CN114326491B - Valve island visual detection equipment and detection method based on IO-Link protocol - Google Patents
Valve island visual detection equipment and detection method based on IO-Link protocol Download PDFInfo
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Abstract
The application discloses a valve island visual detection device and a detection method based on an IO-Link protocol, wherein the device comprises the following steps: the power interface is a 2-core input interface; the control interface is a 5-core output interface; the power interface is connected with the input end of the controller through the isolation module, and the output end of the controller is electrically connected with the valve island through the control interface; the controller receives signals of the power interface and the control interface, so that the valve island can be rapidly detected. The method comprises the following steps: parameter setting, mode selection, starting test, judging whether the valve island is qualified or not, sending a prompt signal and sending data. The application has the advantages of high integration level, small volume, simple operation, multiple modes, portability, capability of meeting the continuous detection requirement of the valve island, capability of rapidly determining whether each part normally operates, capability of normally operating the valve island, capability of improving the detection precision and quality of the valve island and reduction of detection errors.
Description
Technical Field
The application relates to the technical field of valve island detection, in particular to a valve island visual detection device and a detection method based on an IO-Link protocol.
Background
At present, no special detection equipment for the valve island exists, and a plurality of equipment are connected with each path on the valve island to detect one by one, so that the test mode is single, the test efficiency is low, and the detection of other modes can not be performed. Along with the increase of the number of the electromagnetic valves on the valve island, the connecting lines are also increased, so that the detection operation procedure is complicated and easy to make mistakes, meanwhile, a display is required to be additionally connected, a plurality of devices are required to be connected for operation, and the valve island is large in size and inconvenient to carry. It is therefore important how to implement a simple and convenient valve island routine functional test.
Disclosure of Invention
The application aims to provide the visual detection equipment and the visual detection method for the valve island based on the IO-Link protocol aiming at the defects of the prior art, which have the advantages of high integration level, small volume, simple operation, multiple modes, portability, capability of meeting the continuous detection requirement of the valve island, capability of rapidly determining whether each part normally operates, capability of normally operating the function of the valve island, improvement of the detection precision and quality of the valve island and reduction of detection errors.
In order to solve the technical problems, the application adopts the following technical scheme:
valve island visual detection equipment based on IO-Link protocol, its characterized in that: comprising
The power interface is a 2-core input interface;
the control interface is a 5-core output interface;
the power interface is connected with the input end of the controller through the isolation module, and the output end of the controller is electrically connected with the valve island through the control interface;
the controller receives signals of the power interface and the control interface, so that the valve island can be rapidly detected.
The valve island visual detection equipment is high in integration level, small in size, simple to operate, various in mode and convenient to carry, can meet continuous detection requirements of the valve island, can quickly determine whether each part normally operates, can normally operate the valve island function, improves detection precision and quality of the valve island, and reduces detection errors.
Further, the 5-core output interface of the control interface comprises a pin P24, a pin N24, a pin L+ and a pin C/Q, wherein the pin P24 and the pin N24 are connected with the valve island through signal lines, the solenoid valve for the valve island is used for supplying power, the pin L+ and the pin L-are connected with the valve island through signal lines, the valve island controller for the valve island is used for supplying power, and the pin C/Q is used for signal communication of the IO-Link protocol.
Further, the 2-core input interface of the power interface is externally connected with a 24V power supply.
Further, the isolation module is a DCDC isolation module.
Further, the device also comprises a shell, wherein the controller, the power interface, the isolation module and the control interface are all arranged on a lower circuit board of the shell, the power interface is electrically connected with the isolation module, and the isolation module is electrically connected with the control interface through the controller.
Further, a communication module, a memory and an IO-Link communication protocol chip are arranged on the lower circuit board, the communication module, the memory and the IO-Link communication protocol chip are electrically connected with the controller, the communication module is used for communicating data tested by the valve island with the mobile terminal, the memory is used for storing data, and the IO-Link communication protocol chip is used for detecting communication connection of the equipment.
Further, be equipped with upper circuit board in the casing, lower floor's circuit board is equipped with first binding post, and upper circuit board is equipped with the second binding post, and first binding post passes through FPC line connection second binding post, realizes the electric connection between upper circuit board and the lower floor's circuit board.
Further, a display module for inputting and displaying the test content of the valve island is arranged on the shell, the display module is electrically connected with the upper circuit board, and the display module is a touch display screen or consists of operation keys and a display screen.
The detection method of the valve island visual detection device based on the IO-Link protocol is characterized by comprising the following steps of:
s1, switching on a power supply of detection equipment, and inputting detection parameters through a display module and/or a mobile terminal;
s2, inserting a valve island terminal, and selecting a detection mode of a valve island to be detected;
s3, starting a test, and receiving and displaying a real-time signal of the valve island to be tested;
s4, judging whether the valve island is qualified according to whether the current is larger than 1A or smaller than 5mA, if the current is larger than 1A or smaller than 5mA, the valve island is not qualified, otherwise, the valve island is qualified;
s5, sending out prompt signals of whether the valve island to be tested is qualified or not, and sending data to the mobile terminal.
The detection method has simple steps, is convenient for prompting the detection result of the valve island, can feed back relevant detection information to the display module for display, and is convenient and quick to operate and apply.
Further, the detection mode includes a jog load test, 8 load tests, a full load test, a cross load test, or a combined load test.
Due to the adoption of the technical scheme, the application has the following beneficial effects:
1. the valve island detection device has the advantages of high integration level, small volume, simplicity in operation, multiple modes, convenience in carrying, capability of meeting the continuous detection requirement of the valve island, capability of rapidly determining whether each part normally operates, capability of normally operating the valve island, capability of improving the detection precision and quality of the valve island and capability of reducing detection errors.
2. The detection method has simple steps, is convenient for prompting the detection result of the valve island, can feed back relevant detection information to the display module for display, is convenient and quick to operate and apply, and greatly improves the working efficiency.
Drawings
The application is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic plan view of a valve island visual detection device and a detection device in a detection method based on an IO-Link protocol;
FIG. 2 is a schematic cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 3 is a schematic diagram of a lower circuit board according to the present application;
FIG. 4 is a schematic diagram of the upper circuit board in the present application;
FIG. 5 is a schematic diagram of a display screen according to the present application;
FIG. 6 is a flow chart of a valve island detection method of the present application;
FIG. 7 is a schematic diagram of the connection between the sensing device and the valve island in the present application;
FIG. 8 is a circuit diagram of a controller according to the present application;
FIG. 9 is a circuit diagram of an IO-Link communication protocol chip in the present application;
FIG. 10 is a circuit diagram of a power interface connected to a DCDC isolation module according to the present application;
fig. 11 is a circuit diagram of the power supply of the controller in the present application.
In the figure: 1-a housing;
2-a display screen; 201-a display screen pin;
3-operating a key;
4-working indicator lights;
5-a lower layer circuit board; 501-a power interface; 502-a power indicator light; 503-isolating module; 504-a communication module; 505-control interface; 506-data interface; 507-a first connection terminal; 508-a controller; 509-voice prompt means; 510-memory; 511-IO-Link communication protocol chip;
6-upper layer circuit board; 602-a second connection terminal; 603-upper circuit board pins;
7-a prompting lamp;
8-a valve island controller;
9-valve islands;
10-electromagnetic valve.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, shall fall within the scope of the application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
As shown in fig. 1 to 5, the valve island visual detection device based on the IO-Link protocol of the present application includes a housing 1, where the dimensions of the housing 1 are 100mm long, 72mm wide and 26mm high. The detection equipment is small in size, convenient to carry and flexible and convenient to use.
The shell 1 is provided with a lower circuit board 5 and an upper circuit board 6, the controller 508, the power interface 501, the isolation module 503 and the control interface 505 are all arranged on the lower circuit board 5 of the shell 1, the power interface 501 is electrically connected with the isolation module 503, and the isolation module 503 is electrically connected with the control interface 505 through the controller 508. The power interface 501 is a 2-core input interface; the control interface 505 is a 5-core output interface; the power interface 501 is connected with the input end of the controller 508 through the isolation module 503, and the output end of the controller 508 is electrically connected with the valve island 9 through the control interface 505; the controller 508 receives the signals of the power interface 501 and the control interface 505, so that the valve island 9 is rapidly detected. The 2 core input interface of the power interface 501 is externally connected with a 24V power supply, and the 24V power supply is not replaced along with the increase or decrease of the number of the electromagnetic valves 10, so that the application range of the detection equipment is greatly improved.
The isolation module 503 is a DCDC isolation module, and the DCDC isolation module is configured to divide the voltage into 2 paths, where one path is supplied to P24 and N24 (the valve island controller 8), and the other path is supplied to l+, L- (the solenoid valve 10), and a circuit diagram between the power interface 501 and the DCDC isolation module is shown in fig. 10.
The circuit diagram of the controller 508 is shown in fig. 8, wherein the pin BOOT0 is grounded via the resistor R1, the controller 508 is preferably a CPU, and the circuit diagram between the controller 508 and the power interface 501 is shown in fig. 11.
The valve island visual detection equipment is high in integration level, small in size, simple to operate, various in mode, convenient to carry, capable of meeting continuous detection requirements of the valve island 9, capable of rapidly determining whether each part normally operates, capable of determining whether the function of the valve island 9 normally operates, capable of improving detection precision and quality of the valve island 9, and capable of reducing detection errors.
The 5-core output interface of the control interface 505 comprises a pin P24, a pin N24, a pin l+, a pin L-and a pin C/Q, wherein the pin P24 and the pin N24 are connected with the valve island 9 through signal lines, the pin P24 and the pin N24 are high-power voltage output ends for supplying power to the solenoid valve 10 of the valve island 9, the pin l+ and the pin L-are connected with the valve island 9 through signal lines and are low-power voltages for supplying power to the valve island controller 8 of the valve island 9, the pin C/Q is used for signal communication of the IO-Link protocol, and the voltages of the pin P24, the pin N24, the pin l+, the pin L-and the pin C/Q are all from the power interface 501.
The lower circuit board 5 is provided with a communication module 504, a memory 510 and an IO-Link communication protocol chip 511, the communication module 504, the memory 510 and the IO-Link communication protocol chip 511 are all electrically connected with the controller 508, the communication module 504 is used for communicating the data of the valve island test with the mobile terminal, the memory 510 is used for storing the data, and the IO-Link communication protocol chip 511 is used for detecting the communication connection of the equipment. The lower circuit board 5 is further provided with a data interface 506, and the data interface 506 is provided with a pin VDCG for inputting a program required by operation.
The lower layer circuit board 5 is also provided with a power indicator 502 and a prompt module, and the prompt module is used for receiving a control signal of the controller 508 and sending a prompt signal whether the valve island 9 to be detected is qualified or not. The prompting module comprises a prompting light 7 or an audio prompting device 509. The indicator light 7 is preferably a red-green indicator light, the red light is unqualified, and the green light is qualified.
The circuit diagram of the IO-Link communication protocol chip 511 is shown in FIG. 9, wherein the pin M_EN is connected with the resistor R7, the pin FB and the pin LR_OUT are connected with the capacitor C13 and the capacitor C14, and the resistor R7, the capacitor C13 and the capacitor C14 are grounded; the pin SPI_EN_L, the pin TX_EN/SPI_CLK and the pin RX/MOSI are respectively connected with the resistor R9, the resistor R10 and the resistor R11, and the resistor R9, the resistor R10, the resistor R11, the pin VSS of the 14 number and the pin VSS of the 17 number are all grounded; the capacitor C16 and the capacitor C17 are connected to the pin VDD 11 and the pin VDD 20, the capacitor C16 and the capacitor C17 are grounded, the pin L+ and the zener diode D3 are connected to the pin VDD 11 and the pin VDD 20, the zener diode D4, the capacitor C19 and the pin IO-LinkC/Q are connected to the pin COM_O, the pin COM_I and the zener diode D3, and the zener diode D4 and the capacitor C19 are grounded.
One or more memories 510 may be further disposed on the lower circuit board 5 for storing one or more programs; when one or more programs are executed by the controller 508, the controller 508 can realize the detection requirements of different modes of the valve island 9, and the detection efficiency of the valve island 9 can be improved.
The memory 510 is a storage medium for detecting the valve island, and contains a computer program which, when executed by the controller 508, implements the method for detecting the valve island 9. The storage medium is a computer readable storage medium that can be used to store software programs, computer executable programs, and modules. The storage medium may be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. The memory 510 may include high-speed random access memory 510, and may also include non-volatile memory 510, such as at least one disk memory 510, flash memory device, or other non-volatile solid-state memory 510. The memory 510 may further include a memory 510 remotely located with respect to the controller 508, such remote memory 510 may be connected to the device through a network, implementations of which include, but are not limited to, the internet, a local area network, a mobile communications network, and combinations thereof.
The storage medium stores signal data including signal data propagated in baseband or as part of a carrier wave, with program code carrying a computer scale. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. The signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Computer program code for carrying out operations of the present application may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the C-language or similar programming languages. The program code may execute entirely on the device, as a stand-alone software package, partly on a remote computer or entirely on the remote computer or server.
The upper circuit board 6 is arranged in the shell 1, the lower circuit board 5 is provided with the first wiring terminal 507, the upper circuit board 6 is provided with the second wiring terminal 602, the first wiring terminal 507 is connected with the second wiring terminal 602 through the FPC wire, the electric connection between the upper circuit board 6 and the lower circuit board 5 is realized, and the signal conduction between the upper circuit board 6 and the lower circuit board 5 is facilitated.
The upper circuit board 6 is provided with a work indicator lamp 4, and the work indicator lamp 4 comprises a running lamp. Display 2 connects to upper circuit board pins 603 GND, VCC, SCL, SDA, RES, DC, CS1, FS0, CS2 via display pins 201 GND, VCC, SCL, SDA, RES, DC, CS, FS0, CS2.
The shell 1 is provided with a display module for inputting and displaying the test content of the valve island 9, the display module is electrically connected with the upper circuit board 6, and the display module is a touch display screen or consists of an operation key 3 and a display screen 2. The operation keys 3 include a mode key, a set key, a down key, an up key, and a start-stop key. The touch display screen or the display screen 2 is fixedly arranged on the shell 1, when the touch display screen is adopted, related parameters can be directly input through the touch display screen, test contents are displayed, the operation keys 3 are omitted, the control interface is simplified, and the touch display screen can be an electromagnetic screen, an infrared screen or a capacitive screen; when the operation key 3 and the display screen 2 are adopted, relevant parameters can be input through the operation key 3, and the display screen 2 displays test contents.
As shown in fig. 6 to 7, a specific detection method of a valve island visual detection device is provided, where the time of each station is set according to the requirement of valve island detection, and the method is divided into the following embodiments according to the detection modes:
example 1 (inching load test)
S1, switching on a power supply of the detection equipment, and independently inputting required detection parameters through a display module, or independently inputting required detection parameters through a mobile terminal, or jointly controlling the input of the detection parameters through the display module and the mobile terminal;
s2, selecting a inching load test, wherein the periodic test, such as the periodic test of the electromagnetic valve 10 is performed once according to the sequence of 1,2,3 and … …, or the continuous test, such as the continuous test according to the pause of 1,2 and 3, or the pause of 1 and 2, or the single test is selected, and the tests are performed one by one;
s3, pressing a start-stop button, receiving and displaying a real-time signal of the valve island 9 to be tested, receiving the signal by a CPU, generating an IO-Link communication protocol instruction, sending the instruction to the valve island controller 8, controlling the valve island 9 to operate by the valve island controller 8, feeding back the operated detection information to generate the IO-Link communication protocol instruction, and transmitting the IO-Link communication protocol instruction to the CPU;
s4, the CPU judges whether the valve island 9 is qualified according to whether the current is larger than 1A or smaller than 5mA, if the current is larger than 1A or smaller than 5mA, the valve island 9 is not qualified, otherwise, the valve island 9 is qualified;
s5, sending out qualified/unqualified prompt signals of the valve island 9 to be tested through the prompt module, and sending data to the mobile terminal.
Example 2 (8 load tests)
S1, switching on a power supply of the detection equipment, and independently inputting required detection parameters through a display module, or independently inputting required detection parameters through a mobile terminal, or jointly controlling the input of the detection parameters through the display module and the mobile terminal;
s2, selecting 8 load tests, taking 8 electromagnetic valves as a group, and simultaneously testing 8 electromagnetic valves at a time;
s3, pressing a start-stop button, receiving and displaying a real-time signal of the valve island 9 to be tested, receiving the signal by a CPU, generating an IO-Link communication protocol instruction, sending the instruction to the valve island controller 8, controlling the valve island 9 to operate by the valve island controller 8, feeding back the operated detection information to generate the IO-Link communication protocol instruction, and transmitting the IO-Link communication protocol instruction to the CPU;
s4, the CPU judges whether the valve island 9 is qualified according to whether the current is larger than 1A or smaller than 5mA, if the current is larger than 1A or smaller than 5mA, the valve island 9 is not qualified, otherwise, the valve island 9 is qualified;
s5, sending out qualified/unqualified prompt signals of the valve island 9 to be tested through the prompt module, and sending data to the mobile terminal.
Example 3 (full load test)
S1, switching on a power supply of the detection equipment, and independently inputting required detection parameters through a display module, or independently inputting required detection parameters through a mobile terminal, or jointly controlling the input of the detection parameters through the display module and the mobile terminal;
s2, selecting a full-load test, and testing all electromagnetic valves on the valve island 9 together;
s3, pressing a start-stop button, receiving and displaying a real-time signal of the valve island 9 to be tested, receiving the signal by a CPU, generating an IO-Link communication protocol instruction, sending the instruction to the valve island controller 8, controlling the valve island 9 to operate by the valve island controller 8, feeding back the operated detection information to generate the IO-Link communication protocol instruction, and transmitting the IO-Link communication protocol instruction to the CPU;
s4, the CPU judges whether the valve island 9 is qualified according to whether the current is larger than 1A or smaller than 5mA, if the current is larger than 1A or smaller than 5mA, the valve island 9 is not qualified, otherwise, the valve island 9 is qualified;
s5, sending out qualified/unqualified prompt signals of the valve island 9 to be tested through the prompt module, and sending data to the mobile terminal.
Example 4 (Cross load test)
S1, switching on a power supply of the detection equipment, and independently inputting required detection parameters through a display module, or independently inputting required detection parameters through a mobile terminal, or jointly controlling the input of the detection parameters through the display module and the mobile terminal;
s2, selecting a cross load test, namely testing 10 electromagnetic valves at intervals, firstly testing the electromagnetic valves 10 of 1,3,5,7 and 9 together, and then testing the electromagnetic valves 10 of 2,4,6,8 and 10 together;
s3, pressing a start-stop button, receiving and displaying a real-time signal of the valve island 9 to be tested, receiving the signal by a CPU, generating an IO-Link communication protocol instruction, sending the instruction to the valve island controller 8, controlling the valve island 9 to operate by the valve island controller 8, feeding back the operated detection information to generate the IO-Link communication protocol instruction, and transmitting the IO-Link communication protocol instruction to the CPU;
s4, the CPU judges whether the valve island 9 is qualified according to whether the current is larger than 1A or smaller than 5mA, if the current is larger than 1A or smaller than 5mA, the valve island 9 is not qualified, otherwise, the valve island 9 is qualified;
s5, sending out qualified/unqualified prompt signals of the valve island 9 to be tested through the prompt module, and sending data to the mobile terminal.
Example 5 (comprehensive load test)
S1, switching on a power supply of the detection equipment, and independently inputting required detection parameters through a display module, or independently inputting required detection parameters through a mobile terminal, or jointly controlling the input of the detection parameters through the display module and the mobile terminal;
s2, selecting at least two test modes of a inching load test, 8 load tests, a full load test and a cross load test, and setting successively;
s3, pressing a start-stop button, receiving and displaying a real-time signal of the valve island 9 to be tested, receiving the signal by a CPU, generating an IO-Link communication protocol instruction, sending the instruction to the valve island controller 8, controlling the valve island 9 to operate by the valve island controller 8, feeding back the operated detection information to generate the IO-Link communication protocol instruction, and transmitting the IO-Link communication protocol instruction to the CPU;
s4, the CPU judges whether the valve island 9 is qualified according to whether the current is larger than 1A or smaller than 5mA, if the current is larger than 1A or smaller than 5mA, the valve island 9 is not qualified, otherwise, the valve island 9 is qualified;
s5, sending out qualified/unqualified prompt signals of the valve island 9 to be tested through the prompt module, and sending data to the mobile terminal.
The detection method has simple steps, is convenient for prompting the detection result of the valve island 9, and can feed back relevant detection information to the display module for display, so that the operation and the application are convenient and quick.
The above is only a specific embodiment of the present application, but the technical features of the present application are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present application to achieve substantially the same technical effects are included in the scope of the present application.
Claims (8)
1. Valve island visual detection equipment based on IO-Link protocol, its characterized in that: comprising
The power supply interface is a 2-core input interface;
the control interface is a 5-core output interface;
the power interface is connected with the input end of the controller through the isolation module, and the output end of the controller is electrically connected with the valve island through the control interface;
the controller receives signals of the power interface and the control interface, so that the valve island is rapidly detected;
the detection method of the detection device comprises the following steps:
s1, switching on a power supply of detection equipment, and inputting detection parameters through a display module and/or a mobile terminal;
s2, selecting a detection mode of a valve island to be detected; the detection mode comprises a inching load test, 8 load tests, a full load test, a cross load test or a comprehensive load test;
s3, starting a test, and receiving and displaying a real-time signal of the valve island to be tested;
s4, judging whether the valve island is qualified according to whether the current is larger than 1A or smaller than 5mA, if the current is larger than 1A or smaller than 5mA, the valve island is not qualified, otherwise, the valve island is qualified;
s5, sending out prompt signals of whether the valve island to be tested is qualified or not, and sending data to the mobile terminal.
2. The IO-Link protocol based valve island visualization detection apparatus of claim 1, wherein: the 5-core output interface of the control interface comprises a pin P24, a pin N24, a pin L+ and a pin L-and a pin C/Q, wherein the pin P24 and the pin N24 are connected with the valve island through signal lines and used for supplying power to an electromagnetic valve of the valve island, the pin L+ and the pin L-are connected with the valve island through signal lines and used for supplying power to a valve island controller of the valve island, and the pin C/Q is used for signal communication of an IO-Link protocol.
3. The IO-Link protocol based valve island visualization detection apparatus of claim 1, wherein: the 2-core input interface of the power interface is externally connected with a 24V power supply.
4. The IO-Link protocol based valve island visualization detection apparatus of claim 1, wherein: the isolation module is a DCDC isolation module.
5. The IO-Link protocol based valve island visualization detection apparatus of claim 1, wherein: the device comprises a shell, and is characterized in that the device also comprises a shell, wherein the controller, the power interface, the isolation module and the control interface are all arranged on a lower circuit board of the shell, the power interface is electrically connected with the isolation module, and the isolation module is electrically connected with the control interface through the controller.
6. The IO-Link protocol based valve island visualization detection apparatus of claim 5, wherein: the lower circuit board is provided with a communication module, a memory and an IO-Link communication protocol chip, wherein the communication module, the memory and the IO-Link communication protocol chip are electrically connected with the controller, the communication module is used for communicating data of valve island test with the mobile terminal, the memory is used for storing data, and the IO-Link communication protocol chip is used for detecting communication connection of equipment.
7. The IO-Link protocol based valve island visualization detection apparatus of claim 6, wherein: the upper circuit board is arranged in the shell, the lower circuit board is provided with a first wiring terminal, the upper circuit board is provided with a second wiring terminal, and the first wiring terminal is connected with the second wiring terminal through an FPC wire, so that the upper circuit board is electrically connected with the lower circuit board.
8. The IO-Link protocol based valve island visualization detection device of claim 7, wherein: the display module is used for inputting and displaying the test content of the valve island, and is electrically connected with the upper circuit board, and the display module is a touch display screen or is composed of operation keys and a display screen.
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