CN108693825A - The detection method and device of PLC input/output modules - Google Patents
The detection method and device of PLC input/output modules Download PDFInfo
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- CN108693825A CN108693825A CN201810366291.4A CN201810366291A CN108693825A CN 108693825 A CN108693825 A CN 108693825A CN 201810366291 A CN201810366291 A CN 201810366291A CN 108693825 A CN108693825 A CN 108693825A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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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
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1105—I-O
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Abstract
The invention discloses PLC input/output modules and detection devices, including:Compare the tested PLC input/output modules model data information selected in the PLC input/output module model data information and the first man-machine interface terminal of reading, if comparison result is consistent, according to module type, apply operating voltage in PLC input/output module power supply terminals;Compare the numerical value/signal in each channel of PLC output module and given numerical value/signal, if comparison result is unanimously or in error range, or it is sequentially output given numerical value in the output address image area of PLC output modules, each channel corresponding terminal output voltage/electric current signal of detection module, if PLC output modules only deposit output signal in error range in a channel, judgment module channel is normal;Otherwise, judge channel failure.Whether PLC input/output modules and detection device of the present invention can detect PLC input/output modules channel normal, whether there is short trouble between module channels.
Description
Technical field
The present invention relates to the detection field of PLC input/output modules more particularly to the detection sides of PLC input/output modules
Method and detection device.
Background technology
PLC (Programmable Logical Controller, programmable logic controller (PLC)) is in automation control area
In be used widely, for example, the SIMATIC S7-300 series of Siemens Company's exploitation.In actual application, to PLC
Input/output module be detected it is extremely important.
Currently, the detection of the input/output module for PLC, mostly uses greatly the institute in the input/output module of the PLC
There is channel all to apply high level signal, the signal of detection output exports situation, with judge the PLC input/output module it is logical
Road whether there is failure.
Invention content
The present invention provides PLC input/output module detection method and device, can be used for detecting PLC input/output modules logical
Whether road is normal, whether there is short trouble between module channels.
The one side of embodiment according to the present invention, this application provides a kind of PLC input/output modules detection method, packets
It includes:
The model data information of the tested PLC input/output modules is read, and is selected in a man-machine interface terminal
The model data information of the tested PLC input/output modules;
Compare selected in the model data information of the PLC input/output modules of reading and man-machine interface terminal it is tested
PLC input/output modules model data information, obtain the first comparison result;
If first comparison result is consistent, according to the type of the PLC input/output modules, inputted in the PLC defeated
The power supply terminal for going out module applies an operating voltage, and executes following steps according to the type of the PLC input/output modules:
When the input/output module is digital quantity input module:
D. c. voltage signal is sequentially input in each channel corresponding terminal of the PLC output module, reads the PLC inputs
The numerical value in each channel of the input address image area of module;Compare the numerical value and described first in each channel of reading to fixed number
Value, obtains the second comparison result;If second comparison result is consistent, judge that the channel of the PLC output module is normal;It is no
Then, judge the channel failure of the PLC output module;
When the input/output module is digital output module:
The second given numerical value is sequentially input in the output address image area of the PLC output modules, reads the PLC outputs
Each channel corresponding terminal output voltage values of module;If the PLC output modules are only in a channel, there are output end voltages, judge
The channel of the PLC output modules is normal;Otherwise, judge the channel failure of the PLC output modules;
When the input/output module is Analog input mModule:
Setting signal is sequentially input in each channel corresponding terminal of PLC output module, reads each of input address image area
The numerical value in channel;The corresponding numerical value for comparing the numerical value and the Setting signal in each channel of reading, obtains third and compares knot
Fruit;If the third comparison result in module error range, judges that the channel of the PLC output module is normal;Otherwise, judge
The channel failure of the PLC output module;
The PLC input/output modules be analog output module when, PLC output modules output address image area according to
Secondary input third gives numerical value, reads the corresponding terminal output voltage/electric current signal in each channel of PLC output modules;If institute
Stating PLC output modules, only in a channel, there are output voltage/electric current signals, and the voltage/current signals are in module error
In range, judge that the channel of the PLC output modules is normal;Otherwise, judge the channel failure of the PLC output modules;
If first comparison result is inconsistent, termination detection.
In the embodiment of the present application, the model data information of the PLC input/output modules include tested module model,
The data informations such as state and hardware configuration, pass through the contrast verification to the data information, it is ensured that tested module is being tested
Corresponding test signal is inputted in the process, and the model that operating personnel select wrong tested module is avoided to cause to damage.
According to the type of the PLC input/output modules, apply work electricity in the power supply terminal of PLC input/output modules
Pressure;The numerical value work signal and given numerical value or Setting signal for comparing each channel of the PLC output module, if comparison result is consistent
Or in error range, judge that the channel of the PLC output module is normal, otherwise, judge channel failure.By being exported in PLC
The output address image area of module is sequentially output given numerical value, detects the corresponding terminal output in each channel of PLC output modules
Voltage or current signal are sentenced if PLC output modules only deposit output voltage or current signal in error range in a channel
The channel for the PLC output module of breaking is normal, otherwise, judges channel failure.
In the embodiment of the present application, the PLC input/output modules detection method and device can detect PLC input and output
Whether module channels are normal, whether there is short trouble between module channels, and institute is omitted in avoiding PLC input/output modules from detecting
The case where stating fault point.
Optionally, it is described in each channel pair of PLC output module when the input/output module is Analog input mModule
Terminal is answered to sequentially input Setting signal, including:
It is defeated in the voltage type analog quantity when PLC input/output modules are voltage type Analog input mModule
Each channel for entering module sequentially inputs the DC voltage Setting signal of predetermined value;
It is defeated in the current type analog quantity when PLC input/output modules are current type Analog input mModule
Each channel for entering module sequentially inputs the DC current Setting signal of predetermined value;
When the PLC input/output modules are thermal resistance type simulation amount input module, in the thermal resistance type simulation
Each channel of amount input module is sequentially ingressed into the resistance of predetermined resistance value;
When the PLC input/output modules are thermocouple type Analog input mModule, simulated in the thermocouple type
Each channel of amount input module sequentially inputs the direct current millivolt signal of predetermined value.
Optionally, if the PLC input/output modules are safety-type module, if consistent in first comparison result, root
According to the type of the PLC input/output modules, the power supply terminal of the PLC input/output modules apply an operating voltage it
Afterwards, the detection method includes:
Blunt program is gone in operation, and to confirm that the PLC input/output modules state is normal, it is defeated to continue to execute the PLC inputs
Go out the security procedure of module.
Optionally, the detection method further includes:
The testing result of the PLC input/output modules is stored, and generates examining report.
The another aspect of embodiment according to the present invention, this application provides a kind of PLC input/output modules detection devices
200, the detection device includes:
Data obtaining module 210, the model data information for reading the tested PLC input/output modules, and
The model data information of the tested PLC input/output modules is selected in one man-machine interface terminal 120;
Comparison module 220, the model data information and man-machine interface of the PLC input/output modules for comparing reading
The model data information of the tested PLC input/output modules selected in terminal 120, obtains the first comparison result.
First processing module 230, if consistent for first comparison result, according to the PLC input/output modules
Type applies an operating voltage in the power supply terminal of the PLC input/output modules;And if first comparison result not
Unanimously, termination detection.
Second processing module 240, for the input/output module be digital quantity input module when, in PLC output module
Each channel corresponding terminal sequentially input the d. c. voltage signal of the first given numerical value, read the input of the PLC output module
The numerical value in each channel in address mapping area;Compare the numerical value in each channel of reading and given numerical value, obtains second and compare knot
Fruit;If second comparison result is consistent, judge that the channel of the PLC output module is normal;Otherwise, judge the PLC inputs
The channel failure of module;
The input/output module be digital output module when, PLC output modules output address image area successively
The second given numerical value is inputted, the output voltage values of each channel corresponding terminal of the PLC output modules are detected;If the PLC outputs
Module judges that the channel of the PLC output modules is normal only in a channel there are output end voltage;Otherwise, judge the PLC
The channel failure of output module;
The input/output module be Analog input mModule when, PLC output module each channel corresponding terminal successively
Setting signal is inputted, the numerical value in each channel of input address image area is read;Compare the numerical value for reading each channel and institute
The correspondence for stating Setting signal gives numerical value, obtains third comparison result;If the third comparison result in module error range,
Judge that the channel of the PLC output module is normal;Otherwise, judge the channel failure of the PLC output module;
The PLC input/output modules be analog output module when, PLC output modules output address image area according to
Secondary input third gives numerical value, reads the output voltage/electric current signal of each channel corresponding terminal of the PLC output modules;If institute
Stating PLC output modules, only in a channel terminals, there are output voltage/electric current signals, and the voltage/current signals are in module
In error range, judge that the channel of the PLC output modules is normal;Otherwise, judge the channel failure of the PLC output modules.
Optionally, the Second processing module 240 is additionally operable to:
It is defeated in the voltage type analog quantity when PLC input/output modules are voltage type Analog input mModule
Enter module each channel corresponding terminal sequentially input predetermined value DC voltage Setting signal;
It is defeated in the current type analog quantity when PLC input/output modules are current type Analog input mModule
Enter module each channel corresponding terminal sequentially input predetermined value DC current Setting signal;
When the PLC input/output modules are thermal resistance type simulation amount input module, in the thermal resistance type simulation
Each channel corresponding terminal of amount input module is sequentially ingressed into the resistance of predetermined resistance value;
When the PLC input/output modules are thermocouple type Analog input mModule, simulated in the thermocouple type
Each channel corresponding terminal of amount input module sequentially inputs the direct current millivolt Setting signal of predetermined value.
Optionally, the detection device further includes:
Blunt module 250 is gone, for when the PLC input/output modules are safety-type module, blunt program to be gone in operation, with true
Recognize that the PLC input/output modules state is normal, continues to execute the security procedure of the PLC input/output modules.
Optionally, the detection device further includes:
Memory module 260, the testing result for storing the PLC input/output modules, and generate examining report.
The another aspect of embodiment according to the present invention, this application provides a kind of PLC input/output modules detection devices
300, including:At least one processor 301, at least one processor 302, wherein:
At least one processor 301, for storing program instruction;
At least one processor 302 is executed for calling the program instruction stored in at least one processor
The detection method of PLC input/output modules described in any of the above item.
The another aspect of embodiment according to the present invention, this application provides a kind of computer readable storage mediums, thereon
Have program stored therein instruction;Described program instruction can be executed by a processor and realize that the inputs of the PLC described in any of the above item are defeated
Go out the detection method of module.
It can be seen that in the embodiment of the present invention from said program, by comparing the numerical value in each channel of PLC output module
With given numerical value/signal, if comparison result is consistent or in module error range, or the corresponding end in each channel of PLC output modules
Sub- output voltage/electric current signal, if PLC output modules are only in a channel, there are output voltage/electricity in module error range
Signal is flowed, judges that the channel of the PLC output modules is normal, otherwise, judges the channel failure of the PLC output modules.This Shen
Please technical solution whether can detect PLC input/output modules channel normal, whether there is short trouble between module channels.
Description of the drawings
The preferred embodiment of the application will be described in detail by referring to accompanying drawing below, make those skilled in the art more
The above and other feature and advantage of the application are understood, in attached drawing:
Fig. 1 is the PLC input/output module detection principle diagrams that another embodiment of the present invention provides;
Fig. 2 is the detection method flow chart of the PLC input/output modules described in one embodiment of the invention;
Fig. 3 is the structure of the detecting device schematic diagram of the PLC input/output modules described in another embodiment of the present invention;
Fig. 4 is the structural schematic diagram for the PLC input/output module detection devices that another embodiment of the present invention provides.
Wherein, reference numeral is as follows:
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Term " comprising " and " having " in description and claims of this specification and their any deformation, meaning
Figure be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment
Those of be not necessarily limited to clearly to list step or unit, but may include not listing clearly or for these processes,
The intrinsic other steps of method, product or equipment or unit.
As shown in FIG. 1, FIG. 1 is the detection principle diagrams of PLC input/output modules in one embodiment of the invention.PLC is optional
It is serial for SIMATIC S7-300, in the input/output module detection process of the PLC, it is logical to be tested PLC input/output modules 140
Cross the input and output of IM153-2 interface modules 141 and interface module 150 connecting test programmable logic controller (PLC) 130, PLC
The general connection circuit 110 of detection module and man-machine interface terminal 120.
It will be understood to those skilled in the art that Multi-way switching device is arranged in the input and output detection module 100 of PLC
Mainboard, multifunction circuit board and GU Generic Unit test circuit plate, may be implemented test module in the input and output detection circuit of PLC
The functions such as power supply, power supply overcurrent protection, thermocouple assay, thermal resistance test and security test.
Wherein, it includes that model, state and hardware are matched that test programmable logic controller (PLC) 130, which acquires tested module 140,
The data information set, and contrast verification is carried out with the related data information of the tested module of the selection in man-machine interface terminal 120,
To avoid operating personnel due to being damaged caused by the model of the wrong tested module of choosing.Test method of the present invention can ensure that test is used
PLC exports corresponding test signal according to corresponding test program to tested module 400, realizes tested PLC input and output
The detection of module 440, whether the channel to judge tested module 440 is normal, detects tested PLC input/output modules 440
Module channels between whether there is short trouble.
As shown in Fig. 2, this application provides a kind of detection method flow charts of PLC input/output modules, wherein the inspection
Survey method includes:
S01, the model data information for reading the tested PLC input/output modules, and in a man-machine interface terminal
The model data information of the tested PLC input/output modules of selection.
In the embodiment of the present application, the model data information of the PLC input/output modules include tested module model,
The data informations such as state and hardware configuration.
S02, the PLC input/output modules that compare reading model data information and man-machine interface terminal on select
The model data information of tested PLC input/output modules, obtains the first comparison result.
Wherein, the tested PLC input/output modules selected in the PLC input/output modules and man-machine interface
The data information, it is ensured that tested module inputs corresponding test signal during the test, avoids operating personnel from selecting wrong
The model of tested module causes to damage.
If S03, first comparison result are consistent, defeated in the PLC according to the type of the PLC input/output modules
The power supply terminal for entering output module applies an operating voltage, and according to the type of the PLC input/output modules, executes step
S04。
In the embodiment of the present application, since the power supply terminal of the PLC input/output modules of different model is different, described in detection
The model number of the tested PLC input/output modules selected in the model data information of PLC input/output modules and man-machine interface
It is believed that after breath is consistent, the corresponding process flow of PLC input/output modules of respective model is selected.Meanwhile according to the tested PLC
The model type of input/output module applies an operating voltage in corresponding power supply terminal.
Wherein, in the embodiment of the present application, the operating voltage can be to be arranged in the PLC input/output modules feeder ear
24V DC voltages on son, in order to the further detection of tested module.
When S04, the input/output module are digital quantity input module:
D. c. voltage signal is sequentially input in each channel corresponding terminal of the PLC output module, reads the PLC inputs
The numerical value in each channel of the input address image area of module;Compare the numerical value and described first in each channel of reading to fixed number
Value, obtains the first comparison result;If first comparison result is consistent, judge that the channel of the PLC output module is normal;It is no
Then, judge the channel failure of the PLC output module;
When the PLC input/output modules are digital output module:
Third is sequentially input in the output address image area of PLC output modules and gives numerical value, reads the PLC output modules
Each channel corresponding terminal output voltage values;If the PLC output modules are only in a channel there are output end voltage, described in judgement
The channel of PLC output modules is normal;Otherwise, judge the channel failure of the PLC output modules;
When the input/output module is Analog input mModule:
Setting signal is sequentially input in each channel corresponding terminal of PLC output module, reads each of input address image area
The numerical value in channel;The corresponding numerical value for comparing the numerical value and the Setting signal in each channel of reading, obtains third and compares knot
Fruit;If the third comparison result in module error range, judges that the channel of the PLC output module is normal;Otherwise, judge
The channel failure of the PLC output module;
When the PLC input/output modules are analog output module:
Third is sequentially input in the output address image area of PLC output modules and gives numerical value, reads the PLC output modules
The corresponding terminal output voltage/electric current signal in each channel;If the PLC output modules only a channel there are output voltage/
Current signal, and the voltage/current signals judge that the channel of the PLC output modules is normal in module error range;It is no
Then, judge the channel failure of the PLC output modules.
In the embodiment of the present application, if the PLC input/output modules are safety-type module, the type module is being carried out
It needs first to run blunt program when detection, to confirm that the PLC input/output modules state is normal, and continues to execute the PLC
The security procedure of input/output module.
The PLC output module, which is digital quantity input module, can be divided into digital quantity input/output module and analog input
Output module.Further, the digital quantity input/output module is further divided into digital quantity input module and digital output
Module;Analog input and output module can be divided into:Voltage type Analog input mModule, current type analog input mould
Block, thermal resistance type simulation amount input module, thermocouple type Analog input mModule and analog output module.
For the detection of digital quantity input module, mainly pass through the correspondence in each channel of the digital quantity input module
Terminal sequentially inputs d. c. voltage signal.Such as the d. c. voltage signal of 24V, further read the digital quantity input module
The numerical value in each channel of input address image area, to judge each channel numerical value of the digital quantity input module and given numerical value one
Cause is the normal digital quantity input module in channel;Conversely, being then channel failure module.It should be noted that described give fixed number
Value is each channel that the input address image of each channel of digital quantity input module digital quantity input module under normal circumstances is gone
Numerical value.
For the detection of digital output module, mainly the output address image area of the digital output module according to
Secondary output gives numerical value, such as the high level signal of output direct current 24V, further reads each channel pair of PLC output modules
Answer terminal output voltage values.By verify the digital output module whether only in a channel there are output voltage, into
One step judges the channel abnormal situation of the digital output module.Wherein, when the digital output module is only led at one
There are output voltage in road, illustrate that each channel of the digital output module is normal, conversely, judging the digital output module
Channel failure.
In the embodiment of the present application, it is described in PLC output module when the input/output module is Analog input mModule
Each channel corresponding terminal sequentially input Setting signal, include mainly:
It is defeated successively in each channel of the voltage type Analog input mModule for voltage type Analog input mModule
Enter the DC voltage Setting signal of predetermined value.Wherein, the DC voltage of the predetermined value may include:0V,2.5V,5V,
The DC voltages such as 7.5V, 10V.
It is defeated successively in each channel of the current type Analog input mModule for current type Analog input mModule
Enter the DC current Setting signal of predetermined value.Wherein, the DC current of the predetermined value may include:0mA,5mA,10mA
Equal DC currents.
For thermal resistance type simulation amount input module, each channel of the thermal resistance type simulation amount input module according to
The resistance of the secondary predetermined resistance value of access.Wherein, the resistance of the predetermined resistance value includes the resistance of a certain number of 100 Ω.
For thermocouple type Analog input mModule, each channel of the thermocouple type Analog input mModule according to
The direct current millivolt signal of secondary input predetermined value.Wherein, the direct current millivolt signal of the predetermined value includes the voltages such as 5mV, 8mV
Signal.
In the present embodiment, when the PLC input/output modules are analog output module, in the output of PLC output modules
Address mapping area sequentially inputs third and gives numerical value, wherein and it can be the voltage signals such as 0V, 2.5V that the third, which gives numerical value,
Read the corresponding terminal output voltage signal in each channel of PLC output modules;If the PLC output modules are only in a channel
There are output voltage signals, and the voltage signal is judging the channel of the PLC output modules just in module error range
Often;Otherwise, judge the channel failure of the PLC output modules.
It is understood that it may be including voltage signal, current signal that third, which gives numerical value, in the application
Other signals herein and are not limited.
If S05, first comparison result are inconsistent, termination detection.
In the embodiment of the present application, if selected in the model data information of PLC input/output modules and man-machine interface
The model data information of tested PLC input/output modules is inconsistent, then directly terminates the inspection of the PLC input/output modules
It surveys, avoids damage module.
It should be noted that in order to improve the accuracy and confidence level of the detection of PLC input/output modules, for the PLC
The detection of input/output module needs to carry out multiplicating detection.For example, the repetition for being repeated 5 times~10 times can be taken to detect
Process.
Certainly, it in detection process, can also be directed at the testing result for storing the PLC input/output modules
Reason, and generate examining report.
As shown in figure 3, this application provides the structure of the detecting device of the PLC input/output modules described in another embodiment
Schematic diagram.In Fig. 3, the detection device 200 of the PLC input/output modules includes:Data obtaining module 210, comparison module
220, first processing module 230, Second processing module 240, go blunt module 250 and memory module 260.
Data obtaining module 210, the model data information for reading the tested PLC input/output modules, and
The model data information of the tested PLC input/output modules is selected in one man-machine interface terminal 120.
In the embodiment of the present application, data obtaining module 210 reads the model number of the tested PLC input/output modules
It is believed that breath includes data informations such as model, state and hardware configuration etc..
Comparison module 220, the model data information and man-machine interface of the PLC input/output modules for comparing reading
The model data information of the tested PLC input/output modules selected in terminal 120, obtains the first comparison result.
In the embodiment of the present application, comparison module 220 by comparing the PLC input/output modules model data information
Believe with data such as tested model, state and the hardware configurations of PLC input/output modules that are selected in man-machine interface terminal 120
Breath, obtains a comparison result, to further realize the Data Detection of tested PLC input/output modules.
First processing module 230, if consistent for first comparison result, according to the PLC input/output modules
Type applies an operating voltage in the power supply terminal of the PLC input/output modules;And if first comparison result not
Unanimously, termination detection.
In the embodiment of the present application, first processing module 230 is set, according to the comparison result of comparison module 220, further
Determination is termination detection, also or, the corresponding power supply terminal in module to be measured applies an operating voltage assisted, so as to described to be measured
The further detection of module.Wherein, the operating voltage of the auxiliary can be the 24V voltages of direct current, or according to reality
Other operating voltages needed are tested, herein and are not limited.
Second processing module 240, for the input/output module be digital quantity input module when, in PLC output module
Each channel corresponding terminal sequentially input the d. c. voltage signal of the first given numerical value, read the input of the PLC output module
The numerical value in each channel in address mapping area;Compare the numerical value in each channel of reading and given numerical value, obtains second and compare knot
Fruit;If second comparison result is consistent, judge that the channel of the PLC output module is normal;Otherwise, judge the PLC inputs
The channel failure of module;
The input/output module be digital output module when, PLC output modules output address image area successively
The second given numerical value is inputted, the output voltage values of each channel corresponding terminal of the PLC output modules are detected;If the PLC outputs
Module judges that the channel of the PLC output modules is normal only in a channel there are output end voltage;Otherwise, judge the PLC
The channel failure of output module;
The input/output module be Analog input mModule when, PLC output module each channel corresponding terminal successively
Setting signal is inputted, the numerical value in each channel of input address image area is read;Compare numerical value and the institute in each channel of reading
The correspondence for stating Setting signal gives numerical value, obtains third comparison result;If the third comparison result in module error range,
Judge that the channel of the PLC output module is normal;Otherwise, judge the channel failure of the PLC output module;
The PLC input/output modules be analog output module when, PLC output modules output address image area according to
Secondary input third gives numerical value, reads the output voltage/electric current signal of each channel corresponding terminal of the PLC output modules;If institute
Stating PLC output modules, only in a channel terminals, there are output voltage/electric current signals, and the voltage/current signals are in module
In error range, judge that the channel of the PLC output modules is normal;Otherwise, judge the channel failure of the PLC output modules.
In the embodiment of the present application, the Second processing module 240 is additionally operable to:
It is defeated in the voltage type analog quantity when PLC input/output modules are voltage type Analog input mModule
Enter module each channel corresponding terminal sequentially input predetermined value DC voltage Setting signal.According to actual test modular type
Number difference, during the test, the DC voltage of the predetermined value may include:0V, 2.5V, 5V, 7.5V, 10V etc. are straight
Galvanic electricity pressure.
It is defeated in the current type analog quantity when PLC input/output modules are current type Analog input mModule
Enter module each channel corresponding terminal sequentially input predetermined value DC current Setting signal.Carrying out current mode analog quantity
In the detection process of input module, may include in the DC current signal for the predetermined value that its each channel corresponding terminal inputs:
The DC currents such as 0mA, 5mA, 10mA.
When the PLC input/output modules are thermal resistance type simulation amount input module, in the thermal resistance type simulation
Each channel corresponding terminal of amount input module is sequentially ingressed into the resistance of predetermined resistance value.Carrying out resistor-type Analog input mModule
In detection process, the resistance of the predetermined resistance value includes the resistance of a certain number of 100 Ω, such as 5~10.
When the PLC input/output modules are thermocouple type Analog input mModule, simulated in the thermocouple type
Each channel corresponding terminal of amount input module sequentially inputs the direct current millivolt Setting signal of predetermined value.Carrying out thermocouple pattern
In the detection process of analog quantity input module, the direct current millivolt signal of the predetermined value includes the voltage signals such as 5mV, 8mV.
It should be noted that the number of the resistance of the DC voltage of the specific predetermined value, DC current and predetermined resistance value
Value can further be adjusted according to actual tests demand, herein and be not limited.
Blunt module 250 is gone, for when the PLC input/output modules are safety-type module, blunt program to be gone in operation, with true
Recognize that the PLC input/output modules state is normal, continues to execute the security procedure of the PLC input/output modules.
In the embodiment of the present application, it goes the execution of blunt module 250 to go blunt program, is peace convenient for the PLC input/output modules
Data Detection when full property module.
Memory module 260, the testing result for storing the PLC input/output modules, and generate examining report.
In the embodiment of the present application, setting memory module 260 is used for after the completion of the PLC input/output modules detect, right
The testing result of the PLC input/output modules is handled, and generates examining report.
Fig. 4 is the structural schematic diagram for the PLC input/output module detection devices that another embodiment of the present invention provides.Such as Fig. 4
Shown, PLC input/output modules detection device 300 shown in Fig. 4 includes:At least one processor 301, processor 302.It is described
At least one processor 301, for storing computer program;At least one processor 302, for calling described at least one
The computer program stored in a memory executes the log processing method described in any of the above item.Each group in terminal 300
Part is coupled by bus system 303.It is understood that bus system 303 is for realizing the connection communication between these components.
Bus system 303 further includes power bus, controlling bus and status signal bus in addition in addition to including data/address bus.But in order to
For the sake of clear explanation, various buses are all designated as bus system 303 in figure 3.
It is appreciated that the memory 301 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
Both or may include volatile and non-volatile memory.Wherein, nonvolatile memory can be read-only memory (Read-
OnlyMemory, ROM), programmable read only memory (ProgrammableROM, PROM), Erasable Programmable Read Only Memory EPROM
(ErasablePROM, EPROM), electrically erasable programmable read-only memory (ElectricallyEPROM, EEPROM) dodge
It deposits.Volatile memory can be random access memory (RandomAccessMemory, RAM), and it is slow to be used as external high speed
It deposits.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static RAM
(StaticRAM, SRAM), dynamic random access memory (DynamicRAM, DRAM), Synchronous Dynamic Random Access Memory
(SynchronousDRAM, SDRAM), double data speed synchronous dynamic RAM (DoubleDataRate
SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links
Dynamic random access memory (SynchlinkDRAM, SLDRAM) and direct rambus random access memory
(DirectRambusRAM, DRRAM).The memory 301 of the system and method for description of the embodiment of the present invention is intended to
In the memory of these and any other suitable type.
In some embodiments, memory 301 stores following element, executable modules or data structures, or
Their subset of person or their superset:Operating system 3011 and application program 3012.
Wherein, operating system 3011, including various system programs, such as ccf layer, core library layer, driving layer etc., are used for
Realize various basic businesses and the hardware based task of processing.Application program 3012, including various application programs, such as media
Player (MediaPlayer), browser (Browser) etc., for realizing various applied business.Realize embodiment of the present invention side
The program of method may be embodied in application program 3012.
In embodiments of the present invention, by the program for calling memory 301 to store or instruction, specifically, can be application
The program stored in program 3012 or instruction, processor 302 can execute the method performed by above-mentioned log processing device.
The method that the embodiments of the present invention disclose can be applied in processor 302, or be realized by processor 302.
Processor 302 may be a kind of IC chip, the processing capacity with signal.During realization, the above method it is each
Step can be completed by the integrated logic circuit of the hardware in processor 302 or the instruction of software form.Above-mentioned processing
Device 301 can be general processor, digital signal processor (DigitalSignalProcessor, DSP), application-specific integrated circuit
(ApplicationSpecific IntegratedCircuit, ASIC), ready-made programmable gate array
(FieldProgrammableGateArray, FPGA) either other programmable logic device, discrete gate or transistor logic
Device, discrete hardware components.It may be implemented or execute disclosed each method, step and the logical box in the embodiment of the present invention
Figure.General processor can be microprocessor or the processor can also be any conventional processor etc..In conjunction with the present invention
The step of method disclosed in embodiment, can be embodied directly in hardware decoding processor and execute completion, or use decoding processor
In hardware and software module combination execute completion.Software module can be located at random access memory, and flash memory, read-only memory can
In the storage medium of this fields such as program read-only memory or electrically erasable programmable memory, register maturation.The storage
Medium is located at memory 302, and processor 301 reads the information in memory 302, and the step of the above method is completed in conjunction with its hardware
Suddenly.
It is understood that the embodiment of the present invention description these embodiments can use hardware, software, firmware, middleware,
Microcode or combinations thereof is realized.For hardware realization, processing unit may be implemented in one or more application-specific integrated circuits
(ApplicationSpecificIntegratedCircuits, ASIC), digital signal processor
(DigitalSignalProcessing, DSP), digital signal processing appts (DSPDevice, DSPD), programmable logic device
(ProgrammableLogicDevice, PLD), field programmable gate array (Field-ProgrammableGateArray,
FPGA), general processor, controller, microcontroller, microprocessor, other electronics lists for executing function of the present invention
In member or combinations thereof.
For software implementations, can by execute the embodiment of the present invention described in function module (such as process, function etc.) come
Realize the technology described in the embodiment of the present invention.Software code is storable in memory and is executed by processor.Memory can
With portion realizes in the processor or outside the processor.
In the present embodiment, processor 302 is specifically used for:
The model data information of the tested PLC input/output modules is read, and is selected in a man-machine interface terminal
The model data information of the tested PLC input/output modules;
Compare selected in the model data information of the PLC input/output modules of reading and man-machine interface terminal it is tested
The PLC input/output modules model data information, obtain the first comparison result;
If the comparison result is consistent, according to the type of the PLC input/output modules, in the PLC input and output mould
The power supply terminal of block applies an operating voltage, and executes following steps according to the type of the PLC input/output modules:
When the input/output module is digital quantity input module, in each channel corresponding terminal of the PLC output module
D. c. voltage signal is sequentially input, the numerical value in each channel of the input address image area of the PLC output module is read;Compare reading
The numerical value in each channel taken and the described first given numerical value, obtain the second comparison result;If second comparison result one
It causes, judges that the channel of the PLC output module is normal;Otherwise, judge the channel failure of the PLC output module;
The PLC input/output modules be digital output module when, PLC output modules output address image area according to
The second given numerical value of secondary input, reads each channel corresponding terminal output voltage values of the PLC output modules;If the PLC outputs
Module judges that the channel of the PLC output modules is normal only in a channel there are output end voltage;Otherwise, judge the PLC
The channel failure of output module;
When the input/output module is Analog input mModule, in each channel corresponding terminal of the PLC output module
Setting signal is sequentially input, the numerical value in each channel of input address image area is read;Compare the numerical value in each channel and gives
Numerical value obtains a comparison result;If the comparison result in module error range, judges the channel of the PLC output module
Normally;Otherwise, judge the channel failure of the PLC output module;Or
The input/output module be analog output module when, PLC output modules output address image area successively
Output gives numerical value, reads the corresponding terminal output voltage/electric current signal in each channel of PLC output modules;If the PLC is defeated
Go out module only in a channel there are output voltage/electric current signal, and the voltage/current signals are in module error range,
Judge that the channel of the PLC output modules is normal;Otherwise, judge the channel failure of the PLC output modules;
If first comparison result is inconsistent, termination detection.
Optionally, processor 302 is additionally operable to:The input/output module be analog input and output module when, it is described
Each channel corresponding terminal of PLC output module sequentially inputs Setting signal, including:
It is defeated in the voltage type analog quantity when PLC input/output modules are voltage type Analog input mModule
Each channel for entering module sequentially inputs the DC voltage Setting signal of predetermined value;
It is defeated in the current type analog quantity when PLC input/output modules are current type Analog input mModule
Each channel for entering module sequentially inputs the DC current Setting signal of predetermined value;
When the PLC input/output modules are thermal resistance type simulation amount input module, in the thermal resistance type simulation
Each channel of amount input module is sequentially ingressed into the resistance of predetermined resistance value;
When the PLC input/output modules are thermocouple type Analog input mModule, simulated in the thermocouple type
Each channel of amount input module sequentially inputs the direct current millivolt signal of predetermined value.
Optionally, processor 302 is additionally operable to:Blunt program is gone in operation, to confirm the PLC input/output modules state just
Often, the security procedure of the PLC input/output modules is continued to execute.
Optionally, processor 302 is additionally operable to:
The testing result of the PLC input/output modules is stored, and generates examining report.
Those of ordinary skill in the art may realize that the embodiment in conjunction with disclosed in the embodiment of the present invention describes each
Exemplary unit and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These
Function is implemented in hardware or software actually, depends on the specific application and design constraint of technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize the embodiment of above-mentioned PLC input/output modules detection method when being executed by processor
Each process, and identical technique effect can be reached, to avoid repeating, which is not described herein again.Wherein, the computer can
Storage medium is read, such as read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random
Access Memory, abbreviation RAM), magnetic disc or CD etc..
It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is
The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In embodiment provided by the present invention, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit
It connects, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes:USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can to store program code
Medium.
It should be appreciated that although this specification describes according to various embodiments, not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solutions in the various embodiments may also be suitably combined for bright book, and forming those skilled in the art can be with
The other embodiment of understanding.
The series of detailed descriptions listed above is illustrated only for possible embodiments of the invention,
They are all without departing from equivalent embodiments made by technical spirit of the present invention or change not to limit the scope of the invention
More, it such as the combination of feature, segmentation or repetition, should all be included in the protection scope of the present invention.
Claims (10)
- The detection method of 1.PLC input/output modules, which is characterized in that the detection method includes:The model data information of the tested PLC input/output modules is read, and selects to be tested in a man-machine interface terminal The PLC input/output modules model data information;Compare the tested institute selected in the model data information and man-machine interface terminal of the PLC input/output modules of reading The model data information for stating PLC input/output modules, obtains the first comparison result;If first comparison result is consistent, according to the type of the PLC input/output modules, in the PLC input and output mould The power supply terminal of block applies an operating voltage, and executes following steps according to the type of the PLC input/output modules:When the PLC input/output modules are digital quantity input module,The d. c. voltage signal of the first given numerical value is sequentially input in each channel corresponding terminal of the PLC output module, is read The numerical value in each channel of the input address image area of the PLC output module;Compare numerical value and the institute in each channel of reading The first given numerical value is stated, the second comparison result is obtained;If second comparison result is consistent, the PLC output module is judged Channel is normal;Otherwise, judge the channel failure of the PLC output module;When the PLC input/output modules are digital output module,The second given numerical value is sequentially input in the output address image area of the PLC output modules, reads the PLC output modules Each channel corresponding terminal output voltage values;If the PLC output modules are only in a channel there are output end voltage, described in judgement The channel of PLC output modules is normal;Otherwise, judge the channel failure of the PLC output modules;When the PLC input/output modules are Analog input mModule,Setting signal is sequentially input in each channel corresponding terminal of PLC output module, reads each channel of input address image area Numerical value;The corresponding numerical value for comparing the numerical value and the Setting signal in each channel of reading, obtains third comparison result;If The third comparison result judges that the channel of the PLC output module is normal in module error range;Otherwise, described in judgement The channel failure of PLC output module;When the PLC input/output modules are analog output module,Third is sequentially input in the output address image area of PLC output modules and gives numerical value, and it is each logical to read the PLC output modules The corresponding terminal output voltage/electric current signal in road;If the PLC output modules are only in a channel, there are output voltage/electric currents Signal, and the voltage/current signals judge that the channel of the PLC output modules is normal in module error range;Otherwise, Judge the channel failure of the PLC output modules;If first comparison result is inconsistent, termination detection.
- 2. the detection method of PLC input/output modules according to claim 1, which is characterized in that the PLC input and output mould When block is Analog input mModule, each channel corresponding terminal in PLC output module sequentially inputs Setting signal, including:When the PLC input/output modules are voltage type Analog input mModule, in the voltage type analog input mould Each channel of block sequentially inputs the DC voltage Setting signal of predetermined value;When the PLC input/output modules are current type Analog input mModule, in the current type analog input mould Each channel of block sequentially inputs the DC current Setting signal of predetermined value;It is defeated in the thermal resistance type simulation amount when PLC input/output modules are thermal resistance type simulation amount input module Each channel for entering module is sequentially ingressed into the resistance of predetermined resistance value;It is defeated in the thermocouple type analog quantity when PLC input/output modules are thermocouple type Analog input mModule Each channel for entering module sequentially inputs the direct current millivolt signal of predetermined value.
- 3. the detection method of PLC input/output modules according to claim 1, which is characterized in that if the PLC input and output Module is safety-type module, if consistent in first comparison result, according to the type of the PLC input/output modules, in institute After power supply terminal one operating voltage of application for stating PLC input/output modules, the detection method includes:Blunt program is gone in operation, to confirm that the PLC input/output modules state is normal, continues to execute the PLC input and output mould The security procedure of block.
- 4. the detection method of PLC input/output modules according to claim 1, which is characterized in that the detection method is also Including:The testing result of the PLC input/output modules is stored, and generates examining report.
- The detection device (200) of 5.PLC input/output modules, which is characterized in that the detection device includes:Data obtaining module (210), the model data information for reading the tested PLC input/output modules, and from one Man-machine interface terminal (120) receives the model data information of the selected tested PLC input/output modules;Comparison module (220), the model data information and man-machine interface of the PLC input/output modules for comparing reading are whole The model data information for holding the tested PLC input/output modules of selection on (120), obtains the first comparison result;First processing module (230), if consistent for first comparison result, according to the class of the PLC input/output modules Type applies an operating voltage in the power supply terminal of the PLC input/output modules;And if first comparison result differs It causes, termination detection;Second processing module (240), for the input/output module be digital quantity input module when, in PLC output module Each channel corresponding terminal sequentially inputs the d. c. voltage signal of the first given numerical value, with reading the input of the PLC output module The numerical value in each channel of location image area;The numerical value and the described first given numerical value for comparing each channel of reading, obtain second Comparison result;If second comparison result is consistent, judge that the channel of the PLC output module is normal;Otherwise, described in judgement The channel failure of PLC output module;When the input/output module is digital output module, sequentially input in the output address image area of PLC output modules Second given numerical value detects the output voltage values of each channel corresponding terminal of the PLC output modules;If the PLC output modules Only judge that the channel of the PLC output modules is normal there are output end voltage in a channel;Otherwise, judge the PLC outputs The channel failure of module;When the input/output module is Analog input mModule, sequentially input in each channel corresponding terminal of PLC output module Setting signal reads the numerical value in each channel of input address image area;Compare the numerical value in each channel of reading with it is described to The correspondence for determining signal gives numerical value, obtains third comparison result;If the third comparison result in module error range, judges The channel of the PLC output module is normal;Otherwise, judge the channel failure of the PLC output module;It is defeated successively in the output address image area of PLC output modules when the PLC input/output modules are analog output module Enter third and give numerical value, reads the output voltage/electric current signal of each channel corresponding terminal of the PLC output modules;If the PLC Only in a channel terminals, there are output voltage/electric current signals for output module, and the voltage/current signals are in module error model In enclosing, judge that the channel of the PLC output modules is normal;Otherwise, judge the channel failure of the PLC output modules.
- 6. the detection device (200) of PLC input/output modules according to claim 5, which is characterized in that the second processing Module (240) is additionally operable to:When the PLC input/output modules are voltage type Analog input mModule, in the voltage type analog input mould Each channel corresponding terminal of block sequentially inputs the Setting signal of the DC voltage of predetermined value;When the PLC input/output modules are current type Analog input mModule, in the current type analog input mould Each channel corresponding terminal of block sequentially inputs the Setting signal of the DC current of predetermined value;It is defeated in the thermal resistance type simulation amount when PLC input/output modules are thermal resistance type simulation amount input module Each channel corresponding terminal for entering module is sequentially ingressed into the resistance of predetermined resistance value;It is defeated in the thermocouple type analog quantity when PLC input/output modules are thermocouple type Analog input mModule Each channel corresponding terminal for entering module sequentially inputs the direct current millivolt Setting signal of predetermined value.
- 7. the detection device (200) of PLC input/output modules according to claim 5, which is characterized in that the detection device Further include:Blunt module (250) is gone, for when the PLC input/output modules are safety-type module, blunt program to be gone in operation, with confirmation The PLC input/output modules state is normal, continues to execute the security procedure of the PLC input/output modules.
- 8. the detection device (200) of PLC input/output modules according to claim 5, which is characterized in that the detection dress It sets and further includes:Memory module (260), the testing result for storing the PLC input/output modules, and generate examining report.
- The detection device (300) of 9.PLC input/output modules, which is characterized in that including:At least one processor (301), at least One processor (302), wherein:At least one processor (301), for storing program instruction;At least one processor (302) executes such as calling the program instruction stored in at least one processor The detection method of PLC input/output modules any one of Claims 1-4.
- 10. computer readable storage medium is stored thereon with program instruction;It is characterized in that, described program instruction can be by one Processor executes and realizes the detection method of PLC input/output modules according to any one of claims 1 to 4.
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| CN111061660A (en) * | 2019-12-31 | 2020-04-24 | 浙江中控技术股份有限公司 | Calibration equipment and system for input/output (I/O) module |
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