CN201383095Y - PLC redundancy rotation-speed monitoring device - Google Patents
PLC redundancy rotation-speed monitoring device Download PDFInfo
- Publication number
- CN201383095Y CN201383095Y CN200920032571U CN200920032571U CN201383095Y CN 201383095 Y CN201383095 Y CN 201383095Y CN 200920032571 U CN200920032571 U CN 200920032571U CN 200920032571 U CN200920032571 U CN 200920032571U CN 201383095 Y CN201383095 Y CN 201383095Y
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- CN
- China
- Prior art keywords
- plc
- power supply
- unit
- monitoring device
- speed monitoring
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- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a PLC redundancy rotation-speed monitoring device belonging to the technical field of PLC application. In order to solve the problems existing in the prior art that the machine cannot work normally and the operating efficiency is influenced when the PLC is out of service, the utility model adopts the technical scheme that the PLC redundancy rotation-speed monitoring device comprises a power supply component, an acquisition unit, a controller component and a display unit, wherein the acquisition unit is connected with the controller component, and the PLC redundancy rotation-speed monitoring device is characterized in that an output switching unit, the power supply component and the controller component are connected, the controller component is connected with the output switching unit and also connected with the display unit and the controller component comprises a main PLC chip and a spare PLC chip. Compared with the prior art, the utility model has the advantages of high efficiency and good security.
Description
Technical field
The utility model belongs to the PLC applied technical field, relates to the redundant rotational speed measuring device of a kind of PLC.
Background technology
At present, PLC rotational speed measuring device on the market generally comprises power supply, collecting unit, PLC chip and display unit, collecting unit feeds back to the PLC chip to the data that collect, the PLC chip is handled the information that collects, output to display unit then, make the data of seeing that the operator can be clear and definite, in time operate.
The problem that prior art exists is: when the rotational speed measuring device of single PLC breaks down at the PLC chip, and cisco unity malfunction, the problem that causes the accident easily.
The utility model content
The purpose of this utility model provides the redundant rotational speed measuring device of a kind of PLC, and when breaking down to solve PLC that prior art exists, machine can't be worked, and influences the problem of work efficiency.
In order to solve the problem that prior art exists, the technical solution adopted in the utility model is: the redundant rotational speed measuring device of a kind of PLC, comprise power supply module, collecting unit, controller assemblies and display unit, collecting unit connects with controller assemblies, it is characterized in that: the output switch unit, power supply module connects with Control Component, and Control Component is connected with the output switch unit, Control Component is connected with display unit, and described Control Component comprises main PLC chip and standby PLC chip.
Above-mentioned power supply module comprises primary power cource, standby power supply and power supply switch unit.
The utility model is with respect to prior art, and its advantage is as follows:
This product designs by optimal combination, and device is inner to be adopted double loop power supply power supply, two PLC principal and subordinate heat to be equipped with mode to work, and device can fault-tolerant operation, and device internal core hardware all adopts import industry control product, improves the generating unit speed monitoring reliability;
The inner two cover power supplys that adopt of device are powered simultaneously, and when the working power fault, standby power supply can switch fast, holding device in-line power reliable.Double loop power supply all adopts the stable state Switching Power Supply, but the equal steady operation of AC and DC, and change in voltage does not influence the measure and control device reliably working.
The inner two cover display units that adopt of device, touch-screen and LED show, when a kind of display mode has fault, can not influence the visuality of device, make the data of seeing that the operator can be clear and definite.
The inner two cover parameter set unit that adopt of device, touch-screen and panel button operation when a kind of mode of operation has fault, can not influence the setting and the change of device parameter.
Description of drawings
Fig. 1 is the utility model theory diagram.
1-master PLC chip, the standby PLC chip of 2-, 3-exports switch unit, 4-primary power cource, 5-standby power supply, 6-power supply switch unit, 7-display unit, 8-collecting unit.
Embodiment
Below in conjunction with accompanying drawing the utility model is done detailed description.
Referring to accompanying drawing, the redundant rotational speed measuring device of a kind of PLC, comprise power supply module, collecting unit 8, controller assemblies, output switch unit 3 and display unit 7, power supply module comprises primary power cource 4, standby power supply 5 and power supply switch unit 6, power supply module connects with Control Component, Control Component is connected with output switch unit 3, and Control Component is connected with display unit 7, and described Control Component comprises main PLC chip 1 and standby PLC chip 2.
During work: start power supply module, collecting unit 8 is the data input Control Component that collects, the output of output switch unit 3 main PLC chips 1 of control and standby PLC chip 2, be main control unit just often with main PLC chip 1, standby PLC chip 2 is gathered tach signal simultaneously, the standby PLC chip 2 of locking is all exported, when main PLC chip 1 is unusual, the output of output switch unit 3 locking master PLC chips 1, the output of opening standby PLC chip 2 realizes the conversion of no gap, avoid because main PLC chip 1 breaks down to cause and can't monitor the accident that is produced in real time, when primary power 4 broke down, standby increasing income 5 started working, and switched both work by power supply switch unit 6.
Claims (2)
1, the redundant rotational speed measuring device of a kind of PLC, comprise power supply module, collecting unit (8), controller assemblies and display unit (7), collecting unit (8) connects with controller assemblies, it is characterized in that: output switch unit (3), power supply module connects with Control Component, Control Component is connected with output switch unit (3), and Control Component is connected with display unit (7), and described Control Component comprises main PLC chip (1) and standby PLC chip (2).
2, the redundant rotational speed measuring device of a kind of PLC as claimed in claim 1, it is characterized in that: described power supply module comprises primary power cource (4), standby power supply (5) and power supply switch unit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920032571U CN201383095Y (en) | 2009-04-13 | 2009-04-13 | PLC redundancy rotation-speed monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920032571U CN201383095Y (en) | 2009-04-13 | 2009-04-13 | PLC redundancy rotation-speed monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383095Y true CN201383095Y (en) | 2010-01-13 |
Family
ID=41526566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920032571U Expired - Lifetime CN201383095Y (en) | 2009-04-13 | 2009-04-13 | PLC redundancy rotation-speed monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383095Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817778A (en) * | 2012-09-14 | 2012-12-12 | 国电联合动力技术有限公司 | Method and device for preventing PLC (programmable logic controller) control system of fan from crashing |
| CN103061976A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Alternating current variable pitch and collecting pitch control system of wind generating set |
| CN105278516A (en) * | 2014-06-24 | 2016-01-27 | 南京理工大学 | Double-redundancy switch value PLC control system reliable fault-tolerant controller realization method |
| CN112068638A (en) * | 2020-08-14 | 2020-12-11 | 深圳市晶联讯电子有限公司 | Assembled display module of integrated touch-sensitive screen expansion mouth |
-
2009
- 2009-04-13 CN CN200920032571U patent/CN201383095Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061976A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Alternating current variable pitch and collecting pitch control system of wind generating set |
| CN102817778A (en) * | 2012-09-14 | 2012-12-12 | 国电联合动力技术有限公司 | Method and device for preventing PLC (programmable logic controller) control system of fan from crashing |
| CN105278516A (en) * | 2014-06-24 | 2016-01-27 | 南京理工大学 | Double-redundancy switch value PLC control system reliable fault-tolerant controller realization method |
| CN105278516B (en) * | 2014-06-24 | 2017-12-12 | 南京理工大学 | A kind of implementation method of the reliable fault-tolerant controller of dual redundant switching value PLC control system |
| CN112068638A (en) * | 2020-08-14 | 2020-12-11 | 深圳市晶联讯电子有限公司 | Assembled display module of integrated touch-sensitive screen expansion mouth |
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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 |
Granted publication date: 20100113 |
|
| CX01 | Expiry of patent term |