Connect more than 10 PCAN-USB adapter to communicat over UDS

[Oprogramer]

Hello,

i am trying to connect more than 10 PCAN-USB adapters for UDS communication. I have read that it is possible to create and connect to 16 PCAN-USB interfaces with interface channels from PCAN-USBBUS1 - PCAN-USBBUS16.

But I have to create and connect to more than 10 PCAN-USB adapters over UDS and i only found 9 channels for UDS-Communication from PUDS_USBBUS1 to PUDS_USBBUS9.

Is there any why to connect to more than 10 PCAN-USB adapters for UDS communication?


Best regards

[K.Wagner]

Hello,

PCAN-UDS can handle as many channels as PCAN-Basic (underlying transport layer API). The latest version of these APIs allow up to 16 USB channels simultaneously. If you cannot use more than 9 channels at a time is possible because your system has no resources enough to support more than 9 USB devices at a time.

Please check that:

1. All PCAN-USB devices attached to your computer have the power LED on
2. All PCAN-USB devices attached to your computer are also listed in the Windows device manager, i.e. within the node "CAN-Hardware"
3. Neither any of the CAN-Hardware entries nor the USB controllers (Windows device manager, node USB-Controllers) are showing any warning.

Note: I have just tested with 2 PCAN-USB X6 devices (12 channels in total) and I could connect all of them.

[Oprogramer]

Hello,

Thank you for the fast answer. I have the older PCAN-UDS Api version where just 9 Channels could be used.

I will download and install the new PCAN-UDS Api version.

Thank you for the information!


Best regards

[K.Wagner]

Please note that older versions of PCAN-UDS/PCAN-Basic could handle up to eight (8) channels; new versions up to sixteen (16). But there was never a version handling 9 channels!

[Oprogramer]

Hello again,

I checked the serial numbers of my PCAN-USB Adapters and i have the older PCAN-USB Adapters with serial numbers untill 199999. It is possible for the PCAN-USB Adapters of these serial numbers to update to the newer PCAN API version and to use more than 8 PCAN-Channels?

I have the PCAN-USB Adapters with serial numbers of: 002022 199999.

If it is possible, do i have to change than some methods of the API or are they the same as the older API methods?

And do i have to install again the installer for PCAN Basic and to replace the dll in Windows\SysWOW64,...?

And an additional question for the PCAN-ISO TP and PCAN-UDS dlls, do i only have to include them to my project references or do they also need to copy to the windows folder(Windows\SysWOW64 and Windows\System32 )?

Thank you and best regards

[K.Wagner]

Hello,

did you check that your computer can see all devices by using the device manager as described in my last post? as I already said, the amount of channels to use depends on the PCAN-Basic version used and in the capabilities of your computer.

I checked the serial numbers of my PCAN-USB Adapters and i have the older PCAN-USB Adapters with serial numbers untill 199999. It is possible for the PCAN-USB Adapters of these serial numbers to update to the newer PCAN API version and to use more than 8 PCAN-Channels?

Neither hardware version nor firmware version have anything to do with the amount of channel that PCAN-Basic can handle.

And an additional question for the PCAN-ISO TP and PCAN-UDS dlls, do i only have to include them to my project references or do they also need to copy to the windows folder(Windows\SysWOW64 and Windows\System32 )?

PCAN-ISO-TP/PCAN-UDS, as well as PCAN-Basic, are native libraries - not assemblies. This mean, you cannot add them as reference. You need to include the header file to your project, that corresponds to the used programming language (for instance, PCAN-ISO-TP.cs or PCAN-UDS.cs when using C#). The dlls can be placed in the output folder of your project, or in System32/SysWow64 folder if the have to be found from everywhere in your computer.

Please let us know which version of PCAN-Basic you are using. For this, please do one of these:

1. Call "CANGetValue/PCANBasic.GetValue" with the parameter PCAN_API_VERSION from your code, or
2. call "CANGetValue/PCANBasic.GetValue" with the parameter PCAN_LOG_STATUS from your code, for log activation. Then, check the version number in the generated log file, or
3. start one of the compiled "PCANBasicExample.exe" demo files, connect a channel, and click the button "Version"

[Oprogramer]

Hello,

Yes i checked, my computer cann see all devices. I have installed the older version of PCAN-Basic.

I have followed your recommendation and got the following informations:

- PCAN_USB 4.1.1.16099


So i checked also the PCANBasic.vb header file and recognized that it only contains 8 PCAN-USB channels.

Should i run the PCANBASIC installer again to upgrade to the newer version? And do i must replace the UDS and ISP-TP dlls in my Project to use the newer version?

Thanks and best regards

[K.Wagner]

- PCAN_USB 4.1.1.16099

this is the Driver version. I need the API version. This is found in the same text from where you got the driver version. See picture:

PCAN-basic API Version from sample exe

API-Version.PNG (12.62 KiB) Viewed 8769 times

So i checked also the PCANBasic.vb header file and recognized that it only contains 8 PCAN-USB channels.

Then you have an older file, but this no mean the PCAN-Basic is old. That is why we need to check the API version. Nevertheless, in order to get the latest files, please download the PCAN-Basic package from here. It contains header files, sample projects and libraries.

Should i run the PCANBASIC installer again to upgrade to the newer version?

Yes, if you have installed the PCAN-Basic using the PEAK-System-Driver-Setup (PeakOemDrv.exe). The latest version can be found here.

And do i must replace the UDS and ISP-TP dlls in my Project to use the newer version?

No, just check that you are using the latest ISO-TP and UDS versions. The version history of all APIs can be seen here.

[Oprogramer]

Hello,

sorry i looked at the false row.

The current API version i use is: 4.2.0.134

So i have to install the new PCANBASIC API.

Thank you and best regards