CN201319136Y - Multichannel analogue collector - Google Patents
Multichannel analogue collector Download PDFInfo
- Publication number
- CN201319136Y CN201319136Y CNU2008202052049U CN200820205204U CN201319136Y CN 201319136 Y CN201319136 Y CN 201319136Y CN U2008202052049 U CNU2008202052049 U CN U2008202052049U CN 200820205204 U CN200820205204 U CN 200820205204U CN 201319136 Y CN201319136 Y CN 201319136Y
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- plc
- acquiring device
- analogue
- analog quantity
- control signal
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Abstract
The utility model relates to a multichannel analogue collector, which comprises a PLC analogue collecting interface. Two gates and a timer form a gate circuit which expands the PLC analogue collecting interface. The gate circuit automatically performs gate change once every 0.5 second, simultaneously, sends a control signal to the PLC analogue collecting interface, and ensures that the PLC judges the current gate state. The gate circuit has total sixteen paths of output, wherein four paths are connected to the PLC analogue collecting interface. The power supply voltage of the gate circuit is provided by a voltage stabilizing chip. The type of the gate is CD4052. The type of the timer is CD4060. Compared with other analogue I/O expansion techniques, the utility model has the characteristics of small volume, low cost, high reliability and low system fault rate.
Description
Technical field
The utility model relates to a kind of analog quantity acquiring device, particularly a kind of multiple-pass analog quantity acquiring device.
Background technology
In present automation instrument industry, usually the demand that the quantity that adopts the quantity that increases the analog quantity load module to satisfy the analog quantity input increases, but, costing an arm and a leg of analog quantity load module, when the quantity of analog quantity load module was many, its probability that breaks down also strengthened simultaneously.And the analog quantity load module too much will cause the volume of electric cabinet and cost of manufacture all to increase.Therefore, be necessary further improvement and perfect.
The utility model content
The purpose of this utility model aims to provide a kind of simple and reasonable, volume is little, cost of manufacture is low, system failure rate is low multiple-pass analog quantity acquiring device, to overcome weak point of the prior art.
A kind of multiple-pass analog quantity acquiring device by this purpose design comprises PLC analog acquisition interface, it is characterized in that constituting gating circuit by two gates and a timer, and this gating circuit expands PLC analog acquisition interface.
Described gating circuit carried out a strobe state in per 0.5 second automatically and changes, and exported first control signal and second control signal simultaneously and gave PLC analog acquisition interface, made PLC judge current strobe state.
After described two gates first output terminal separately joins, be electrically connected with the base stage of first triode, export first control signal, after two gates, second output terminal separately joins by its collector, be electrically connected with the base stage of second triode, export second control signal by its collector.
Described gating circuit has ten six tunnel outputs, and wherein, the four tunnel export to PLC analog acquisition interface.The supply voltage of gating circuit is provided by the voltage stabilizing chip.The model of gate is CD4052.The model of timer is CD4060.
The utility model is compared with adopting other analog quantitys I/O expansion technique, has the advantages that volume is little, cost is low, precision is high, reliability is high and system failure rate is low.
Description of drawings
Fig. 1 is the gating circuit figure among the utility model one embodiment.
Fig. 2 is ten six road output interface circuit figure in the utility model.
Fig. 3 is the power supply connection layout in the utility model.
Fig. 4 is circuit board figure of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1, this multiple-pass analog quantity acquiring device comprises PLC analog acquisition interface, constitutes gating circuit by two gate integrated circuit (IC) 1 and IC2 and a timer integrated circuit (IC) 4, and this gating circuit expands PLC analog acquisition interface.Gating circuit carried out a strobe state in per 0.5 second automatically and changes, and exported the first control signal A00 and the second control signal A11 simultaneously and gave PLC analog acquisition interface, made PLC judge current strobe state.After two gate integrated circuit (IC) 1 and IC2 first output terminals A 0 are separately joined, be electrically connected, export the first control signal A00 by its collector with the base stage of the first triode Q1; After two gate integrated circuit (IC) 1 and IC2 second output terminals A 1 are separately joined, be electrically connected, export the second control signal A11 by its collector with the base stage of the second triode Q2.Gating circuit has ten six tunnel outputs, and wherein, the four tunnel export to PLC analog acquisition interface.The model of gate is CD4052, and the model of timer is CD4060.
Referring to Fig. 2, describe with wherein the 4th interface circuit and the 8th interface circuit, capacitor C 8 is a filter capacitor with capacitor C 10, filters the influence of high frequency clutter, D7 and D9 are voltage stabilizing diodes.R16, R20 are divider resistance, choose the metalfilmresistor of 1 ‰ precisions, make this circuit reach minimum to the influence of systematic error.Interface circuit is mainly realized electric current, voltage transitions and protection.
Referring to Fig. 3, the supply voltage of gating circuit is provided by voltage stabilizing chip IC 3, and its model is 7812, and capacitor C 3 is a High frequency filter, and electrochemical capacitor E1 is a low frequency filtering and level and smooth.
Referring to Fig. 4, be PCB figure, it adopts dual platen, and two-sided shop copper is to reduce electromagnetic disturbance.
Claims (7)
1. a multiple-pass analog quantity acquiring device comprises PLC analog acquisition interface, it is characterized in that constituting gating circuit by two gates (IC1, IC2) and a timer (IC4), and this gating circuit expands PLC analog acquisition interface.
2. according to the described multiple-pass analog quantity acquiring device of claim 1, it is characterized in that described gating circuit carried out a strobe state in per 0.5 second automatically and changes, export first control signal (A00) and second control signal (A11) simultaneously and give PLC analog acquisition interface, make PLC judge current strobe state.
3. according to the described multiple-pass analog quantity acquiring device of claim 2, after it is characterized in that described two gates first output terminal (A0) separately joins, be electrically connected with the base stage of first triode (Q1), export first control signal by its collector, after two gates, second output terminal (A1) separately joins, be electrically connected with the base stage of second triode (Q2), export second control signal by its collector.
4. according to the described multiple-pass analog quantity acquiring device of claim 2, it is characterized in that described gating circuit has ten six tunnel outputs, wherein, the four tunnel export to PLC analog acquisition interface.
5. according to the described multiple-pass analog quantity acquiring device of claim 3, it is characterized in that the supply voltage of described gating circuit is provided by voltage stabilizing chip (IC3).
6. according to the described multiple-pass analog quantity acquiring device of claim 4, the model that it is characterized in that described gate is CD4052.
7. according to the described multiple-pass analog quantity acquiring device of claim 1, the model that it is characterized in that described timer is CD4060.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202052049U CN201319136Y (en) | 2008-12-09 | 2008-12-09 | Multichannel analogue collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202052049U CN201319136Y (en) | 2008-12-09 | 2008-12-09 | Multichannel analogue collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201319136Y true CN201319136Y (en) | 2009-09-30 |
Family
ID=41197898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202052049U Expired - Fee Related CN201319136Y (en) | 2008-12-09 | 2008-12-09 | Multichannel analogue collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201319136Y (en) |
-
2008
- 2008-12-09 CN CNU2008202052049U patent/CN201319136Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MEIDI GENERAL REFRIGERATION APPARATUS CO., LTD., C Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20101222 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528300 PENGLAI ROAD, BEIJIAO TOWN, SHUNDE DISTRICT, FOSHAN CITY, GUANGDONG PROVINCE TO: 400000 TUOZHAN ZONE, YUMACHI INDUSTRIAL PARK, CHAYUAN NEW ZONE, NAN AN DISTRICT, CHONGQING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101222 Address after: 400000 Development Zone of jade horse pond Industrial Park, new tea garden, Nan'an District, Chongqing Patentee after: Chongqing Midea General Refrigerating Equipment Co., Ltd. Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20131209 |