CN205880653U - Monitoring redundant controller switches process simulation volume output state's device - Google Patents
Monitoring redundant controller switches process simulation volume output state's device Download PDFInfo
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- CN205880653U CN205880653U CN201620800775.1U CN201620800775U CN205880653U CN 205880653 U CN205880653 U CN 205880653U CN 201620800775 U CN201620800775 U CN 201620800775U CN 205880653 U CN205880653 U CN 205880653U
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- analog output
- output state
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- acquisition instrument
- data acquisition
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Abstract
The utility model discloses a monitoring redundant controller switches process simulation volume output state's device, each other be redundant thermal power plant operation DCS controllers including two sets, the two sets of redundant thermal power plant operation DCS controllers remain one of them throughout and overlap online running, the two sets of one set public analog output terminals of DCS controller and analog input terminal, the analog input terminal is connected with a signal generator, the analog output terminal is connected with a signal data acquisition instrument, signal data acquisition instrument real -time supervision signal generator outgoing letter number, and when two sets of DCS controllers are redundant when switching, signal data acquisition instrument monitoring switching process analog output state. Simple structure, through the utility model discloses a process simulation volume output state's monitoring is switched the redundancy.
Description
Technical field
This utility model relates to Industry Control, monitors redundant manipulator handoff procedure analog output shape particularly to one
The device of state, utilizes analog input terminal and lead-out terminal at DCS controller to install signal generator and receptor, it is achieved
Monitoring redundant manipulator handoff procedure analog output state.
Background technology
Along with economic development, industrial control technology obtains rapid development, and wherein scattered control system (DCS) is in industry mistake
Process control obtains the most universal, be the control system of the one such as collection control technology, computer technology, network communication technology.
It is widely used in the industries such as electric power, petrochemical industry, papermaking and building materials, becomes the core of Process Control System.The application of DCS significantly carries
The high safety of production process, economy, stability and reliability.
The core being responsible for data processing operation in DCS system is exactly controller, the technical grade computer that general employing is special
Installing operating system and configuration application software in system, read-write persistent memory, to realize various logic control.Controller leads to
Cross IO module (analog input/output, On-off signal/output etc.) and obtain the process data gathered, by controller
After configuration logic carries out computing, then by IO module, control instruction is delivered to on-the-spot actuator and completes the reality of control instruction
Execute.For the reliability of Guarantee control system, the controller of all DCS system has all carried out redundant configuration, it is ensured that redundancy running,
Under this mode, when a controller breaks down, spare controller can automatically engage operation immediately.
According to the control requirement in Industry Control, redundant manipulator is when switching, and on-the-spot actuator link is not
Allow that malfunction, tripping even slow-action occurs.Owing to the DCS system of various brands is restricted or equipment length week by manufacturing technology level
The factors such as under phase running status fault is sporadic, are easily caused in controller handoff procedure and occur that analog quantity and output switch parameter delay
Dynamic, even there will be malfunction or tripping.If there is above phenomenon, production and relevant device to industrial system exist relatively
Big security risk.
Summary of the invention
The purpose of this utility model is to propose a kind of device monitoring redundant manipulator handoff procedure analog output state,
Utilize analog input terminal and lead-out terminal at DCS controller that signal generator and receptor are installed, it is achieved monitoring redundancy
Controller handoff procedure analog output state.
To achieve these goals, the technical solution of the utility model is:
A kind of device monitoring redundant manipulator handoff procedure analog output state, the thermoelectricity being mutually redundant including two sets
Factory runs DCS controller, and Liang Tao redundancy thermal power plant runs DCS controller and remains the most a set of on-line operation, described two sets
The public a set of analog output terminal of DCS controller and analog input terminal, wherein, described analog input terminal connects to be had
One signal generator, described analog output terminal connects a signal data acquisition instrument, and signal data acquisition instrument is real-time
The signal that monitoring signal generator sends, when two set DCS controller redundancy switchings, signal data acquisition instrument monitoring handoff procedure
Analog output state.
Scheme is further: described connection has the analog input terminal of signal generator to be stand-by set of dies analog quantity input
Son, described connection has the analog output terminal of signal data acquisition instrument to be analog output spare terminal.
Scheme is further: described signal data acquisition instrument is by the measuring resistance accessed at described analog output terminal
Gather signal.
Scheme is further: described measuring resistance resistance is based on corresponding DCS equipment and opens analog output channel
Road resistance requirement is selected.
Scheme is further: the current signal scope that described signal generator provides is 4-20mA.
Scheme is further: the sampling rate of described signal data acquisition instrument is not less than 100MS/s.
The beneficial effects of the utility model are:
Achieve the monitoring to redundant manipulator handoff procedure analog output state by this utility model, utilize this dress
Put the output analog signals state in controller handoff procedure gathering DCS control system, by high-speed data acquisition
Data are analyzed by the graphics data of instrument record, it is possible to detection the controller off-air time in handoff procedure and
The state change of analog output instruction, further determines that the safety and reliability in industrial system applied by DCS controller,
Prevent commercial production fault and the device damage caused because of controller handoff procedure.
With embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Detailed description of the invention
A kind of device monitoring redundant manipulator handoff procedure analog output state, as it is shown in figure 1, include two sets each other
The thermal power plant of redundancy runs DCS controller, it may be assumed that the first thermal power plant runs DCS controller 1 and the second thermal power plant runs DCS and controls
Device 2；Liang Tao redundancy thermal power plant runs DCS controller and remains that the most a set of on-line operation, described two set DCS controllers connect
To an analog quantity binding post 3, analog quantity binding post has analog output terminal 302 and analog input terminal 301, its
In, described analog input terminal connects a signal generator 4, and described analog output terminal connects a signal number
According to Acquisition Instrument 5, the signal that signal generator sends monitored in real time by signal data acquisition instrument, when two set DCS controller redundancy switchings
Time, signal data acquisition instrument monitoring handoff procedure analog output state；It is to utilize analog signals generator to provide controller
Recognizable set current value (4-20mA), through mark in parallel in DCS controller controls Logical Configuration after setting rate limit
High-speed data acquisition instrument record data are delivered in the analog output channel of quasi-resistance；Wherein: described signal data acquisition instrument receives
The signal that signal generator sends is that the path set by redundant manipulator is realized.
In embodiment: in order to reduce the impact on existing line, described connection has the analog input end of signal generator
Son is stand-by set of dies analog quantity input terminal, and described connection has the analog output terminal of signal data acquisition instrument to be that analog output is standby
Use terminal.
In embodiment: described signal data acquisition instrument is adopted by the measuring resistance 6 accessed at described analog output terminal
Collection signal.Its described measuring resistance resistance is based on corresponding DCS equipment and the offresistance of analog output channel requires choosing
Fixed；Test selects 100 300 ohm.
In embodiment: the current signal scope that described signal generator provides is 4-20mA, namely utilizes analog quantity to believe
Number generator provides that controller is recognizable, meet and limit the current signal required, scope is at 4-20mA.Further, DCS control is utilized
Speed functional device in device, it is ensured that the analog signals of signal generator input to DCS system is to set speed change, the change of setting
Change rate requirement input analog amount signal and change 1% according to control system per scan period；Further, described signal data acquisition instrument
Sampling rate not less than 100MS/s.
Claims (6)
1. monitor a device for redundant manipulator handoff procedure analog output state, the thermal power plant being mutually redundant including two sets
Running DCS controller, Liang Tao redundancy thermal power plant runs DCS controller and remains the most a set of on-line operation, described two set DCS
The public a set of analog output terminal of controller and analog input terminal, it is characterised in that described analog input terminal is even
Being connected to a signal generator, described analog output terminal connects a signal data acquisition instrument, signal data acquisition instrument
The signal that monitoring signal generator sends in real time, when two set DCS controller redundancy switchings, the monitoring switching of signal data acquisition instrument
Process simulation amount output state.
The device of monitoring redundant manipulator handoff procedure analog output state the most according to claim 1, its feature exists
In, described connection has the analog input terminal of signal generator to be stand-by set of dies analog quantity input terminal, and described connection has signal number
It is analog output spare terminal according to the analog output terminal of Acquisition Instrument.
The device of monitoring redundant manipulator handoff procedure analog output state the most according to claim 1, its feature exists
In, described signal data acquisition instrument gathers signal by the measuring resistance accessed at described analog output terminal.
The device of monitoring redundant manipulator handoff procedure analog output state the most according to claim 3, its feature exists
In, described measuring resistance resistance is based on corresponding DCS equipment and requires to select to the offresistance of analog output channel.
The device of monitoring redundant manipulator handoff procedure analog output state the most according to claim 1, its feature exists
In, the current signal scope that described signal generator provides is 4-20mA.
The device of monitoring redundant manipulator handoff procedure analog output state the most according to claim 1, its feature exists
In, the sampling rate of described signal data acquisition instrument is not less than 100MS/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620800775.1U CN205880653U (en) | 2016-07-28 | 2016-07-28 | Monitoring redundant controller switches process simulation volume output state's device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620800775.1U CN205880653U (en) | 2016-07-28 | 2016-07-28 | Monitoring redundant controller switches process simulation volume output state's device |
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| Publication Number | Publication Date |
|---|---|
| CN205880653U true CN205880653U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620800775.1U Expired - Fee Related CN205880653U (en) | 2016-07-28 | 2016-07-28 | Monitoring redundant controller switches process simulation volume output state's device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992023A (en) * | 2017-11-29 | 2018-05-04 | 中核控制系统工程有限公司 | A kind of high precision analog exports self diagnosis redundancy switching circuit |
| CN108508878A (en) * | 2018-06-30 | 2018-09-07 | 中国华电集团科学技术研究总院有限公司 | A kind of validation checking system and method for power plant analog output channel |
| CN113867126A (en) * | 2021-09-30 | 2021-12-31 | 南京国电南自维美德自动化有限公司 | Method and system for testing synchronization performance of real-time control system with redundancy mechanism |
-
2016
- 2016-07-28 CN CN201620800775.1U patent/CN205880653U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992023A (en) * | 2017-11-29 | 2018-05-04 | 中核控制系统工程有限公司 | A kind of high precision analog exports self diagnosis redundancy switching circuit |
| CN108508878A (en) * | 2018-06-30 | 2018-09-07 | 中国华电集团科学技术研究总院有限公司 | A kind of validation checking system and method for power plant analog output channel |
| CN113867126A (en) * | 2021-09-30 | 2021-12-31 | 南京国电南自维美德自动化有限公司 | Method and system for testing synchronization performance of real-time control system with redundancy mechanism |
| CN113867126B (en) * | 2021-09-30 | 2023-10-03 | 南京国电南自维美德自动化有限公司 | Real-time control system synchronization performance test method and system with redundancy mechanism |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20180728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |