CN101887111A - System and method for automatically testing analog module used for programmable logic controller (PLC) - Google Patents
System and method for automatically testing analog module used for programmable logic controller (PLC) Download PDFInfo
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- CN101887111A CN101887111A CN2009101367816A CN200910136781A CN101887111A CN 101887111 A CN101887111 A CN 101887111A CN 2009101367816 A CN2009101367816 A CN 2009101367816A CN 200910136781 A CN200910136781 A CN 200910136781A CN 101887111 A CN101887111 A CN 101887111A
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Abstract
The invention discloses a system and a method for automatically testing an analog module with a settable input/output (I/O) channel in a programmable logic controller (PLC). The system comprises an upper control computer, a programmable direct current signal source, a digital multimeter, a channel and voltage/current mode switching control plate and a communication interface, wherein the upper control computer sets a testing parameter, issues an instruction to realize output or measurement, receives a test result and makes judgment according to the result; the programmable direct current signal source receives the instruction and the parameter to set the output as a voltage or current mode, sets and outputs a voltage/current signal to an input channel; the digital multimeter receives the instruction to set the measurement as the voltage or current mode, measures the voltage or current signal output by an output channel and returns a measured value to a computer; the channel and voltage/current mode switching control plate switches a test channel and a voltage/current connection mode according to the instruction; and the communication interface transmits the parameter, the instruction and the test result between each device and a tested model. A computer reads the conversion value of the voltage or current measured value of the input channel through the communication interface or transmits a set numerical value to the output channel to convert the set numerical value into a voltage or a current.
Description
Technical field
The present invention relates to the function and the performance test of the analog module of programmable logic controller (PLC) (PLC), particularly, relate to a kind of Auto-Test System and method that is used for programmable logic controller (PLC) (PLC) analog module.
Background technology
The analog module of PLC is to be used for the analog voltage/current of input is measured and exported the module of corresponding analog voltage/current according to setting numerical value, analog module generally comprises a plurality of passages, and passage is divided into two types: the input channel and the output channel that is used to export analog quantity that are used for input analog amount.Analog module mainly is converted to corresponding numerical value with the aanalogvoltage of outside input or current value by linear scaling by input channel and the numerical value measuring and the user is set by output channel is converted to corresponding aanalogvoltage or the current value line output of going forward side by side by linear scaling.
When the analog module to PLC carries out function and performance test, need test to comprise a plurality of projects such as transformed error, temperature drift, stability, and analog module has input multiplexer and multichannel output channel usually, therefore under complete manual test situation, finish the test of an analog module, not only have very huge workload, and be prone to the measurement mistake.
Summary of the invention
At above-mentioned shortcoming and defect, the present invention proposes a kind of be used for Auto-Test System and method the programmable logic controller (PLC) analog module, integrated control platform and test platform.Receive the test parameter that the user sets by tester's interactive interface, the testing apparatus collaborative work that the control test process will be used, implement test process according to certain script file, and test result is saved in the document, thereby realize the function of analog module and the robotization of performance test.This script file has defined needs the project name of test and the flow process of this project testing.This script file can freely be added and revised by the user.
Particularly, according to one aspect of the invention, a kind of Auto-Test System that the analog module that is assemblied in the programmable logic controller system with CPU module is tested is provided, wherein said analog module comprises a plurality of I/O passages that are provided with, described Auto-Test System is characterised in that and comprises: upper control computer, the control platform software is installed, the various parameters that are provided for testing, issuing command is to realize corresponding output or to measure action, acceptance test result, according to test result the function and the performance of analog module are made judgement; Dc signal source able to programme, instruction that the reception upper control computer is sent and parameter are set the input channel that the voltage/current signals value that is output as voltage or current-mode, setting and output setting arrives analog module; Digital multimeter, it is voltage or current-mode that the instruction that the reception upper control computer is sent comes the setting measurement pattern, and the correspondent voltage or the current signal of the output of measure analog amount module output channel, and measured value is turned back to upper control computer; Passage and voltage, the instruction of sending by the reception upper control computer comes switch test passage and switched voltage/electric current wiring pattern; Communication interface, be used in upper control computer and comprise between the utility appliance of dc signal source able to programme, digital multimeter, passage and voltage, the measured analog module and communicating, transmit the parameter, instruction and the test result that are used to test.Wherein, upper control computer reads the voltage of input channel of programmable logic controller (PLC) analog module or the conversion value of current measurement value by communication interface, perhaps will set voltage or the electric current of output channel to be converted to corresponding size that numerical value passes to analog module.
Wherein said Auto-Test System also comprises: direct supply able to programme, set and export the power values of setting by instruction and parameter that communication interface reception upper control computer is sent, for measured analog module provides direct supply.
Wherein said Auto-Test System also comprises: controlled incubator, when analog module is tested, analog module is put into wherein, by receiving target temperature and the humidity that instruction that upper control computer sends and parameter come to set for analog module test environment, and feed back Current Temperatures and humidity in real time to upper control computer, so that upper control computer starts the measurement of analog module when detecting controlled incubator and reach target temperature and target humidity environment.
Wherein said communication interface is the interface that the upper control computer mainboard carries, or is expanded out by miscellaneous equipment by upper control computer.Host computer is connected the row data communication of going forward side by side with each utility appliance by it.
Wherein said control platform software is to develop realization by programming language.The testing process of described Auto-Test System is implemented according to the description of script file.
Wherein said control platform software imports and derives operation to the configuration parameter of direct supply able to programme, dc signal source able to programme, digital multimeter, controlled incubator or passage and voltage.
According to one aspect of the invention, a kind of automatic test approach that the analog module that is assemblied in the programmable logic controller system with CPU module is tested is provided, wherein said analog module comprises a plurality of I/O passages that are provided with, described automatic test approach comprises step: judge whether to use controlled incubator, direct supply able to programme according to the test needs, and carry out corresponding setting; The voltage mode test or the current-mode test of described analog module are carried out in judgement, and test accordingly; After the test,, then stop controlled incubator if use controlled incubator; If use direct supply able to programme, then close direct supply able to programme; Generate a form according to test result, and the function and the performance of analog module are made the judged result analysis report according to test result.
Wherein said voltage mode test comprises step:
Tested analog module is configured to voltage mode;
Judgement is carried out the voltage mode measurement or the voltage mode of the output channel of tested analog module of the input channel of tested analog module and is measured;
Measure if carry out the voltage mode of input channel, then
It is voltage mode that dc signal source able to programme is set;
First magnitude of voltage to be measured is set to dc signal source able to programme, and controls dc signal source able to programme with the output of opening dc signal source able to programme and then export set magnitude of voltage to be measured; Carry out the test of each input channel of tested analog module successively;
The output of closing dc signal source able to programme is to stop to export set magnitude of voltage to be measured;
Judge whether it is last magnitude of voltage to be measured;
If judge it is not last magnitude of voltage to be measured, next magnitude of voltage to be measured then is set to dc signal source able to programme, and control dc signal source able to programme with the output of opening dc signal source able to programme and then export set magnitude of voltage to be measured, carry out the test of each input channel of tested analog module successively; The output of closing dc signal source able to programme is to stop to export set magnitude of voltage to be measured;
Return to judge whether it is the step of last magnitude of voltage to be measured, till finishing last magnitude of voltage to be measured;
The dc signal source able to programme that resets,
Measure if carry out the voltage mode of output channel, then
It is voltage mode that digital multimeter is set;
The wiring that is used for digital multimeter that is provided with on passage and the voltage is a voltage mode, first output voltage setting value all output channels to tested analog module are set, carry out the test of each output channel of tested analog module successively;
Judge whether it is last output voltage setting value;
If judge it is not last output voltage setting value, next output voltage setting value all output channels to tested analog module then are set, carry out the test of each output channel of tested analog module successively;
Return to judge whether it is the step of last output voltage setting value, till finishing last magnitude of voltage to be measured;
0 setting value all output channels to tested analog module are set;
The wiring that is used for digital multimeter on reset passages and the voltage;
Digital multimeter resets.
The testing procedure that wherein carries out each input channel of tested analog module successively comprises:
The test of an input channel of beginning;
It is the voltage mode wiring that tested input channel is set;
On passage and voltage, connect tested input channel;
From programmable logic controller (PLC), read the measurement conversion value of voltage signal of the tested input channel input of tested analog module;
Record test condition and result data are to described report file;
On passage and voltage, turn-off tested input channel;
The tested input channel pattern that on passage and voltage, resets wiring.
The step of test of wherein carrying out each output channel of tested analog module successively comprises:
The test of an output channel of beginning;
It is the voltage mode wiring that tested input channel is set;
On passage and voltage, connect tested output channel;
From digital multimeter, read the measured value of voltage signal of the tested output channel output of tested analog module;
Record test condition and result data are to described report file;
On passage and voltage, turn-off tested output channel;
The tested output channel pattern that on passage and voltage, resets wiring.
Wherein said current-mode test comprises step:
Tested analog module is configured to current-mode;
Judgement is carried out the current-mode measurement or the current-mode of the output channel of tested analog module of the input channel of tested analog module and is measured;
Measure if carry out the current-mode of input channel, then
It is current-mode that dc signal source able to programme is set;
First current value to be measured is set to dc signal source able to programme, and controls dc signal source able to programme with the output of opening dc signal source able to programme and then export set current value to be measured; Carry out the test of each input channel of tested analog module successively;
The output of closing dc signal source able to programme is to stop to export set current value to be measured;
Judge whether it is last current value to be measured;
If judge it is not last current value to be measured, next current value to be measured then is set to dc signal source able to programme, and control dc signal source able to programme with the output of opening dc signal source able to programme and then export set current value to be measured, carry out the test of each input channel of tested analog module successively; The output of closing dc signal source able to programme is to stop to export set current value to be measured;
Return to judge whether it is the step of last current value to be measured, till finishing last current value to be measured;
Dc signal source able to programme resets;
Measure if carry out the current-mode of output channel, then
It is current-mode that digital multimeter is set;
The wiring that is used for digital multimeter that is provided with on passage and the voltage is a current-mode, first output current setting value all output channels to tested analog module 7 are set, carry out the test of each output channel of tested analog module successively
Judge whether it is last output current setting value;
If judge it is not last output current setting value, next output current setting value all output channels to tested analog module then are set, carry out the test of each output channel of tested analog module successively;
Return to judge whether it is the step of last output current setting value, till finishing last current value to be measured;
0 setting value all output channels to tested analog module are set;
The wiring that is used for digital multimeter on reset passages and the voltage;
Digital multimeter resets.
The testing procedure that wherein carries out each input channel of tested analog module successively comprises:
The test of an input channel of beginning;
It is the current-mode wiring that tested input channel is set;
On passage and voltage, connect tested input channel;
From programmable logic controller (PLC), read the measurement conversion value of current signal of the tested input channel input of tested analog module;
Record test condition and result data are to described report file;
On passage and voltage, turn-off tested input channel;
The tested input channel pattern that on passage and voltage, resets wiring,
The step of test of wherein carrying out each output channel of tested analog module successively comprises:
The test of an output channel of beginning;
It is the current-mode wiring that tested input channel is set;
On passage and voltage, connect tested output channel;
From digital multimeter, read the measured value of current signal of the tested output channel output of tested analog module;
Record test condition and result data are to described report file;
On passage and voltage, turn-off tested output channel;
The tested output channel pattern that on passage and voltage, resets wiring.
According to technique scheme of the present invention, can realize transformation from the manual testing to automatic test, not only can improve the testing efficiency of PLC analog module greatly, increase the test coverage rate, and improved precision of test result.
Description of drawings
By below in conjunction with the detailed description of accompanying drawing, will understand the present invention better to example embodiment.It should be clearly understood that described example embodiment only is as an illustration and example, and the invention is not restricted to this.The spirit and scope of the present invention are only limited by the particular content of appended claims.Brief description of drawings is described below, wherein:
Fig. 1 is the synoptic diagram according to the Auto-Test System of analog module in the programmable logic controller (PLC) of the present invention;
Fig. 2 always schemes according to the workflow of the automatic test approach of analog module in the programmable logic controller (PLC) of the present invention;
Fig. 3 is the workflow diagram about the voltage mode test according to the automatic test approach of analog module in the programmable logic controller (PLC) of the present invention;
Fig. 4 is the workflow diagram of testing about the input gap voltage pattern among Fig. 3;
Fig. 5 is the workflow diagram of testing about the output channel voltage mode among Fig. 3;
Fig. 6 is the tester interface synoptic diagram according to the Auto-Test System of analog module in the programmable logic controller (PLC) of the present invention.
Embodiment
To introduce example embodiment of the present invention in detail now, its example is shown in the drawings.Embodiment is described with reference to the accompanying drawings with explanation the present invention.
Fig. 1 is the synoptic diagram according to the Auto-Test System of analog module in the programmable logic controller (PLC) of the present invention.
As shown in Figure 1, programmable logic controller (PLC) analog module Auto-Test System according to the present invention comprises upper control computer 1, direct supply able to programme 2, dc signal source able to programme 3, digital multimeter 4, controlled incubator 5, passage and voltage 6, places the tested analog module 7 in the controlled incubator 5.Analog module Auto-Test System according to the present invention also comprises and is used for upper control computer 1 and the communication interface 8 that comprises that equipment that direct supply 2 able to programme, dc signal source able to programme 3, digital multimeter 4, controlled incubator 5, passage and voltage 6 etc. are used to test communicates.
Upper control computer 1 is the control platform, the control platform software that is applicable to according to Auto-Test System function of the present invention is installed, and (it comprises the interface that is used for the tester, as shown in Figure 6), it is the core of this system, all command-control signals all send thus, also all in this setting/finally obtain and generate the test result form, described control platform software is developed realization by programming language to all setting numerical value/measurement results that is used to measure.The user at first is the voltage or the magnitude of current, is that input channel or output channel are provided with passage and voltage 6 by upper control computer 1 (being specially the interface by the tester) according to the concrete passage of tested analog module 7; Then can select the equipment that to use at certain test, such as direct supply 2 able to programme, dc signal source able to programme 3, digital multimeter 4, controlled incubator 5 or the like by upper control computer 1 (the also tester interface that is promptly generated) by this control platform software; Then to the equipment disposition relevant parameter of each selection, as module for power supply voltage, voltage/current test point, test duration, probe temperature, cycle index etc.; After this upper control computer 1 (also promptly by this control platform software) is controlled selected each equipment collaboration work according to the certain procedure step and is implemented testing process.
Upper control computer 1 communicates by communication interface 8 and the equipment, the tested analog module 7 that respectively are used to test, each equipment, tested analog module 7 are sent instruction, setup parameter value or read measured value, test result output is saved as report file, and the function and the performance of analog module 7 are made the test result judgement according to measured value.Communication interface 8 shown in Fig. 1 and upper control computer 1, the equipment, the annexation between the tested analog module 7 that respectively are used to test only are schematic, those of ordinary skills can revise communication interface 8 and upper control computer 1, respectively be used to the equipment of testing, the annexation between the tested analog module 7 according to concrete configuration or test needs, communication interface 8 can be the interface that the upper control computer mainboard carries, and also can be expanded out by miscellaneous equipment by upper control computer.Upper control computer is connected the row data communication of going forward side by side with each utility appliance by it.
As shown in Figure 1, upper control computer 1 is set the target temperature of controlled incubator 5/the read Current Temperatures of controlled incubator 5 according to the test event of tested analog module 7 by communication interface 8; Upper control computer 1 reads the voltage of input channel of tested analog module 7 or the conversion value of current measurement value by communication interface 8 according to the test event of tested analog module 7, also can will set voltage or the electric current that output channel that numerical value pass to tested analog module 7 is converted to corresponding size; The direct supply that upper control computer 1 is set direct supply 2 able to programme by communication interface 8 and direct supply 2 outputs able to programme are set according to the test event of tested analog module 7; Upper control computer 1 is set dc signal source 3 able to programme according to the test event of tested analog module 7 by communication interface 8 and is made the suitable voltage/current signals of its output.Upper control computer 1 is passed through communication interface 8 control channels and the passage of voltage 6 and the setting of voltage according to the test event of tested analog module 7; Upper control computer 1 reads the voltage/current measured value of digital multimeter 4 by communication interface 8 according to the test event of tested analog module 7.
Passage and voltage 6 changes the mode of connection the corresponding I/O passage of tested analog module 7 or the switching of current/voltage pattern is set further according to the instruction that is provided with of passage that receives from upper control computer 1 and voltage.Thereby make the input channel of tested analog module 7 by 6 inputs of passage and voltage from the voltage/current signals of dc signal source 3 able to programme or make the voltage or the current signal of output channel of the tested analog module 7 that the tester sets output to digital multimeter 4 by passage and voltage 6.
The output of digital multimeter 4 measured voltage/current mode switching control plate 6 with the relevant voltage/current signals of tested analog module 7 output channels, and output to upper control computer 1 by communication interface 8 and handle.
The measured value of the voltage/current signals of the conversion value of the voltage/current signals measured value of the input channel of the tested analog module 7 that reads by communication interface 8 according to upper control computer 1 and the output channel of tested analog module 7, the input channel of 1 pair of tested analog module 7 of upper control computer and the function and the performance of output channel are made judgement.
For convenient configuration respectively is used for the parameter of testing apparatus, can import and derive operation to the configuration parameter of each equipment by the control platform software.Implementing the script file of testing process can make amendment according to the needs of oneself for the tester.
(1) direct supply 2 able to programme provides direct supply for tested analog module 7.Set and export the power values of setting by instruction and parameter that the control platform software that receives upper control computer 1 sends.Because partial simulation amount module does not need the outside that power supply is provided, therefore direct supply 2 able to programme belongs to optional equipment.
(2) dc signal source 3 able to programme provides the voltage/current input signal for tested analog module 7 input channels.Set the voltage/current input signal values that is output as voltage or current-mode, setting and output setting by instruction and parameter that the control platform software that receives upper control computer 1 sends.
(3) digital multimeter 4 is used for measuring the voltage/current signals of tested analog module 7 output channels output.It is that voltage or current-mode and return measurement value are to controlling platform software that the instruction of sending by the control platform software that receives upper control computer 1 comes the setting measurement signal.
(4) controlled incubator 5 is used for providing for tested analog module 7 test environment of different temperatures and humidity.By receiving target temperature and the humidity that instruction that the control platform software sends and parameter are set incubator, and feed back Current Temperatures and humidity in real time to upper control computer 1, so that upper control computer 1 is detecting the measurement that starts tested analog module 7 when incubator reaches target temperature and target humidity environment.If under common normal environment for use, test tested analog module 7, when promptly not needing probe temperature and humidity are set, can not use controlled incubator 5.Therefore controlled incubator 5 belongs to optional equipment.
(5) passage and voltage 6 are exclusively used in according to analog module Auto-Test System of the present invention, and the instruction of sending by reception upper control computer 1 comes switch test I/O passage and switched voltage/electric current wiring pattern.
Tested analog module 7 belongs to measured controlled device, and it need be assemblied in the PLC system with CPU module.The CPU module responds of PLC system is in the instruction and the parameter that receive from upper control computer 1, returns the conversion value of input gap voltage/current signal measured value and the voltage/current signals numerical value of setting output channel to upper control computer 1.
Fig. 2 always schemes according to the workflow of the automatic test approach of analog module in the programmable logic controller (PLC) of the present invention.Referring to Fig. 2, after the test of beginning analog module,, in upper control computer 1, create a report file automatically at first at step S1.At step S2, upper control computer 1 judges whether to use controlled incubator 5 as required.If do not use controlled incubator 5, then carry out step S5.If use controlled incubator 5, then target temperature and humidity value are set to controlled incubator 5 by communication interface 8, and start controlled incubator 5 in step S3 upper control computer 1.Then detect in controlled incubator 5, whether to arrive target temperature and humidity in real time by communication interface 8 in step S4 upper control computer 1.If detect no show target temperature and humidity in the controlled incubator 5 in step S4, the continuation that then circulates detects the temperature and humidity in the controlled incubator 5.Arrive target temperature and humidity in the controlled incubator 5 if in step S4, detect, then carry out step S5.
In step S5, upper control computer 1 judges whether to use direct supply 2 able to programme as required.If do not use direct supply 2 able to programme, then carry out step S7.If use direct supply 2 able to programme, then be provided with by communication interface 8 and set power values, and start the corresponding power values of setting of direct supply 2 outputs able to programme to tested analog module 7 to direct supply 2 able to programme in step S6 upper control computer 1.Then carry out step S7.
In step S7, upper control computer 1 judges whether to carry out the voltage mode test as required.If do not need to carry out the voltage mode test, then carry out step S9.If need carry out the voltage mode test, then carry out the voltage mode test at step S8.Then carry out step S9.The voltage mode test is described in detail with reference to Fig. 3-5.
In step S9, upper control computer 1 judges whether to carry out the current-mode test as required.If do not need to carry out the current-mode test, then carry out step S11.If need carry out the current-mode test, then carry out the current-mode test at step S10.Then carry out step S11.Current-mode test and voltage mode test class are seemingly.
In step S11, upper control computer 1 judges whether to have used direct supply 2 able to programme.If do not use direct supply 2 able to programme, then carry out step S13.If used direct supply 2 able to programme, then close direct supply 2 able to programme by communication interface 8 in step S12 upper control computer 1.Then carry out step S13.
In step S13, upper control computer 1 judges whether to have used controlled incubator 5.If do not use controlled incubator 5, then carry out step S15.If used controlled incubator 5, then stop controlled incubator 5 by communication interface 8 in step S14 upper control computer 1.Then carry out step S15.
In step S15, upper control computer 1 generates form according to test result, and according to test result the function and the performance of analog module 7 is made the judged result analysis report.Then in step S16, upper control computer 1 is finished by this test event of user interface ejection information indicating user of Control Software.Finish then to measure.
Fig. 3 is the workflow diagram about the voltage mode test according to the automatic test approach of analog module in the programmable logic controller (PLC) of the present invention.If in the step S7 of Fig. 2, upper control computer 1 is judged as required need carry out the voltage mode test, then forwards the step S81 of Fig. 3 to.Referring to Fig. 3, upper control computer 1 is configured to voltage mode by the CPU in communication interface 8, the programmable logic controller (PLC) with tested analog module 7 in step S81.Then at step S82, whether the input channel number of judging tested analog module 7 is greater than 0.If the input channel number of tested analog module 7 is not more than 0 (if the input channel number of tested analog module 7 is not more than 0, the input channel number that is tested analog module 7 equals 0, because the input channel number of tested analog module 7 can not be less than 0), then proceed to step S90.If the input channel number of tested analog module 7 is greater than 0, then upper control computer 1 is provided with dc signal source 3 able to programme by communication interface 8 and is voltage mode.At step S84, upper control computer 1 is provided with first magnitude of voltage to be measured to dc signal source 3 able to programme by communication interface 8, and controls dc signal source 3 able to programme with the output of opening dc signal source 3 able to programme and then export set magnitude of voltage to be measured.Then at step S85, carry out the test of each input channel of tested analog module 7 successively, the test of each input channel is described in detail with reference to Fig. 4.Then at step S86, upper control computer 1 is closed the output of dc signal source 3 able to programme to stop to export set magnitude of voltage to be measured.Judge whether it is last magnitude of voltage to be measured in step S88 upper control computer 1.If judge it is not last magnitude of voltage to be measured at step S88, then at step S87, upper control computer 1 is provided with next magnitude of voltage to be measured to dc signal source 3 able to programme by communication interface 8, and control dc signal source 3 able to programme with the output of opening dc signal source 3 able to programme and then export set magnitude of voltage to be measured, then forward step S85 to, carry out the test of the input channel of tested analog module 7.If judge it is last magnitude of voltage to be measured at step S88, then in step S89 upper control computer 1 by communication interface 8 dc signal source 3 able to programme that resets.Then proceed to step S90.
At step S90, whether the output channel number of judging tested analog module 7 is greater than 0.If the output channel number of tested analog module 7 is not more than 0 (if the input channel number of tested analog module 7 is not more than 0, the input channel number that is tested analog module 7 equals 0, because the input channel number of tested analog module 7 can not be less than 0), then the end voltage pattern is tested, and turns back to the step S9 of Fig. 2.If the output channel number of tested analog module 7 greater than 0, then is provided with digital multimeter 4 in step S91 upper control computer 1 by communication interface 8 and is voltage mode.At step S92, upper control computer 1 is a voltage mode by the wiring that is used for digital multimeter that communication interface 8 is provided with on passage and the voltage 6, and at step S93, upper control computer 1 is provided with first output voltage setting value all output channels to tested analog module 7 by communication interface 8.Then at step S94, carry out the test of each output channel of tested analog module 7 successively, the test of each output channel is described in detail with reference to Fig. 5.Then at step S96, upper control computer 1 judges whether it is last output voltage setting value.If judge it is not last output voltage setting value at step S96, then at step S95, upper control computer 1 is provided with next output voltage setting value all output channels to tested analog module 7 by communication interface 8, then forward step S94 to, carry out the test of the output channel of tested analog module 7.If judge it is last output voltage setting value at step S96, then 0 setting value is set to all output channels of tested analog module 7 by communication interface 8 in step S97 upper control computer 1, and in step S98 upper control computer 1 by the wiring that is used for digital multimeter on communication interface 8 reset passages and the voltage 6.Then in step S99 upper control computer 1 by communication interface 8 digital multimeter 4 that resets.Forward the step S9 of Fig. 2 then to.
Fig. 3 has described the workflow diagram about the voltage mode test according to the automatic test approach of analog module in the programmable logic controller (PLC) of the present invention, according to the automatic test approach of analog module in the programmable logic controller (PLC) of the present invention about current-mode test and above-mentioned voltage mode test class seemingly, difference is tested analog module 7 is configured to current-mode, dc signal source 3 able to programme is configured to current-mode, digital multimeter is set to current-mode, the wiring that is used for digital multimeter on passage and the voltage 6 is set to voltage mode, and the measured value and the setting value that wherein relate to are current signal.
Fig. 4 is the workflow diagram of testing about the input gap voltage pattern among Fig. 3.After the step S84 of Fig. 3, forward Fig. 4 to, carry out the test of each input channel of tested analog module 7 successively.Referring to Fig. 4,, begin the test of first input channel at step S851.At step S852, upper control computer 1 is provided with tested input channel by communication interface 8 on passage and voltage 6 be voltage mode wiring (if about the measurement of current-mode, then being set to the current-mode wiring).Then, at step S853, upper control computer 1 is connected tested input channel by communication interface 8 on passage and voltage 6.From PLC, read the measurement conversion value (, then reading the measurement conversion value of current signal of the tested input channel input of tested analog module 7) of voltage signal of the tested input channel input of tested analog module 7 by communication interface 8 in step S854 upper control computer 1 if about the measurement of current-mode.At step S855, upper control computer 1 record test condition and result data are to report file.At step S856, upper control computer 1 is turn-offed tested input channel by communication interface 8 on passage and voltage 6.At step S857, upper control computer 1 is then carried out step S859 by the communication interface 8 tested input channel pattern wiring that resets on passage and voltage 6.At step S859, upper control computer 1 judges whether it is last input channel, if last input channel then forwards the S86 of Fig. 3 to.If judge it is not last input channel in step S859 upper control computer 1, then at step S858, begin the test of next input channel, then forward step S852 to.
Fig. 5 is the workflow diagram of testing about the output channel voltage mode among Fig. 3.After the step S93 of Fig. 3, forward Fig. 5 to, carry out the test of each output channel of tested analog module 7 successively.Referring to Fig. 5,, begin the test of first output channel at step S941.At step S852, upper control computer 1 is provided with tested input channel by communication interface 8 on passage and voltage 6 be voltage mode wiring (if about the measurement of current-mode, then being set to the current-mode wiring).Then, at step S943, upper control computer 1 is connected tested output channel by communication interface 8 on passage and voltage 6.From digital multimeter 4, read the measured value (, then reading the measured value of current signal of the tested output channel output of tested analog module 7) of voltage signal of the tested output channel output of tested analog module 7 by communication interface 8 in step S944 upper control computer 1 if about the measurement of current-mode.At step S945, upper control computer 1 record test condition and result data are to report file.At step S946, upper control computer 1 is turn-offed tested output channel by communication interface 8 on passage and voltage 6.At step S947, upper control computer 1 is then carried out step S949 by the communication interface 8 tested output channel pattern wiring that resets on passage and voltage 6.At step S949, upper control computer 1 judges whether it is last output channel, if last output channel then forwards the S96 of Fig. 3 to.If judge it is not last input channel in step S949 upper control computer 1, then at step S948, begin the test of next output channel, then forward step S942 to.
The automatic test approach of programmable logic controller (PLC) analog module of the present invention has been described according to Fig. 2-5.Fig. 2-5 only is schematically, and those of ordinary skills can revise order of each step or the like according to concrete configuration or test needs.
Fig. 6 is the tester interface synoptic diagram according to the Auto-Test System of programmable logic controller (PLC) analog module of the present invention.Fig. 2 only is schematically, and those of ordinary skills can or test needs or revise its interfacial structure and style according to the personal like according to concrete configuration.
The Auto-Test System of programmable logic controller (PLC) analog module of the present invention and method can realize the transformation from the manual testing to automatic test, not only can improve the testing efficiency of PLC analog module greatly, increase the test coverage rate, and improved precision of test result.
Though illustrated and described the example embodiment of being considered of the present invention, but it will be appreciated by those skilled in the art that, along with development of technology, can make various changes and revise and can replace its element and not deviate from true scope of the present invention with equivalent.
Claims (11)
1. Auto-Test System that the analog module (7) that is assemblied in the programmable logic controller system with CPU module is tested, wherein said analog module (7) comprises a plurality of I/O passages that are provided with, and described Auto-Test System is characterised in that and comprises:
Upper control computer (1), the control platform software is installed, the various parameters that are provided for testing, issuing command to be realizing corresponding output or to measure action, the acceptance test result, according to test result the function and the performance of analog module (7) are made judgement;
Dc signal source able to programme (3), instruction that reception upper control computer (1) is sent and parameter are set the input channel that the voltage/current signals value that is output as voltage or current-mode, setting and output setting arrives analog module (7);
Digital multimeter (4), it is voltage or current-mode that the instruction that reception upper control computer (1) is sent comes the setting measurement pattern, and the correspondent voltage or the current signal of measure analog amount module (7) output channel output, and measured value turned back to upper control computer (1);
Passage and voltage (6), the instruction of sending by reception upper control computer (1) comes switch test passage and switched voltage/electric current wiring pattern;
Communication interface, be used in upper control computer (1) and comprise between the utility appliance of dc signal source able to programme (3), digital multimeter (4), passage and voltage (6), the measured analog module (7) and communicating, the parameter that transmission is used to test, instruction and test result
Wherein, upper control computer (1) reads the voltage of input channel of programmable logic controller (PLC) analog module (7) or the conversion value of current measurement value by communication interface, perhaps will set voltage or the electric current of output channel to be converted to corresponding size that numerical value passes to analog module (7).
2. Auto-Test System as claimed in claim 1 is characterized in that also comprising:
The power values of setting is set and exported to direct supply able to programme (2) by instruction and parameter that communication interface reception upper control computer (1) is sent, for measured analog module (7) provides direct supply.
3. Auto-Test System as claimed in claim 1 or 2 is characterized in that also comprising:
Controlled incubator (5), when to analog module (7) when testing, analog module (7) is put into wherein, by receiving target temperature and the humidity that instruction that upper control computer (1) sends and parameter come to set for analog module (7) test environment, and feed back Current Temperatures and humidity in real time to upper control computer (1), so that upper control computer (1) starts the measurement of analog module (7) when detecting controlled incubator and reach target temperature and target humidity environment.
4. Auto-Test System as claimed in claim 1 is characterized in that
Described communication interface (8) is the interface that upper control computer (1) mainboard carries, or is expanded out by miscellaneous equipment by upper control computer (1).
5. Auto-Test System as claimed in claim 1 is characterized in that
Described control platform software is to develop realization by programming language.The testing process of described Auto-Test System is implemented according to the description of script file.
6. Auto-Test System as claimed in claim 3 is characterized in that
Described control platform software imports and derives operation to the configuration parameter of direct supply able to programme (2), dc signal source able to programme (3), digital multimeter (4), controlled incubator (5) or passage and voltage (6).
7. automatic test approach that the analog module (7) that is assemblied in the programmable logic controller system with CPU module is tested, wherein said analog module (7) comprises a plurality of I/O passages that are provided with, and described automatic test approach comprises step:
Judge whether to use controlled incubator (5), direct supply able to programme (2) according to the test needs, and carry out corresponding setting;
The voltage mode test or the current-mode test of described analog module (7) are carried out in judgement, and test accordingly;
After the test,, then stop controlled incubator (5) if use controlled incubator (5); If use direct supply able to programme (2), then close direct supply able to programme (2);
Generate a form according to test result, and the function and the performance of analog module (7) are made the judged result analysis report according to test result.
8. automatic test approach as claimed in claim 7, wherein said voltage mode test comprises step:
Tested analog module (7) is configured to voltage mode;
Judgement is carried out the voltage mode of the input channel of tested analog module (7) and is measured or the measurement of the voltage mode of the output channel of tested analog module (7);
Measure if carry out the voltage mode of input channel, then
It is voltage mode that dc signal source able to programme (3) is set;
First magnitude of voltage to be measured is set to dc signal source able to programme (3), and controls dc signal source able to programme (3) with the output of opening dc signal source able to programme (3) and then export set magnitude of voltage to be measured; Carry out the test of each input channel of tested analog module (7) successively;
The output of closing dc signal source able to programme (3) is to stop to export set magnitude of voltage to be measured;
Judge whether it is last magnitude of voltage to be measured;
If judge it is not last magnitude of voltage to be measured, next magnitude of voltage to be measured then is set to dc signal source able to programme (3), and control dc signal source able to programme (3) with the output of opening dc signal source able to programme (3) and then export set magnitude of voltage to be measured, carry out the test of each input channel of tested analog module (7) successively; The output of closing dc signal source able to programme (3) is to stop to export set magnitude of voltage to be measured;
Return to judge whether it is the step of last magnitude of voltage to be measured, till finishing last magnitude of voltage to be measured;
The dc signal source able to programme (3) that resets,
Measure if carry out the voltage mode of output channel, then
Digital multimeter (4) is set is voltage mode;
The wiring that is used for digital multimeter that is provided with on passage and the voltage (6) is a voltage mode, first output voltage setting value all output channels to tested analog module (7) are set, carry out the test of each output channel of tested analog module (7) successively;
Judge whether it is last output voltage setting value;
If judge it is not last output voltage setting value, next output voltage setting value all output channels to tested analog module (7) then are set, carry out the test of each output channel of tested analog module (7) successively;
Return to judge whether it is the step of last output voltage setting value, till finishing last magnitude of voltage to be measured;
0 setting value all output channels to tested analog module (7) are set;
The wiring that is used for digital multimeter on reset passages and the voltage (6);
The digital multimeter that resets (4).
9. automatic test approach as claimed in claim 8,
The testing procedure that wherein carries out each input channel of tested analog module (7) successively comprises:
The test of an input channel of beginning;
It is the voltage mode wiring that tested input channel is set;
Go up the tested input channel of connection at passage and voltage (6);
From programmable logic controller (PLC), read the measurement conversion value of voltage signal of the tested input channel input of tested analog module (7);
Record test condition and result data are to described report file;
Go up the tested input channel of shutoff at passage and voltage (6);
The tested input channel pattern wiring that on passage and voltage (6), resets,
The step of test of wherein carrying out each output channel of tested analog module (7) successively comprising:
The test of an output channel of beginning;
It is the voltage mode wiring that tested input channel is set;
Go up the tested output channel of connection at passage and voltage (6);
From digital multimeter (4), read the measured value of voltage signal of the tested output channel output of tested analog module (7);
Record test condition and result data are to described report file;
Go up the tested output channel of shutoff at passage and voltage (6);
The wiring of tested output channel pattern resets on passage and voltage (6).
10. automatic test approach as claimed in claim 7, wherein said current-mode test comprises step:
Tested analog module (7) is configured to current-mode;
Judgement is carried out the current-mode of the input channel of tested analog module (7) and is measured or the measurement of the current-mode of the output channel of tested analog module (7);
Measure if carry out the current-mode of input channel, then
It is current-mode that dc signal source able to programme (3) is set;
First current value to be measured is set to dc signal source able to programme (3), and controls dc signal source able to programme (3) with the output of opening dc signal source able to programme (3) and then export set current value to be measured; Carry out the test of each input channel of tested analog module (7) successively;
The output of closing dc signal source able to programme (3) is to stop to export set current value to be measured;
Judge whether it is last current value to be measured;
If judge it is not last current value to be measured, next current value to be measured then is set to dc signal source able to programme (3), and control dc signal source able to programme (3) with the output of opening dc signal source able to programme (3) and then export set current value to be measured, carry out the test of each input channel of tested analog module (7) successively; The output of closing dc signal source able to programme (3) is to stop to export set current value to be measured;
Return to judge whether it is the step of last current value to be measured, till finishing last current value to be measured;
Dc signal source able to programme (3) resets;
Measure if carry out the current-mode of output channel, then
Digital multimeter (4) is set is current-mode;
The wiring that is used for digital multimeter that is provided with on passage and the voltage (6) is a current-mode, first output current setting value all output channels to tested analog module (7) are set, carry out the test of each output channel of tested analog module 7 successively
Judge whether it is last output current setting value;
If judge it is not last output current setting value, next output current setting value all output channels to tested analog module (7) then are set, carry out the test of each output channel of tested analog module (7) successively;
Return to judge whether it is the step of last output current setting value, till finishing last current value to be measured;
0 setting value all output channels to tested analog module (7) are set;
The wiring that is used for digital multimeter on reset passages and the voltage (6);
The digital multimeter that resets (4).
11. automatic test approach as claimed in claim 10,
The testing procedure that wherein carries out each input channel of tested analog module (7) successively comprises:
The test of an input channel of beginning;
It is the current-mode wiring that tested input channel is set;
Go up the tested input channel of connection at passage and voltage (6);
From programmable logic controller (PLC), read the measurement conversion value of current signal of the tested input channel input of tested analog module (7);
Record test condition and result data are to described report file;
Go up the tested input channel of shutoff at passage and voltage (6);
The tested input channel pattern wiring that on passage and voltage (6), resets,
The step of test of wherein carrying out each output channel of tested analog module (7) successively comprising:
The test of an output channel of beginning;
It is the current-mode wiring that tested input channel is set;
Go up the tested output channel of connection at passage and voltage (6);
From digital multimeter (4), read the measured value of current signal of the tested output channel output of tested analog module (7);
Record test condition and result data are to described report file;
Go up the tested output channel of shutoff at passage and voltage (6);
The wiring of tested output channel pattern resets on passage and voltage (6).
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| CN2009101367816A CN101887111A (en) | 2009-05-15 | 2009-05-15 | System and method for automatically testing analog module used for programmable logic controller (PLC) |
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| CN2009101367816A CN101887111A (en) | 2009-05-15 | 2009-05-15 | System and method for automatically testing analog module used for programmable logic controller (PLC) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1385706A (en) * | 2001-05-16 | 2002-12-18 | 深圳市中兴通讯股份有限公司上海第二研究所 | Multi-channel high-accuracy voltage and ringing current tester |
| CN1530838A (en) * | 2003-03-14 | 2004-09-22 | 联想(北京)有限公司 | System for realizing main-board envirnoment test |
| US20050246589A1 (en) * | 2004-04-16 | 2005-11-03 | Hon Hai Precision Industry Co., Ltd | System and method for automatically testing motherboards |
| CN2773711Y (en) * | 2004-12-02 | 2006-04-19 | 上海浩顺科技有限公司 | Multifunctional standard source automatic testing system |
| CN101173963A (en) * | 2007-10-17 | 2008-05-07 | 电子科技大学 | Multifunctional tester |
| CN201122977Y (en) * | 2007-07-03 | 2008-09-24 | 施耐德电器工业公司 | Multicenter analog amount inputting module |
-
2009
- 2009-05-15 CN CN2009101367816A patent/CN101887111A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1385706A (en) * | 2001-05-16 | 2002-12-18 | 深圳市中兴通讯股份有限公司上海第二研究所 | Multi-channel high-accuracy voltage and ringing current tester |
| CN1530838A (en) * | 2003-03-14 | 2004-09-22 | 联想(北京)有限公司 | System for realizing main-board envirnoment test |
| US20050246589A1 (en) * | 2004-04-16 | 2005-11-03 | Hon Hai Precision Industry Co., Ltd | System and method for automatically testing motherboards |
| CN2773711Y (en) * | 2004-12-02 | 2006-04-19 | 上海浩顺科技有限公司 | Multifunctional standard source automatic testing system |
| CN201122977Y (en) * | 2007-07-03 | 2008-09-24 | 施耐德电器工业公司 | Multicenter analog amount inputting module |
| CN101173963A (en) * | 2007-10-17 | 2008-05-07 | 电子科技大学 | Multifunctional tester |
Cited By (32)
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Application publication date: 20101117 |