethernet interface the digital analog conversion chip with the CMC treater is connected. The utility model discloses utilizing the CMC chip to different communication mode's hardware compatibility, cooperating necessary peripheral circuit, make the pressure transmitter structure of CMC treater retrench, the operation is reliably stable. Simultaneously concentrate on RS485 communication and ethernet communication and analog signal output function on the integrated communication output interface socket, the convenient of on -the -spot installation and debugging has been guaranteed.

Description

Based on the pressure unit of CMC treater
Technical field
The utility model relates to a kind of transmitter, particularly relates to a kind of pressure unit based on CMC treater.
Background technology
Pressure unit is in order to control commercial run and the important original paper of pressure change in many industrial equipmentss. Pressure signal, for measuring the liquid level of liquid, gas or steam, density and pressure, is then transformed into 4~20mADC signal and exports by pressure unit. After field bus technique rises, industrial process control system develops to the field bus control system direction with two-way communication and intelligent instrument control gradually. The technical scheme that current intelligent pressure transmitter is generally taked is all that external CPU processor chip coordinates single DATA REASONING signalling methods. When there is the technical problem of chip-scale, to obtain technical support cumbersome, when scene needs the communication protocol changing pressure unit, can only take the mode again changing product type. Zhejiang Province Zhongkong Institute Co., Ltd needs independent research based on the controller chip of PLC principle according to market economy, i.e. CMC treater, may be used for the center-control calculation process of domestic situ industrial instrument, it is possible to simplify the framework of instrument, it is to increase the integrated level of instrument.
In order to better meet the market demand of pressure unit field measurement, and obtain good chip technology support, it is necessary to a can simultaneously compatible RS485 communication and industry ethernet communication, and possess the pressure unit of 4mA ~ 20mA analog signal output.
Practical novel content
The utility model discloses a kind of pressure unit based on CMC treater, in order to provide one to communicate and ethernet communication by compatible RS485 simultaneously.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
A kind of pressure unit based on CMC treater, wherein, comprising: a CMC treater, a data acquisition module, a data memory module, a display module, described data acquisition module, described data memory module, described display module are connected with described CMC treater; Also comprising: a communication interface, industry Ethernet interface, an analog-digital chip, described communication interface, described industry Ethernet interface, described analog-digital chip are connected with described CMC treater.
As above based on the pressure unit of CMC treater, wherein, described communication interface, described industry Ethernet interface, described analog-digital chip communication interface socket comprehensive with are connected.
As above based on the pressure unit of CMC treater, wherein, described data acquisition module comprises: pressure transmitter, temperature sensor.
As above based on the pressure unit of CMC treater, wherein, described pressure transmitter is connected with described CMC treater by an analog to digital converter.
As above based on the pressure unit of CMC treater, wherein, described communication interface is: RS485 interface chip, and described CMC treater has UART serial ports, and described CMC treater is connected with described RS485 interface chip by described UART serial ports.
As above based on the pressure unit of CMC treater, wherein, described CMC treater has SPI serial data interface, and described display module, described data memory module are connected with described SPI serial data interface.
As above based on the pressure unit of CMC treater, wherein, described CMC treater has IIC interface, and described data-carrier store is connected with described IIC interface.
As above based on the pressure unit of CMC treater, wherein, described analog-digital chip is loop power supply type 4mA ~ 20mA digital to analog converter.
In sum, owing to have employed technique scheme, the utility model utilizes CMC chip that the hardware of different communication mode is compatible, coordinates necessary peripheral circuit, the pressure transmitter configurations of CMC treater is simplified, reliable stable. RS485 communication concentrates on ethernet communication and analog signal output function described comprehensive communication export on interface socket simultaneously, ensure that in-site installation is debugged convenient.
Accompanying drawing explanation
Fig. 1 is the structure block diagram of the utility model based on the pressure unit of CMC treater.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is the structure block diagram of the utility model based on the pressure unit of CMC treater, refer to Fig. 1, a kind of pressure unit based on CMC treater 1, wherein, comprising: CMC treater 1, data acquisition module, data memory module 5, display module 6, data acquisition module, data memory module 5, display module 6 are connected with CMC treater 1; Also comprise: communication interface 8, industry Ethernet interface 7, analog-digital chip 9, communication interface 8, industry Ethernet interface 7, analog-digital chip 9 are connected with CMC treater 1.
Communication interface 8 of the present utility model, industry Ethernet interface 7, analog-digital chip 9 communication interface socket comprehensive with are connected 10.
Data acquisition module of the present utility model comprises: pressure transmitter 2, temperature sensor 4.
Pressure transmitter 2 of the present utility model is connected with CMC treater 1 by an analog to digital converter 3. Analog to digital converter 3 of the present utility model is 24 ADC(analog to digital conversion) chip, further, analog to digital converter 3 can adopt LTC2410 chip.
Communication interface 8 of the present utility model is: RS485 interface chip, and CMC treater 1 has UART serial ports, and CMC treater 1 is connected with RS485 interface chip by UART serial ports.
CMC treater 1 of the present utility model has SPI serial data interface, and display module 6, data memory module 5 are connected with SPI serial data interface.
Display module 6 of the present utility model can be liquid crystal display mode block 6, concrete, it is possible to adopt OKIMSM5265 liquid-crystal display module 6.
CMC treater 1 of the present utility model has IIC interface, and data-carrier store is connected with IIC interface. Data-carrier store of the present utility model can adopt ferroelectric FRAM memory, further, and data-carrier store can adopt storer MB85RC16.
Analog-digital chip 9 of the present utility model is loop power supply type 4mA ~ 20mA digital to analog converter, and further, digital to analog converter is AD5421.

Claims (8)

1. the pressure unit based on CMC treater, it is characterized in that, comprising: a CMC treater, a data acquisition module, a data memory module, a display module, described data acquisition module, described data memory module, described display module are connected with described CMC treater; Also comprising: a communication interface, industry Ethernet interface, an analog-digital chip, described communication interface, described industry Ethernet interface, described analog-digital chip are connected with described CMC treater.
2. the pressure unit based on CMC treater according to claim 1, it is characterised in that, described communication interface, described industry Ethernet interface, described analog-digital chip communication interface socket comprehensive with are connected.
3. the pressure unit based on CMC treater according to claim 1, it is characterised in that, described data acquisition module comprises: pressure transmitter, temperature sensor.
4. the pressure unit based on CMC treater according to claim 3, it is characterised in that, described pressure transmitter is connected with described CMC treater by an analog to digital converter.
5. the pressure unit based on CMC treater according to claim 1, it is characterized in that, described communication interface is: RS485 interface chip, and described CMC treater has UART serial ports, and described CMC treater is connected with described RS485 interface chip by described UART serial ports.
6. the pressure unit based on CMC treater according to claim 1, it is characterised in that, described CMC treater has SPI serial data interface, and described display module, described data memory module are connected with described SPI serial data interface.
7. the pressure unit based on CMC treater according to claim 1, it is characterised in that, described CMC treater has IIC interface, and described data-carrier store is connected with described IIC interface.
8. the pressure unit based on CMC treater according to claim 1, it is characterised in that, described analog-digital chip is loop power supply type 4mA ~ 20mA digital to analog converter.
CN201521066968.0U 2015-12-21 2015-12-21 Pressure transmitter based on CMC treater Active CN205317398U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521066968.0U CN205317398U (en) 2015-12-21 2015-12-21 Pressure transmitter based on CMC treater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521066968.0U CN205317398U (en) 2015-12-21 2015-12-21 Pressure transmitter based on CMC treater

Publications (1)

Publication Number Publication Date
CN205317398U true CN205317398U (en) 2016-06-15

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Family Applications (1)

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CN201521066968.0U Active CN205317398U (en) 2015-12-21 2015-12-21 Pressure transmitter based on CMC treater

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509955A (en) * 2015-12-21 2016-04-20 上海自动化仪表有限公司 Pressure transmitter based on CMC processor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509955A (en) * 2015-12-21 2016-04-20 上海自动化仪表有限公司 Pressure transmitter based on CMC processor

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