CN203287492U - Test board for testing X121 input/output port of numeric control unit - Google Patents

Test board for testing X121 input/output port of numeric control unit Download PDF

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Publication number
CN203287492U
CN203287492U CN2013201933011U CN201320193301U CN203287492U CN 203287492 U CN203287492 U CN 203287492U CN 2013201933011 U CN2013201933011 U CN 2013201933011U CN 201320193301 U CN201320193301 U CN 201320193301U CN 203287492 U CN203287492 U CN 203287492U
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test
input
handwheel
signaling interface
interface
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管华明
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Siemens Factory Automation Engineering Ltd
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Siemens Factory Automation Engineering Ltd
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Abstract

The utility model provides a test board for testing an X121 input/output port of a numeric control unit. The test board comprises a digital quantity input signal interface test module, a measuring head signal interface test module and a digital quantity output signal interface and handwheel signal interface test module, wherein in the digital quantity output signal interface and handwheel signal interface test module, digital quantity output signals serve as input signals for testing handwheel signal interfaces. According to the test board in the utility model, testing functions for digital quantity input signal interfaces, measuring head signal interfaces, digital quantity output signal interfaces and handwheel signal interfaces of the X121 port are integrated in one circuit board, so that wiring types and wiring numbers required by the X121 port are greatly simplified; besides, the digital quantity output signals are utilized as the test input signals for testing the handwheel signal interfaces, so that corresponding test devices used for testing the handwheel signal interfaces are reduced.

Description

The test board that is used for the X121 input/output port of test digital control unit
Technical field
The utility model relates to automation field, particularly a kind of test board of the X121 input/output port for the test digital control unit.
Background technology
SINUMERIK840D is a kind of digital control system of Siemens Company, and the digital control unit of this digital control system (Numeric Control Unit, NCU) is the core control part of this system.X121 port in this NCU is its main input and output (I/O) port, and table 1 is the part sectional drawing of NCU function handbook, wherein shows each pin function definition of X121 port.As shown in table 1, the corresponding signaling interface of these pins comprises: 4 digital quantity input signal interface (INPUT0-3, corresponding pin 5-8), 4 digital quantity output signal interface (OUTPUT0-3, corresponding pin 3-4,22-23), two measuring head signaling interface (MEPUS0-1, corresponding pin 9,28), and two groups of handwheel signaling interfaces (MPG0-1, corresponding pin 11-14,30-33 and pin one 5-18,34-37 are two groups respectively, every group of corresponding 1 group of handwheel signal of 8 pins) etc.
Figure DEST_PATH_GDA0000369392850000021
Table 1
Need the X121 port of NCU is tested, to determine the normal of each signal input/output function in user's use or maintenance process.In the conventionally test method, digital quantity input signal interface is connected with the measuring head signaling interface by a switch connection+24V power supply, then by NCU, reads the state of input signal, judges whether digital quantity input signal interface and measuring head signaling interface be normal.For the digital output signaling interface, usually can connect a relay or a pilot lamp, then judge with corresponding control bit set and by the state of exporting whether the digital output signaling interface is normal in NCU.
But, often cumbersome for the test of handwheel signaling interface.In the conventionally test method, as shown in Figure 1, need to configure the equipment such as handheld unit (Handheld Unit), distributor disk (Distribution Box) and cable distributor disk (Cable Distributor) during test handwheel signaling interface.In test process, need handheld unit is connected to distributor disk, distributor disk is connected to the cable distributor disk by cable, then the cable distributor disk is inserted on the X121 port of NCU.At this moment, rotate the handwheel on handheld unit, just can read the changing value of handwheel rotation by the relevant parameter in NCU, whether normal with the handwheel signaling interface that judges the X121 port.
This shows, for the traditional test technology of the X121 port of NCU, have following defect:
1, due to the equal more than a kind of model of the handheld unit that is used for the test of handwheel signaling interface and distributor disk, if the type selecting mistake just there will be the situation that can't connect, type selecting again accidentally; The expensive testing apparatus itself that is used for the test of handwheel signaling interface has also been brought no small pressure to testing cost;
2, as a multi-functional input/output port, all many to the needed wiring type of the test of the various functions of X121 port and quantity, this has increased the probability of makeing mistakes, and has reduced testing efficiency, and has brought safely hidden danger for test site.
The utility model content
In view of this, the purpose of this utility model is to propose a kind of measuring technology of X121 input/output port of new test digital control unit, reduce the testing apparatus that is used for the test of handwheel signaling interface, simplify required wiring type and the wiring quantity of X121 input/output port test, thereby improve testing efficiency and test accuracy.
According to an aspect of the present utility model, a kind of test board of the X121 input/output port for the test digital control unit is provided, described test board comprises: digital quantity input signal interface testing module is used for testing the digital quantity input signal interface of described X121 input/output port; Measuring head signaling interface test module, be used for testing the measuring head signaling interface of described X121 input/output port; And digital output signaling interface and handwheel signaling interface test module, be used for testing digital output signaling interface and the handwheel signaling interface of described X121 input/output port, wherein, in described digital output signaling interface and handwheel signaling interface test module, with the digital output signal as the Test input signal that is used for test handwheel signaling interface.
Preferably, in described digital quantity input signal interface testing module, an end connection+24V positive source of a switch, the other end is used for connecting 4 digital quantity input signal interfaces of described X121 input/output port.
Preferably, in described measuring head signaling interface test module, an end connection+24V positive source of a switch, the other end is used for connecting 2 measuring head signaling interfaces of described X121 input/output port.
Preferably, described digital output signaling interface comprises that with handwheel signaling interface test module 4 roads walk abreast and the identical test circuit of circuit structure, described 4 drive tests examinations circuit are in 4 digital quantity output signal interfaces of corresponding described X121 input/output port respectively, and all with the Test input signal of the output signal of this test circuit as two groups of handwheel signaling interfaces for testing described X121 input/output port.
preferably, each road of described 4 drive test examination circuit includes a circuit in parallel, described parallel circuit comprises two branch roads in parallel, one of them branch road comprises one first resistance and a LED, another branch road comprises one second resistance and one the 3rd resistance, one end of described parallel circuit is connected with the earth terminal of+24V power supply, the other end is used for connecting one of them digital output signaling interface of described X121 input/output port, wherein, draw an output terminal between described the second resistance and described the 3rd resistance, the digital output signal is carried out after electric resistance partial pressure Test input signal as the described two groups of handwheel signaling interfaces of test.
Whether preferably, described test board further comprises a power monitoring module, normal for detection of the power supply of described test board.
Preferably, described power monitoring module is embodied as the LED that is connected with power supply.
Preferably, described test board further comprises an X121 interface module, and described X121 interface module provides corresponding to the function wiring of each pin on described X121 input/output port and port direct and described X121 input/output port integrated connection.
Can find out from such scheme, the test board that is used for the X121 input/output port of test digital control unit in the utility model is integrated into a circuit board with prior art for the test function of digital quantity input signal interface, measuring head signaling interface, digital output signaling interface and the handwheel signaling interface of X121 port, has greatly simplified required wiring type and the wiring quantity of X121 input/output port test; And this test board utilizes the digital output signal as the Test input signal that is used for test handwheel signaling interface, reduced the corresponding testing apparatus that is used for the test of handwheel signaling interface.In addition,, because the circuit of this test board is extremely simple, select the most cheap single face general purpose board just can make, this greatly reduces testing cost.
Description of drawings
Below will the person of ordinary skill in the art is more clear that above-mentioned and other feature and advantage of the present utility model by with reference to accompanying drawing, describing preferred embodiment of the present utility model in detail, in accompanying drawing:
Fig. 1 is the device connection diagram of the handwheel signaling interface of test X121 port in prior art;
Fig. 2 is the functional block diagram of X121 port test plate in embodiment of the utility model;
Fig. 3 is the circuit diagram of the digital quantity input signal interface testing module of the utility model test board;
Fig. 4 is the circuit diagram of the measuring head signaling interface test module of the utility model test board;
Fig. 5 is the digital output signaling interface of the utility model test board and the circuit diagram of handwheel signaling interface test module;
Fig. 6 is the oscillogram of digital output signal in the utility model;
Fig. 7 is the functional block diagram of X121 port test plate in another embodiment of the utility model.
Embodiment
, for making the purpose of this utility model, technical scheme and advantage clearer, by the following examples the utility model is further described.
A kind of test board of the X121 input/output port for the test digital control unit is provided in embodiment of the present utility model.As shown in Figure 2, this test board 1 is connected to the X121 port 2 of NCU, and this test board 1 specifically comprises: digital quantity input signal interface testing module 11 is used for testing the digital quantity input signal interface of X121 input/output port; Measuring head signaling interface test module 12, be used for testing the measuring head signaling interface of X121 input/output port; Digital output signaling interface and handwheel signaling interface test module 13, the digital output signaling interface and the handwheel signaling interface that are used for test X121 input/output port, wherein, in digital output signaling interface and handwheel signaling interface test module 13, with the digital output signal as the Test input signal that is used for test handwheel signaling interface.
According to above-mentioned embodiment introduction as can be known, this test board is integrated into the test function for digital quantity input signal interface, measuring head signaling interface, digital output signaling interface and the handwheel signaling interface of X121 port in prior art on a circuit board, has greatly simplified required wiring type and the wiring quantity of X121 input/output port test; And this test board utilizes the digital output signal as the input signal that is used for test handwheel signaling interface, reduced the corresponding testing apparatus that is used for the test of handwheel signaling interface.In addition,, because the circuit of this test board is extremely simple, select the most cheap single face general purpose board just can make, this greatly reduces testing cost.
Below just introduce respectively the specific implementation of each functional module of test board in this embodiment.
As shown in Figure 3, in digital quantity input signal interface testing module 11, an end connection+24V positive source (P24EXT) of a switch (S1), the other end can connect 4 digital quantity input signal interface INPUT0-3 of X121 port.In test process, when pressing the S1 switch, high level signal is sent to respectively 4 digital quantity input signal interface INPUT0-3,, if signaling interface is normal, can see very easily the variation of each signal by NCU.
In a similar fashion, as shown in Figure 4, in measuring head signaling interface test module 12, an end connection+24V positive source (P24EXT) of a switch (S2), the other end can connect 2 measuring head signaling interface MEPUS0-1 of X121 port.In test process, when pressing the S2 switch, high level signal is sent to respectively 2 measuring head signaling interface MEPUS0-1, can reflect the quality of 2 measuring head signaling interfaces by NCU.
As shown in Figure 5, the digital output signaling interface on the utility model test board comprises that with handwheel signaling interface test module 13 4 roads walk abreast and the identical test circuit of circuit structure.This 4 drive test examination circuit is in 4 digital quantity output signal interface OUTPUT0-3 of corresponding X121 port respectively, and all with the Test input signal of the output signal of this test circuit as two groups of handwheel signaling interface MPG0-1 that are used for testing the X121 port.Below as an example of the first via test circuit in the upper left corner in Fig. 5 example, be introduced.
This first via test circuit comprises a circuit in parallel, this parallel circuit comprises two branch roads in parallel, one of them branch road comprises the first resistance R 0 and a pilot lamp LED0, another branch road comprises the second resistance R 4 and the 3rd resistance R 8, one end of this parallel circuit is connected with the earth terminal (M24EXT) of+24V power supply, and the other end can connect one of them digital output signaling interface OUTPUT0 of X121 port.When digital quantity output signal interface is tested, by pilot lamp LED0 in test circuit, whether work and just can judge easily and intuitively whether digital output signaling interface OUTPUT0 is normal.In this test circuit, draw an output terminal between the second resistance R 4 and the 3rd resistance R 8, the digital output signal is carried out after electric resistance partial pressure Test input signal as two groups of handwheel signaling interface MPG0-1 of test.In Fig. 5, the circuit structure of other three drive tests examination circuit is all identical with the first via test circuit in above-mentioned introduction.
NCU uses inner square wave clock signal as reference signal, make 4 digital quantity output signals respectively with A ,/the negate signal of A(A), B ,/the negate signal of B(B) formal output, output to respectively in 4 drive tests examination circuit shown in Figure 5.These digital output signals are the square-wave signal of 90 ° of dutycycles 50%, order phase phasic difference, and oscillogram as shown in Figure 6.These 4 digital quantity output signals, respectively by the electric resistance partial pressure of 4 drive test examination circuit, become the Test input signal of handwheel signaling interface, receive respectively on 2 groups of handwheel interface MPG0-1.When the handwheel signaling interface is tested, by argument table preset in NCU, just can find out whether 2 groups of handwheel signaling interfaces are normal.
Preferably, in order to confirm the power supply normal operation of test board De Ge road, whether test board of the present utility model also can comprise a power monitoring module, normal for detection of test board De Ge road power supply.This power monitoring module can be embodied as LED that is connected with power supply etc., in order to show intuitively having or not of each road power supply.
In another embodiment of the utility model, this provides a kind of test board of the X121 input/output port for the test digital control unit.As shown in Figure 7, described test board 1 is except comprising digital quantity input signal interface testing module 11, measuring head signaling interface test module 12, digital output signaling interface and handwheel signaling interface test module 13,, in order to facilitate being connected of each pin on test board and X121 port, also comprise X121 interface module 14.Provide in this X121 interface module 14 corresponding to the function wiring of each pin on the X121 port and the port of direct and X121 port integrated connection.Like this, digital quantity input signal interface testing module 11, measuring head signaling interface test module 12, digital output signaling interface and handwheel signaling interface test module are connected all and can first with this X121 interface module 14, be connected on test board, then provide whole connection with the X121 port by this X121 interface module 14, this has further simplified connection, has improved testing efficiency.
According to above-mentioned embodiment introduction as can be known, the test board that is used for the X121 input/output port of test digital control unit in the utility model will be integrated into for the test function of digital quantity input signal interface, measuring head signaling interface, digital output signaling interface and handwheel signaling interface a circuit board, greatly simplify required wiring type and the wiring quantity of X121 input/output port test; And this test board utilizes the digital output signal as the Test input signal that is used for test handwheel signaling interface, reduced the corresponding testing apparatus that is used for the test of handwheel signaling interface.In addition,, because the circuit of this test board is extremely simple, select the most cheap single face general purpose board just can make, this greatly reduces testing cost.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (8)

1. a test board that is used for the X121 input/output port of test digital control unit, is characterized in that, described test board comprises:
Digital quantity input signal interface testing module, be used for testing the digital quantity input signal interface of described X121 input/output port;
Measuring head signaling interface test module, be used for testing the measuring head signaling interface of described X121 input/output port; And
Digital output signaling interface and handwheel signaling interface test module, be used for testing digital output signaling interface and the handwheel signaling interface of described X121 input/output port,
Wherein, in described digital output signaling interface and handwheel signaling interface test module, with the digital output signal as the Test input signal that is used for test handwheel signaling interface.
2. test board according to claim 1, it is characterized in that, in described digital quantity input signal interface testing module, an end connection+24V positive source of a switch, the other end is used for connecting 4 digital quantity input signal interfaces of described X121 input/output port.
3. test board according to claim 1, is characterized in that, in described measuring head signaling interface test module, and an end connection+24V positive source of a switch, the other end is used for connecting 2 measuring head signaling interfaces of described X121 input/output port.
4. test board according to claim 1, it is characterized in that, described digital output signaling interface comprises that with handwheel signaling interface test module 4 roads walk abreast and the identical test circuit of circuit structure, described 4 drive tests examinations circuit are in 4 digital quantity output signal interfaces of corresponding described X121 input/output port respectively, and all with the Test input signal of the output signal of this test circuit as two groups of handwheel signaling interfaces for testing described X121 input/output port.
5. test board according to claim 4, it is characterized in that, each road of described 4 drive test examination circuit includes a circuit in parallel, described parallel circuit comprises two branch roads in parallel, one of them branch road comprises one first resistance and a LED, another branch road comprises one second resistance and one the 3rd resistance, one end of described parallel circuit is connected with the earth terminal of+24V power supply, the other end is used for connecting one of them digital output signaling interface of described X121 input/output port, wherein, draw an output terminal between described the second resistance and described the 3rd resistance, the digital output signal is carried out after electric resistance partial pressure Test input signal as the described two groups of handwheel signaling interfaces of test.
6. whether test board according to claim 1, is characterized in that, described test board further comprises a power monitoring module, normal for detection of the power supply of described test board.
7. test board according to claim 6, is characterized in that, described power monitoring module is embodied as the LED that is connected with power supply.
8. test board according to claim 1, it is characterized in that, described test board further comprises an X121 interface module, and described X121 interface module provides corresponding to the function wiring of each pin on described X121 input/output port and port direct and described X121 input/output port integrated connection.
CN2013201933011U 2013-04-17 2013-04-17 Test board for testing X121 input/output port of numeric control unit Expired - Fee Related CN203287492U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106646093A (en) * 2016-12-28 2017-05-10 中核核电运行管理有限公司 Digital quantity input and output test device of digital computer control system
CN113820992A (en) * 2020-06-19 2021-12-21 泰科电子(上海)有限公司 Digital input and output signal testing platform

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106646093A (en) * 2016-12-28 2017-05-10 中核核电运行管理有限公司 Digital quantity input and output test device of digital computer control system
CN113820992A (en) * 2020-06-19 2021-12-21 泰科电子(上海)有限公司 Digital input and output signal testing platform
CN113820992B (en) * 2020-06-19 2023-10-10 泰科电子(上海)有限公司 Digital input and output signal test platform

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Granted publication date: 20131113

Termination date: 20200417