Advantech AE Technical Share Document

Transcription

1 Advantech AE Technical Share Document Date 2017/11/2 SR# Category FAQ SOP Related OS Windows 7, Windows XP Abstract IAG_FAQ APAX-5580, How to use LabVIEW in APAX-5580 to control APAX IO Module Keyword APAX-5580, LabVIEW, IO module Related Product APAX-5580 Problem Description: In this document, we describe the detailed procedures of how to use LabVIEW in APAX-5580 to control APAX IO module. Furthermore, we explain how to build runtime in case of the customer does not install LabVIEW. Answer: 1. First of all, install the latest version of EtherIO Bus Driver on the Advantech support webpage. &Doc_Source=Download 2. If you installed it with default path, you can find ADSDIO.dll in C:\Windows\System32 3. To use Advantech defined DIO functions, we need to prepare the header file of VC++ for APAX If you install AdamApax.NET Class Library VS2008 with default path, you can find ADSDIO.h in C:\Program Files (x86)\advantech\adamapax.net Class Library\Sample Code\APAX\Win32\CPlusPlus\include 1

2 4. Open the LabVIEW and New a Blank VI. In this document, we use LabVIEW2012 in Windows 7 as demonstration. (LabVIEW2009 with Windows XP is also verified can work in APAX-5570.) 5. After creating a new VI, switch from the Front Panel to Block Diagram window. Right click your mouse, and choose Connectivity Libraries & Executables Call Library Function Node button. This kind of node could call DLL or functions in the shared library directly. 2

3 6. Double click the VI and define the path of DLL, which is C:\Windows\System32 Use C language as calling convention. 7. Open ADSDIO.H to decide which API you want to transfer it to LabVIEW VI. Now we use API DIO_GetValue for illustration of APAX-5040 (DI-module). 8. In the Function tab, follow the rule of function name defined in ADSDIO.H. If you define the path of DLL correctly, it would be a list for you to choose. 3

4 9. In the Parameters tab, the parameter of each variable needs to be defined. 9.1 Return value We use the name ERR_DIOGET as the return value of the API DIO_GetValue. Use Signed 32-bit Integer data type as compatible to LONG type. 9.2 LONG handle 4

5 9.3 WORD i_wslot Use Unsigned 16-bit Integer data type as compatible to WORD type. 9.4 WORD i_wchannel 5

6 9.5 WORD* o_wvalue Use Signed 16-bit Integer Pointer data type as compatible to BOOL* type. 10. After defining those parameters, you could see the icon on the block diagram as below. For the following steps, we are going to demonstrate in detail to illustrate the concept of modularity for the amateur user of LabVIEW. One may build a project as bellow figure. For more details of modularity, one could refer to LabVIEW official tutorial: 6

7 11. Move your mouse on the pin, and right-clicking on the pin to create input type ( such as Constant, Control ) or output type ( Indicator ) of pins. 12. Generally, the left hand side of the module is for input pin, and usually used as Control. The right hand side is for output pin and used as Indicator. 13. For demonstration, we arranged all pins as shown below. However, considering APAX-5040 is a DI module, for input pins, we only need to create 1) handle is the driver handler, which is created by function ADAMDrvOpen. If driver initialization succeeded, function returns ERR_SUCCESS, and the handle will be used for rest of the functions. handle shall be terminated by function ADAMDrvClose. 2) i_wslot for controlling the slot ID of the APAX-5040 module 3) i_wchannel for controlling the channel number of the APAX-5040 module 7

8 For output pin, we need to create 1) o_bvalue for monitoring the DI value of APAX ) handle for passing the driver handler to the next module. 14. Switch to the Front Panel to assign the connector. There would be 9 pins already created shown on the Panel. 15. Assign connectors to specified pins. In the Connector zone, click the left-top connector. Then click the pin of handle. It would make the connector and pin as a pair. 8

9 Similarly, click the other connector in the Connector zone. Then click the pin of i_wslot to make them as a pair. Assign the rest of input pins with connectors. There are 5 output pins but only 4 connectors. However, we only assign those output we need same as step 14 th indicated. For example, if we want to monitor the error code of this function, we assign ERR_DIOGet to the right-top connector. 9

10 The handle needs to be passed to the next APAX IO Module, so we assign it as well. To get the DI value, we use the o_bvalue to be shown as the indicator. After finishing the assignment of module APAX-5040, we can save the file. 10

11 16. Besides, in LabVIEW, there is an option for you to edit the icon of the VI. Right click on the icon and choose Edit Icon There is painter for you to edit the icon. 11

12 17. To use the VI you created, save the VI (APAX5040), and then open a new blank VI. 18. Click the Select a VI button on the Functions palette. 19. Navigate to the VI, and left click to place it on the block diagram. 20. You can move your pointer on each pin, and it will show the variable name of the pin. For example, it shows handle when the pointer move on the left top pin. 12

13 21. In case of transmitting handle correctly among APAX IO Modules, we need 2 additional modules. Use ADAMDrvOpen Module as the first module, and ADAMDrvClose Module as the last module. 22. You could follow previous steps to create these 2 modules by their API definitions. 23. Select these 2 modules in your blank VI with APAX

14 24. You can create indicator for checking Error code. Connect the handle of DrvOpen to the handle pin of APAX Because we may change APAX IO Module ID and channel ID, we leave i_wslot and i_wchannel could be changed. 26. Connect the handle of APAX5040 and DrvClose. Complete all connection. 14

15 27. If you don t use the correct APAX IO Module ID, you would get Error as below. 28. You may use AdamApax.NET Utility to check your APAX IO Module. 29. After using the correct ID, you can get the value of channel 0 successfully! 15

16 For the Error code definition, you can look up in the ADSDIO.H for detailed explanation. 16

17 It is possible that the customer does not install LabVIEW in APAX-5580, but still wants to use APAX-IO Module. For this reason, we could build runtime (EXE file) and provide runtime to meet the customer s request without asking him to install LabVIEW. By following steps, we explain how to build runtime with LabVIEW. 1. Create a new a project and add the file. 17

18 2. Add from File. 3. It will include the used VI files and DLL automatically if the VI file includes other VI files. 18

19 4. Save your project. Select Build Specification and New an application (EXE) 5. Set your destination directory and your application name. 19

20 6. Configuring the project by moving the VI from Project Files to Startup VIs. 7. Click Build button to build the EXE file. 8. After building, find the runtime Application.exe. You can use the program to run. 20