LabVIEW develops PCI-1680U dual port can card

 
​​PCI-1680U It is a special product of Advantech company for CAN Network and PC Communication card connected between .
​moxa The company's CP-602U Same thing PCI Dual port CAN card , Compared with the two ,CP-602U Not provided LabVIEW Routine for , You need to write your own , stay LabVIEW64 Bit can run .
PCI-1680U Provide LabVIEW Example , But only support LabVIEW32 Bit software , This is different from other boards and supports of Advantech 32 position , And support 64 A different . Later check the program , Right LabVIEW Used in the example of DLL Is a separate version , Just for LabVIEW Development use , such as 1716. use 32 Bit LabVIEW perhaps 64 Bit LabVIEW No problem. , Just now, run separately 32 and 64 Bit LabVIEW Medium DAQNavi Create Channel(AI-Voltage).vi, The paths are
C:\Program Files(x86)\National Instruments\LabVIEW 2019\user.lib\DAQNavi PolymorphicVI\create\DAQNavi Create Channel(AI-Voltage).vi
C:\Program Files\NationalInstruments\LabVIEW 2019\user.lib\DAQNavi Polymorphic VI\create\DAQNavi CreateChannel(AI-Voltage).vi
Dynamic libraries are all commissioned C:\Windows\System32\DAQNavi_LV.dll. look ,dll For LabVIEW Developed separately , But the same dll.
The system uses two PCI-1680U card , I found that every time I reinstalled the driver of the card , Its CAN It will change , And there are no rules . Two cards correspond 4 individual CAN port . After installing the drive , The port number is random , Sometimes it's CAN1、CAN3、CAN2、CAN4, Sometimes it's CAN2、CAN3、CAN1、CAN4. Communicate with technical engineers on the above issues for many times , Finally, after communicating with Taiwan , Replied ,PCI-1680U It does exist , It's speechless . There is such an article on its website ：CAN Port number shifts after the OS is upgraded to a newer version.2020-06-03FAQ Document No.1-4177911771. A similar situation is mentioned here .
Relatively speaking MOXA Of CP-602U There is no random change of port number , But the manufacturer didn't LabVIEW The driver , You need to write it yourself . Fortunately, I have done this a few years ago LabVIEW Driven . This project was intended to purchase CP-602U, But the delivery time is too long , Therefore, we replaced Advantech CAN card , Here's a record , Attention should be paid to when purchasing later .

​