CN110377010A - A kind of arbitrarily extensible DCS system automatic test device and test method - Google Patents
A kind of arbitrarily extensible DCS system automatic test device and test method Download PDFInfo
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- CN110377010A CN110377010A CN201910743717.8A CN201910743717A CN110377010A CN 110377010 A CN110377010 A CN 110377010A CN 201910743717 A CN201910743717 A CN 201910743717A CN 110377010 A CN110377010 A CN 110377010A
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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
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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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
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
Abstract
The invention discloses a kind of arbitrarily extensible DCS system automatic test devices, including host computer, test output input cabinet；Master controller is divided into test I/O module transfer signal and test network transmission signal for that will test signal, and test is transferred to the I/O module of DCS system with I/O module transfer signal by the hardwire of I/O module, and test is transferred to the network communication module of DCS system with network transmission signal by the optical fiber that DCS docks network communication module, after testing signal by above-mentioned transmission, so that the master controller of DCS system passes through its I/O module respectively and network communication module obtains test signal, the master controller of DCS system modifies to its IO variable according to test signal；Master controller is also used to after DCS system makes feedback, when forming state parameter, is docked network communication module by the test output input I/O module of cabinet itself, DCS respectively and is obtained and is returned after the state parameter of DCS system to host computer.
Description
Technical field
The present invention relates to the fields nuclear power station security level DCS, and in particular to a kind of arbitrarily extensible DCS system automation survey
Trial assembly is set and its test method.
Background technique
Existing nuclear power plant DCS I &C equipment automatic test device mainly simulates live input signal, and acquisition subject is set
Standby output signal, and back production signal is compared with desired value, to verify whether tested device function meets the requirements.It is formed
It mainly include the hardware devices such as industrial personal computer, display, main controller module, power module, communication module, I/O module.When DCS system
When I O point quantity of uniting is more than the I O point number of test device, test device can then be unable to satisfy test request.Common method is to expand
Test device scale purchases new cabinet and I/O module.The method higher cost, increases wiring workload, and cannot and
When solve the problems, such as.
Summary of the invention
The purpose of the present invention is to provide a kind of arbitrarily extensible DCS system automatic test devices and its test side
Method；This method can cover the gearing test of all of the port and logic with lower cost.
The specific technical proposal of the invention is:
A kind of arbitrarily extensible DCS system automatic test device, including host computer, test output input cabinet；
Test output input cabinet includes that master controller and master controller establish the I/O module of data transmission link, DCS
Network communication module, host computer docking network communication module are docked, wherein host computer docking network communication module is built with host computer
Vertical network communication, DCS docking network communication module are used to establish network communication with the network communication module of DCS system；I/O module
It is connect for the I/O module with DCS system；
Host computer is used to obtain test case post analysis and obtains test signal and anticipatory data and pass through test signal
Position machine docking network communication module is distributed to master controller；
Master controller is divided into test I/O module transfer signal and test network transmission signal for that will test signal,
And test is transferred to the I/O module of DCS system with I/O module transfer signal by the hardwire of I/O module, and test is used
Network transmission signal is transferred to the network communication module of DCS system by the optical fiber that DCS docks network communication module, by above-mentioned
After transmission test signal, the master controller of DCS system is made to pass through its I/O module and network communication module acquisition test letter respectively
Number, the master controller of DCS system modifies to its IO variable according to test signal；
Master controller is also used to pass through test output input respectively after DCS system makes feedback, when forming state parameter
It is returned after the I/O module of cabinet itself, the state parameter of DCS docking network communication module acquisition DCS system to host computer；
Host computer generates test report after being also used to be compared according to state parameter with anticipatory data.
Design principle of the invention are as follows:
Due to more than DCS system I O point quantity (a large amount of signal (signal up to ten thousand) test requirements documents, existing test device it is defeated
Outgoing interface and input interface are few, cannot achieve all standing requirement to test point, use to solve this method prior art
2 kinds of mentalities of designing, the first is carried out using the method for increasing interface module, in the way of mould group, is needing more tests
When point, increase interface module, this method it is at high cost, need to be arranged according to different test cases different interface connections, therefore survey
Try inefficiency.Second of test method is whole network data test method, i.e., network interface is arranged in test device, passes through
Network interface issues data and passback feedback data is communicated with DCS system, and there are a deadly defects for this method, i.e., can only carry out
The verification test of DCS system logic, the transmission of data are all to be directly over network module to enter in the master controller of DCS, are not had
Have and communicated by I/O mouthfuls, therefore complete test in the case where I/O port transmission can not be formed in, lacks scientific feasibility.
In order to guarantee that test is scientific and solve the problems, such as that interface deficiency, the present invention are provided with main control in test device
Device, and the data-interface for docking with DCS is provided with 2 kinds of designs coexisted, one is conventional I/O port transmission form,
One is the transmission forms of network interface, not simple to rely on any transmission form in test, but two kinds transmit
Form carries out simultaneously, needs interface excessively in the current unappeasable situation of test device I/O interface in test case, from
Network interface configures test data, so that the data transmission that cannot provide interface provides network interface and completes, core is in master
Under the control of controller, the transmission of network data and I/O data is synchronously completed, wherein extension is realized pair using network communication
The modification and reading of IO variable, reduce the dependence to test device IO physical points in DCS system.The device can reduce wiring
Workload reduces cost, improves testing efficiency.
Preferably,
The I/O module of the test output input cabinet includes analog output module, switching value output module, analog quantity
Input module, switching input module.
The analog output module, switching value output module, Analog input mModule, switching input module selection are same
Walk module of the time no more than 5ms.
Since the form that network transmission and I/O are transmitted is different, there are problems that time delay, and DCS system is needed same
One moment provided corresponding feedback according to test signal, if there is time delay, will lead to feedback signal disorder, leads to test errors
And failure, in order to solve this problem, present applicant proposes at least following two solution, the core concepts of following two schemes
It is the time delay by calculating two kinds of accesses, calculation delay is poor, delay inequality counted when controlling signal and sending, so that
The signal for reaching DCS system can be solved the above problems with this in synchronization.
Preferably, the first solves delay problem are as follows:
Master controller is T1 at the time of sending and testing with I/O module transfer signal to I/O module, and master controller is being sent
Test is T2 at the time of docking network communication module to DCS with network transmission signal, before wherein master controller setting T2 is T1
At the time of, the difference between T2 and T1 is to ensure that DCS system receives test I/O module transfer signal and test in synchronization
Calculating acquisition is carried out with the actual conditions of network transmission signal.
Mode at the time of master controller is arranged before T2 is T1 is that T2, T1 is arranged using programmed method.
This method is realized due to the method for software programming, is first tested master controller and is sent test I/O module biography
After defeated signal, DCS system receives the time delay that I/O module transfer signal is used in test, and then re-test master controller sends test
After network transmission signal, DCS system receives the time delay of test network transmission signal, and the difference of 2 time delays is calculated
Out, it to go the difference of control T2, T1, thus can solve delay problem, guarantee that DCS can be synchronized and receive 2 accesses and send
Signal.
Preferably, second of solution delay problem are as follows:
The I/O module of test output input cabinet is T11 at the time of sending and testing I/O module transfer signal, test
The DCS docking network communication module of output input cabinet is T12 at the time of sending test network transmission signal, wherein T12
At the time of for before T11, the difference between T12 and T11 is passed with ensureing that DCS system receives test I/O module in synchronization
The actual conditions of defeated signal and test network transmission signal carry out calculating acquisition.
Mode at the time of setting before T12 is T11 are as follows: obtain test in the I/O module that test exports input cabinet and use
Delay circuit is set before I/O module transfer signal or after obtaining test I/O module transfer signal.
The core of the method for the solution time delay is that the delay circuit of hardware is arranged, controls signal by delay circuit and send
Moment, likewise, DCS system receives test I/ after it first tests master controller transmission test I/O module transfer signal
O module transmits the time delay of signal, and after then re-test master controller sends test network transmission signal, DCS system is received
The test time delay of network transmission signal, the difference of 2 time delays is calculated, to go the difference of control T12, T11, in this way
Delay problem can be solved, guarantees that DCS can be synchronized and receives the signal that 2 accesses are sent.
In principal it is also possible at the time of resolving test signal by master controller in setting DCS system, thus delay of control
Problem, but as testing experiment, do not allow generally to be configured equipment under test, therefore this method is as worst alternative approach.
It preferably, further include from extension cabinet when test interface is also insufficient；The test output inputs cabinet and further includes
From expansion card, test output input cabinet master controller is by establishing communication link, main control from expansion card with from extension cabinet
Test signal is also divided into test with from expansion I/O module transfer signal by device, is provided with main expansion card, I/O out of extension cabinet
Module, test are extended in cabinet with from expansion I/O module transfer signal by being transferred to from the main expansion card in extension cabinet
I/O module, then by the I/O module transfer in extension cabinet to DCS system.It is arranged from the purpose of extension cabinet and setting and tests
The principle of the I/O module of output input cabinet is consistent, and increases I/O interface quantity, and purpose is all simulation SOP/BUP/
LEVEL0 layers of external system device, it is required that being configured with analog signals and digital quantity signal, analog spot sensor, core instrument
Table signal, safety hand operation panel and Safety actuator and acquisition shutdown breaker signal.
Preferably, when being tested using only test output input cabinet:
A kind of test method based on arbitrarily extensible DCS system automatic test device, comprising the following steps:
After the external testing use-case obtained by host computer, test case is resolved into survey using test case processing software
Trial signal and anticipatory data；
Signal, which will be tested, by master controller resolves to test I/O module transfer signal and survey according to transmission path difference
Network transmission signal on probation；
The I/ that DCS system is sent to I/O module transfer signal will be tested by the I/O module that test exports input cabinet
O module,
Network communication module is docked by the DCS that test exports input cabinet to be sent to test with network transmission signal
The network communication module of DCS system；
DCS system repairs its IO variable with network transmission signal according to test I/O module transfer signal and test
Change；
The I/O module of input cabinet is exported by test, DCS docks network communication module acquisition DCS system and IO is become
State parameter out is fed back after amount variation；
By exporting test report with after anticipatory data comparison after host computer back production state parameter.
When using test output input cabinet and from extension cabinet:
A kind of test method based on arbitrarily extensible DCS system automatic test device, comprising the following steps:
After the external testing use-case obtained by host computer, test case is resolved into survey using test case processing software
Trial signal and anticipatory data；
Signal, which will be tested, by master controller resolves to test I/O module transfer signal and survey according to transmission path difference
On probation network transmission signal, test are with from expansion I/O module transfer signal；
The I/ that DCS system is sent to I/O module transfer signal will be tested by the I/O module that test exports input cabinet
O module,
Network communication module is docked by the DCS that test exports input cabinet to be sent to test with network transmission signal
The network communication module of DCS system；
It will be tested by the slave expansion card that test exports input cabinet and be sent to from expansion I/O module transfer signal from expansion
Cabinet is opened up, then will be tested with the I/O for being sent to DCS system from expansion I/O module transfer signal by the I/O module from extension cabinet
Module；
DCS system is according to test I/O module transfer signal and test network transmission signal, test with from expansion I/O
Module transfer signal modifies to its IO variable；
The input I/O module of cabinet is exported by test, DCS docks network communication module, from the I/O module of extension cabinet
DCS system is obtained for feeding back state parameter out after IO variable change；
By exporting test report with after anticipatory data comparison after host computer back production state parameter.
Compared with prior art, the present invention having the following advantages and benefits: during testing certain DCS system,
Since the DCS system I O point is more, needs automatic test device to configure a large amount of I/O module, thus bring testing cost
Increase, test the problems such as wiring workload increases, efficiency reduces.Using automatic test device extend function after, overcome with
The reduction of upper disadvantage, raising and cost for testing efficiency has remarkable result.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is specific link schematic diagram of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made below with reference to embodiment
Further to be described in detail, exemplary embodiment of the invention and its explanation for explaining only the invention, are not intended as to this
The restriction of invention.
Embodiment 1
It is as shown in Figure 1 and Figure 2:
A kind of arbitrarily extensible DCS system automatic test device, including host computer, test output input cabinet；
Test output input cabinet includes that master controller and master controller establish the I/O module of data transmission link, DCS
Network communication module, host computer docking network communication module are docked, wherein host computer docking network communication module is built with host computer
Vertical network communication, DCS docking network communication module are used to establish network communication with the network communication module of DCS system；I/O module
It is connect for the I/O module with DCS system；
Host computer is used to obtain test case post analysis and obtains test signal and anticipatory data and pass through test signal
Position machine docking network communication module is distributed to master controller；
Master controller is divided into test I/O module transfer signal and test network transmission signal for that will test signal,
And test is transferred to the I/O module of DCS system with I/O module transfer signal by the hardwire of I/O module, and test is used
Network transmission signal is transferred to the network communication module of DCS system by the optical fiber that DCS docks network communication module, by above-mentioned
After transmission test signal, the master controller of DCS system is made to pass through its I/O module and network communication module acquisition test letter respectively
Number, the master controller of DCS system modifies to its IO variable according to test signal；
Master controller is also used to pass through test output input respectively after DCS system makes feedback, when forming state parameter
It is returned after the I/O module of cabinet itself, the state parameter of DCS docking network communication module acquisition DCS system to host computer；
Host computer generates test report after being also used to be compared according to state parameter with anticipatory data.
Design principle of the invention are as follows:
Due to more than DCS system I O point quantity (a large amount of signal (signal up to ten thousand) test requirements documents, existing test device it is defeated
Outgoing interface and input interface are few, cannot achieve all standing requirement to test point, use to solve this method prior art
2 kinds of mentalities of designing, the first is carried out using the method for increasing interface module, in the way of mould group, is needing more tests
When point, increase interface module, this method it is at high cost, need to be arranged according to different test cases different interface connections, therefore survey
Try inefficiency.Second of test method is whole network data test method, i.e., network interface is arranged in test device, passes through
Network interface issues data and passback feedback data is communicated with DCS system, and there are a deadly defects for this method, i.e., can only carry out
The verification test of DCS system logic, the transmission of data are all to be directly over network module to enter in the master controller of DCS, are not had
Have and communicated by I/O mouthfuls, therefore complete test in the case where I/O port transmission can not be formed in, lacks scientific feasibility.
In order to guarantee that test is scientific and solve the problems, such as that interface deficiency, the present invention are provided with main control in test device
Device, and the data-interface for docking with DCS is provided with 2 kinds of designs coexisted, one is conventional I/O port transmission form,
One is the transmission forms of network interface, not simple to rely on any transmission form in test, but two kinds transmit
Form carries out simultaneously, needs interface excessively in the current unappeasable situation of test device I/O interface in test case, from
Network interface configures test data, so that the data transmission that cannot provide interface provides network interface and completes, core is in master
Under the control of controller, the transmission of network data and I/O data is synchronously completed, wherein extension is realized pair using network communication
The modification and reading of IO variable, reduce the dependence to test device IO physical points in DCS system.The device can reduce wiring
Workload reduces cost, improves testing efficiency.
Embodiment 2
It is as shown in Figure 1 and Figure 2:
Preferably, on the basis of embodiment 1,
The I/O module of the test output input cabinet includes analog output module, switching value output module, analog quantity
Input module, switching input module.
The analog output module, switching value output module, Analog input mModule, switching input module selection are same
Walk module of the time no more than 5ms.
Embodiment 3
It is as shown in Figure 1 and Figure 2:
Preferably, on the basis of embodiment 1,
Since the form that network transmission and I/O are transmitted is different, there are problems that time delay, and DCS system is needed same
One moment provided corresponding feedback according to test signal, if there is time delay, will lead to feedback signal disorder, leads to test errors
And failure, in order to solve this problem, present applicant proposes at least following two solution, the core concepts of following two schemes
It is the time delay by calculating two kinds of accesses, calculation delay is poor, delay inequality counted when controlling signal and sending, so that
The signal for reaching DCS system can be solved the above problems with this in synchronization.
Preferably, the first solves delay problem are as follows:
Master controller is T1 at the time of sending and testing with I/O module transfer signal to I/O module, and master controller is being sent
Test is T2 at the time of docking network communication module to DCS with network transmission signal, before wherein master controller setting T2 is T1
At the time of, the difference between T2 and T1 is to ensure that DCS system receives test I/O module transfer signal and test in synchronization
Calculating acquisition is carried out with the actual conditions of network transmission signal.
Mode at the time of master controller is arranged before T2 is T1 is that T2, T1 is arranged using programmed method.
This method is realized due to the method for software programming, is first tested master controller and is sent test I/O module biography
After defeated signal, DCS system receives the time delay that I/O module transfer signal is used in test, and then re-test master controller sends test
After network transmission signal, DCS system receives the time delay of test network transmission signal, and the difference of 2 time delays is calculated
Out, it to go the difference of control T2, T1, thus can solve delay problem, guarantee that DCS can be synchronized and receive 2 accesses and send
Signal.
Preferably, second of solution delay problem are as follows:
The I/O module of test output input cabinet is T11 at the time of sending and testing I/O module transfer signal, test
The DCS docking network communication module of output input cabinet is T12 at the time of sending test network transmission signal, wherein T12
At the time of for before T11, the difference between T12 and T11 is passed with ensureing that DCS system receives test I/O module in synchronization
The actual conditions of defeated signal and test network transmission signal carry out calculating acquisition.
Mode at the time of setting before T12 is T11 are as follows: obtain test in the I/O module that test exports input cabinet and use
Delay circuit is set before I/O module transfer signal or after obtaining test I/O module transfer signal.
The core of the method for the solution time delay is that the delay circuit of hardware is arranged, controls signal by delay circuit and send
Moment, likewise, DCS system receives test I/ after it first tests master controller transmission test I/O module transfer signal
O module transmits the time delay of signal, and after then re-test master controller sends test network transmission signal, DCS system is received
The test time delay of network transmission signal, the difference of 2 time delays is calculated, to go the difference of control T12, T11, in this way
Delay problem can be solved, guarantees that DCS can be synchronized and receives the signal that 2 accesses are sent.
In principal it is also possible at the time of resolving test signal by master controller in setting DCS system, thus delay of control
Problem, but as testing experiment, do not allow generally to be configured equipment under test, therefore this method is as worst alternative approach.
Embodiment 4
It is as shown in Figure 1 and Figure 2:
Preferably, on the basis of embodiment 1,
It preferably, further include from extension cabinet when test interface is also insufficient；The test output inputs cabinet and further includes
From expansion card, test output input cabinet master controller is by establishing communication link, main control from expansion card with from extension cabinet
Test signal is also divided into test with from expansion I/O module transfer signal by device, is provided with main expansion card, I/O out of extension cabinet
Module, test are extended in cabinet with from expansion I/O module transfer signal by being transferred to from the main expansion card in extension cabinet
I/O module, then by the I/O module transfer in extension cabinet to DCS system.It is arranged from the purpose of extension cabinet and setting and tests
The principle of the I/O module of output input cabinet is consistent, and increases I/O interface quantity, and purpose is all simulation SOP/BUP/
LEVEL0 layers of external system device, it is required that being configured with analog signals and digital quantity signal, analog spot sensor, core instrument
Table signal, safety hand operation panel and Safety actuator and acquisition shutdown breaker signal.
Embodiment 5
It is as shown in Figure 1 and Figure 2:
Preferably, when being tested using only test output input cabinet:
A kind of test method based on arbitrarily extensible DCS system automatic test device, comprising the following steps:
After the external testing use-case obtained by host computer, test case is resolved into survey using test case processing software
Trial signal and anticipatory data；
Signal, which will be tested, by master controller resolves to test I/O module transfer signal and survey according to transmission path difference
Network transmission signal on probation；
The I/ that DCS system is sent to I/O module transfer signal will be tested by the I/O module that test exports input cabinet
O module,
Network communication module is docked by the DCS that test exports input cabinet to be sent to test with network transmission signal
The network communication module of DCS system；
DCS system repairs its IO variable with network transmission signal according to test I/O module transfer signal and test
Change；
The I/O module of input cabinet is exported by test, DCS docks network communication module acquisition DCS system and IO is become
State parameter out is fed back after amount variation；
Embodiment 6
It is as shown in Figure 1 and Figure 2:
By exporting test report with after anticipatory data comparison after host computer back production state parameter.
When using test output input cabinet and from extension cabinet:
A kind of test method based on arbitrarily extensible DCS system automatic test device, comprising the following steps:
After the external testing use-case obtained by host computer, test case is resolved into survey using test case processing software
Trial signal and anticipatory data；
Signal, which will be tested, by master controller resolves to test I/O module transfer signal and survey according to transmission path difference
On probation network transmission signal, test are with from expansion I/O module transfer signal；
The I/ that DCS system is sent to I/O module transfer signal will be tested by the I/O module that test exports input cabinet
O module,
Network communication module is docked by the DCS that test exports input cabinet to be sent to test with network transmission signal
The network communication module of DCS system；
It will be tested by the slave expansion card that test exports input cabinet and be sent to from expansion I/O module transfer signal from expansion
Cabinet is opened up, then will be tested with the I/O for being sent to DCS system from expansion I/O module transfer signal by the I/O module from extension cabinet
Module；
DCS system is according to test I/O module transfer signal and test network transmission signal, test with from expansion I/O
Module transfer signal modifies to its IO variable；
The input I/O module of cabinet is exported by test, DCS docks network communication module, from the I/O module of extension cabinet
DCS system is obtained for feeding back state parameter out after IO variable change；
By exporting test report with after anticipatory data comparison after host computer back production state parameter.
In above-described embodiment, the cabinet 1 in figure is test output input cabinet, and cabinet 1 is from extension cabinet.
Further,
In the above-described embodiments:
Host computer: using standard industry computer, and control centre of the host computer as whole system has human-computer interaction,
Test software is write, the functions such as test equipment configuration, test equipment self diagnosis, passes through the master control cartoon in Ethernet and cabinet 1
Letter realizes the interaction of real-time system and non real-time system；Login password can be arranged in host computer, and it is automatic to can be realized test data
It records, automatically save, will not illegally be distorted；
Cabinet 1:SOP/BUP/LEVEL0 external system simulator, configured with master control card module (master controller), from expansion
Open up module (from expansion card), communication module (DCS docks network communication module, host computer docks network communication module), analog quantity
With On-off signal output module (I/O module), wherein the type of module and quantity can carry out flexible configuration according to actual needs.
Analog spot sensor, Nuclear Instrument signal and acquisition shutdown breaker signal, and read gateway signal；As DCS system IO
It when point quantity is more than the I O point number of test device, is communicated by master controller expanding communication module, so that tested DCS system
IO variable in modification and reading system is realized in connection, to extend the quantity of test I O point to meet test request.
Cabinet 2:SOP/BUP/LEVEL0 external system simulator is configured with analog signals and digital quantity signal, can
Spot sensor, Nuclear Instrument signal, safety hand operation panel and Safety actuator and acquisition shutdown breaker signal are simulated,
Gateway signal can be read.
Cabinet 1 can be used alone configured with main control card and from expansion card, and optical fiber can also be used and connect use with cabinet 2, even
It is controlled after connecing by 1 real time operating system.Cabinet 2 connect use with cabinet 1 using expansion card, and energy is independent after being inserted into main control card
It uses.
In addition, special door lock is arranged in cabinet, electrical equipment has earth leakage protective and surge protection etc..Automatic test device mould
Analog quantity signal, on-off model synchronization time are no more than 5ms, and signal settling time is no more than 1ms, and the time of signal sampling does not surpass
Cross 1ms.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of arbitrarily extensible DCS system automatic test device, which is characterized in that defeated including host computer, test output
Enter cabinet；
Test output input cabinet includes master controller, with master controller establish the I/O module of data transmission link, DCS is docked
Network communication module, host computer dock network communication module, and wherein host computer docking network communication module and host computer establish net
Network communication, DCS docking network communication module are used to establish network communication with the network communication module of DCS system；I/O module is used for
It is connect with the I/O module of DCS system；
Host computer is for obtaining test case post analysis acquisition test signal and anticipatory data and test signal being passed through host computer
Docking network communication module is distributed to master controller；
Master controller is divided into test I/O module transfer signal and test network transmission signal for that will test signal, and will
Test is transferred to the I/O module of DCS system with I/O module transfer signal by the hardwire of I/O module, and by test network
Transmission signal is transferred to the network communication module of DCS system by the optical fiber that DCS docks network communication module, passes through above-mentioned transmission
After test signal, make the master controller of DCS system pass through respectively its I/O module and network communication module obtain test signal,
The master controller of DCS system modifies to its IO variable according to test signal；
Master controller is also used to pass through test output input cabinet respectively after DCS system makes feedback, when forming state parameter
It is returned after the I/O module of itself, the state parameter of DCS docking network communication module acquisition DCS system to host computer；
Host computer generates test report after being also used to be compared according to state parameter with anticipatory data.
2. the arbitrarily extensible DCS system automatic test device of one kind according to claim 1, which is characterized in that institute
State test output input cabinet I/O module include analog output module, switching value output module, Analog input mModule,
Switching input module.
3. the arbitrarily extensible DCS system automatic test device of one kind according to claim 2, which is characterized in that institute
Stating analog output module, switching value output module, Analog input mModule, switching input module selects do not surpass synchronization time
Cross the module of 5ms.
4. the arbitrarily extensible DCS system automatic test device of one kind according to claim 1, which is characterized in that main
Controller is T1 at the time of sending and testing with I/O module transfer signal to I/O module, and master controller is sending test network
For T2 at the time of transmitting a signal to DCS docking network communication module, at the time of before wherein master controller setting T2 is T1, T2 with
Difference between T1 is to ensure that DCS system receives test with I/O module transfer signal and test network transmission in synchronization
The actual conditions of signal carry out calculating acquisition.
5. the arbitrarily extensible DCS system automatic test device of one kind according to claim 4, which is characterized in that main
Mode at the time of controller is arranged before T2 is T1 is that T2, T1 is arranged using programmed method.
6. the arbitrarily extensible DCS system automatic test device of one kind according to claim 1, which is characterized in that survey
The I/O module of examination output input cabinet is T11 at the time of sending and testing I/O module transfer signal, test output input machine
The DCS docking network communication module of cabinet is T12 at the time of sending test network transmission signal, before wherein T12 is T11
At the moment, the difference between T12 and T11 is to ensure that DCS system receives test I/O module transfer signal and test in synchronization
Calculating acquisition is carried out with the actual conditions of network transmission signal.
7. the arbitrarily extensible DCS system automatic test device of one kind according to claim 6, which is characterized in that set
Mode at the time of setting before T12 is T11 are as follows: obtain test I/O module transfer in the I/O module that test exports input cabinet
Delay circuit is set before signal or after obtaining test I/O module transfer signal.
8. the arbitrarily extensible DCS system automatic test device of one kind according to any one of claims 1-7,
It is characterized in that, further includes from extension cabinet；The test output input cabinet further includes from expansion card, test output input cabinet
Master controller by establishing communication link from expansion card with from extension cabinet, master controller will also test signal be divided into test with from
Expansion I/O module transfer signal, is provided with main expansion card, I/O module out of extension cabinet, and test is passed with from expansion I/O module
Defeated signal by from extension cabinet in main expansion card be transferred to extension cabinet in I/O module, then by extension cabinet in
I/O module transfer is to DCS system.
9. the test method based on a kind of arbitrarily extensible DCS system automatic test device, which is characterized in that including following
Step:
After the external testing use-case obtained by host computer, test case is resolved into test letter using test case processing software
Number and anticipatory data；
Test signal is resolved to according to transmission path difference by master controller and is tested with I/O module transfer signal and test use
Network transmission signal；
The I/O mould that DCS system is sent to I/O module transfer signal will be tested by the I/O module that test exports input cabinet
Block,
Network communication module is docked by the DCS that test exports input cabinet, and test is sent to DCS system with network transmission signal
The network communication module of system；
DCS system modifies to its IO variable with network transmission signal according to test I/O module transfer signal and test；
The I/O module of input cabinet is exported by test, DCS docks network communication module acquisition DCS system and IO variable is become
State parameter out is fed back after change；
By exporting test report with after anticipatory data comparison after host computer back production state parameter.
10. the test method based on a kind of arbitrarily extensible DCS system automatic test device, which is characterized in that including with
Lower step:
After the external testing use-case obtained by host computer, test case is resolved into test letter using test case processing software
Number and anticipatory data；
Test signal is resolved to according to transmission path difference by master controller and is tested with I/O module transfer signal and test use
Network transmission signal, test are with from expansion I/O module transfer signal；
The I/O mould that DCS system is sent to I/O module transfer signal will be tested by the I/O module that test exports input cabinet
Block,
Network communication module is docked by the DCS that test exports input cabinet, and test is sent to DCS system with network transmission signal
The network communication module of system；
It will be tested by the slave expansion card that test exports input cabinet and be sent to from expansion I/O module transfer signal from striking machine
Cabinet, then the I/O mould that DCS system is sent to from expansion I/O module transfer signal will be tested by the I/O module from extension cabinet
Block；
DCS system is according to test I/O module transfer signal and test network transmission signal, test with from expansion I/O module
Transmission signal modifies to its IO variable；
The I/O module of input cabinet is exported by test, DCS docks network communication module, obtains from the I/O module of extension cabinet
DCS system is for feeding back state parameter out after IO variable change；
By exporting test report with after anticipatory data comparison after host computer back production state parameter.
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