CN111045406A - 16-channel SOE sequence generator - Google Patents
16-channel SOE sequence generator Download PDFInfo
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- CN111045406A CN111045406A CN201911302203.5A CN201911302203A CN111045406A CN 111045406 A CN111045406 A CN 111045406A CN 201911302203 A CN201911302203 A CN 201911302203A CN 111045406 A CN111045406 A CN 111045406A
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- channel
- soe
- sequencer
- output circuit
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/33—Director till display
- G05B2219/33273—DCS distributed, decentralised controlsystem, multiprocessor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- General Engineering & Computer Science (AREA)
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- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a 16-channel SOE (sequence of events) sequencer, which relates to the field of industrial control systems and comprises an XBUS (X bus) interface, a CPLD (complex programmable logic device) control module and a signal output circuit; the signal output circuit includes a 16-channel output. The 16-channel SOE sequence generator provided by the invention improves the automation level, the working efficiency and the testing precision of the test, and simultaneously reduces the labor cost of the test work.
Description
Technical Field
The invention relates to the field of industrial control systems, in particular to a 16-channel SOE sequence generator.
Background
In most important industrial fields such as power plants, paper making and the like at home and abroad, once a working host is stopped or stopped in a system joint debugging or production operation process, accident reasons need to be searched through a DCS platform, the process in the industrial fields is complex and high in real-time performance, general alarm records and historical trends cannot be used for making accurate accident analysis, Sequence Of Event (SOE) becomes a necessary function Of the DCS, and the resolution ratio generally requires 1 ms.
In order to test the correctness of the SOE function before shipment, the detection must be performed using the SOE generator. Foreign SOE testers are expensive and complex in function, and are suitable for single-card testing but not suitable for production batch testing. And only rely on the manual work to test the good or bad of each fastener one by one, need a large amount of manual works, time to accomplish work, the efficiency of testing is also not high.
Accordingly, those skilled in the art have been devoted to developing a new SOE sequencer that improves the level of automation, the efficiency of operation, and the accuracy of the test, while reducing the labor cost of the test operation.
Disclosure of Invention
In view of the above defects in the prior art, the technical problem to be solved by the present invention is to perform a test on an SOE function in batch, and to cooperate with an automatic test CPU device in an automatic test platform, so that a tester can perform an operation through a configuration interface of a human-machine interface to complete a test on an SOE module in a DCS system.
In order to achieve the purpose, the invention provides a 16-channel SOE sequencer which is characterized by comprising an XBUS interface, a CPLD control module and a signal output circuit; the signal output circuit includes a 16-channel output.
Further, the output quantities output by the 16 channels are all switching quantities.
Further, the output time interval of the 16-channel output is 1 ms.
Further, the device also comprises a status indicator light; the status indicator light reflects the status of the 16-channel output.
Further, the signal output circuit further comprises a latch; the latch saves the FPGA control signal.
Further, the signal output circuit further comprises an optical coupler; the optocoupler isolates a control signal from the 16-channel output.
Further, two 24V direct current power supplies are adopted.
Furthermore, the two 24V direct current power supplies are compared through two diodes, and one power supply with a large voltage value is selected to be converted into a positive and negative 12V, 5V or 3.3V direct current power supply.
Further, the diode is 1n 4005.
Further, the main control chip adopted by the CPLD control module is an LCMXO2-1200HC-6TG100 chip of Lattice corporation.
The 16-channel SOE sequence generator provided by the invention improves the automation level, the working efficiency and the testing precision of the test, and simultaneously reduces the labor cost of the test work.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a partial circuit diagram of the XBUS interface of a preferred embodiment of the present invention;
FIG. 2 is a signal output circuit diagram of a preferred embodiment of the present invention;
FIG. 3 is a block diagram of a preferred embodiment of the present invention.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
The invention provides a 16-channel SOE sequence generator which is used for SOE module function test. The SOE (sequence of events recording) is one of the essential functional blocks of the DCS.
As shown in FIG. 3, the 16-channel SOE sequencer provided by the invention comprises an XBUS interface, a CPLD control module and a signal output circuit.
The signal output circuit comprises 16 channels of output, the output quantity of the 16 channels of output is switching value, namely 16 switching value state signals can be output and controlled, and the requirements of single-card test and production batch test are well met.
Wherein, the switching value signal of each channel is output by a dry contact, and the accurate timing sequence output of 1ms can be realized.
Wherein, the signal output circuit also comprises a latch; the latch is arranged between the 16-path switching value output signal and the CPLD, and stores the FPGA control signal, so that the problem of asynchronism between a high-speed controller and a slow-speed peripheral is solved.
The signal output circuit further comprises an optical coupler; the optical coupler isolates the control signal from the 16-channel output by utilizing the characteristic of unidirectional transmission of the optical coupler.
In addition, the 16-channel SOE sequence generator further comprises a power supply module, wherein two paths of 24V direct currents are subjected to high-low comparison through 2 diodes, and the power supply with a large voltage value is converted into positive and negative 12V, 5V or 3.3V direct current power supplies to supply power for each module.
Wherein the diode is 1n 4005.
The 16-channel SOE sequencer further comprises a status indicator light; the status indicator light reflects the status of the 16-channel output.
The CPLD controls the sequential output of switching value intervals of 1ms, is an LCMXO2-1200HC-6TG100 chip of Lattice company, and can realize accurate timing through a crystal oscillator and a control logic gate.
The SOE sequence generator realizes communication with an upper computer through an XBUS interface. The upper computer sends data to the CPLD through differential signals XCLK _ P, XCLK _ N, XDAT _ P and XDAT _ N, as shown in FIG. 1. The control signal OUTA [1..16] is output after conversion by the CPLD control module, and then is isolated by optocouplers U6 and U7, and NPN triodes Q1 and Q2 are amplified in a cascade mode, so that DIOUTA [1..16] is output in sequence with the interval time of 1ms between switching value signal channels, as shown in figure 2. And finally, returning to the CPLD through the on-board signal return-correction switching value input channel to confirm the output state.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A16-channel SOE sequence generator is characterized by comprising an XBUS interface, a CPLD control module and a signal output circuit; the signal output circuit includes a 16-channel output.
2. The 16-channel SOE sequencer of claim 1 wherein said 16-channel outputs are all switched.
3. The 16-channel SOE sequencer of claim 1 wherein said 16-channel output has an output time interval of 1 ms.
4. The 16-channel SOE sequencer of claim 1 further comprising a status indicator light; the status indicator light reflects the status of the 16-channel output.
5. The 16-channel SOE sequencer of claim 1 wherein said signal output circuit further comprises a latch; the latch saves the FPGA control signal.
6. The 16-channel SOE sequencer of claim 1 wherein said signal output circuit further comprises an optocoupler; the optocoupler isolates a control signal from the 16-channel output.
7. The 16-channel SOE sequencer of claim 1 wherein a two-way 24V dc supply is used.
8. The 16-channel SOE sequencer according to claim 7, wherein said two 24V dc supplies are compared through two diodes, and one of the two high voltage supplies is selected to be converted to a positive or negative 12V, 5V or 3.3V dc supply.
9. The 16-channel SOE sequencer of claim 8 wherein said diode is 1n 4005.
10. The 16-channel SOE sequencer of claim 1, wherein the CPLD control module employs a master chip that is a lattic LCMXO2-1200HC-6TG100 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911302203.5A CN111045406A (en) | 2019-12-17 | 2019-12-17 | 16-channel SOE sequence generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911302203.5A CN111045406A (en) | 2019-12-17 | 2019-12-17 | 16-channel SOE sequence generator |
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| CN111045406A true CN111045406A (en) | 2020-04-21 |
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| CN201911302203.5A Pending CN111045406A (en) | 2019-12-17 | 2019-12-17 | 16-channel SOE sequence generator |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201237737Y (en) * | 2008-08-15 | 2009-05-13 | 陈世慧 | Sequence event logging performance test apparatus |
| CN102566460A (en) * | 2011-12-22 | 2012-07-11 | 重庆大学 | SOE (sequence of event) acquisition card and acquisition method thereof |
| US20130100181A1 (en) * | 2011-10-20 | 2013-04-25 | Wooyoung Choe | Digital hologram image reproducing device and synchronization control method thereof |
| CN109240157A (en) * | 2018-09-13 | 2019-01-18 | 华北电力科学研究院有限责任公司 | SOE signal generation apparatus and SOE signal output method |
| CN209542778U (en) * | 2018-11-26 | 2019-10-25 | 上海新华电子设备有限公司 | A kind of output switch parameter check card for IO automatically testing platform |
-
2019
- 2019-12-17 CN CN201911302203.5A patent/CN111045406A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201237737Y (en) * | 2008-08-15 | 2009-05-13 | 陈世慧 | Sequence event logging performance test apparatus |
| US20130100181A1 (en) * | 2011-10-20 | 2013-04-25 | Wooyoung Choe | Digital hologram image reproducing device and synchronization control method thereof |
| CN102566460A (en) * | 2011-12-22 | 2012-07-11 | 重庆大学 | SOE (sequence of event) acquisition card and acquisition method thereof |
| CN109240157A (en) * | 2018-09-13 | 2019-01-18 | 华北电力科学研究院有限责任公司 | SOE signal generation apparatus and SOE signal output method |
| CN209542778U (en) * | 2018-11-26 | 2019-10-25 | 上海新华电子设备有限公司 | A kind of output switch parameter check card for IO automatically testing platform |
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Application publication date: 20200421 |
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| RJ01 | Rejection of invention patent application after publication |