About PCAN-view software

[neuezeal]

Hello,

I am trying to do a loopback test.

The hardware configuration is as the picture in the attached file.

How do I send a message?


Thank you.

[K.Wagner]

Hello,

all you need to know is in the PCAN-View help file. Try hitting the key F1 from the PCAN_View UI:

Documentation from PCAN-View for transmitting a message

Help.PNG (54.01 KiB) Viewed 1001 times

[M.Heidemann]

Hello,

Some additional info:

The cabling shown in your pictures may cause issues, as you are missing termination (120Ohm Resistor between CAN-High and CAN-Low on both bus-ends,
you should measure ~ 60 Ohms between CAN-High and CAN-Low on the bus in an unpowered state).
CAN requires termination to properly work, otherwise you might run into error-frames and bus errors.

Also you should consider improving the connection of cables which is currently taped together with clear tape,
i would suggest to shorten each exposed cable end a bit, twist them together, fuse them
with solder and either use electrical tape or schrink tubing - if available - to provide some insulation.

This way the cabling will be more reliable and can be moved with breaking apart.

Best Regards

Marvin

[neuezeal]

Thank you.

[neuezeal]

Hello,

Some additional info:

The cabling shown in your pictures may cause issues, as you are missing termination (120Ohm Resistor between CAN-High and CAN-Low on both bus-ends,
you should measure ~ 60 Ohms between CAN-High and CAN-Low on the bus in an unpowered state).
CAN requires termination to properly work, otherwise you might run into error-frames and bus errors.

Also you should consider improving the connection of cables which is currently taped together with clear tape,
i would suggest to shorten each exposed cable end a bit, twist them together, fuse them
with solder and either use electrical tape or schrink tubing - if available - to provide some insulation.

This way the cabling will be more reliable and can be moved with breaking apart.

Best Regards

Marvin

Hello,

Attach detailed photos.
As mentioned above, if the line connection structure is improved, will it be possible to send and receive CAN data normally through pcan-view?

Thank you very much.

[neuezeal]

Hello,

Some additional info:

The cabling shown in your pictures may cause issues, as you are missing termination (120Ohm Resistor between CAN-High and CAN-Low on both bus-ends,
you should measure ~ 60 Ohms between CAN-High and CAN-Low on the bus in an unpowered state).
CAN requires termination to properly work, otherwise you might run into error-frames and bus errors.

Also you should consider improving the connection of cables which is currently taped together with clear tape,
i would suggest to shorten each exposed cable end a bit, twist them together, fuse them
with solder and either use electrical tape or schrink tubing - if available - to provide some insulation.

This way the cabling will be more reliable and can be moved with breaking apart.

Best Regards

Marvin

Hello,

I set it like this
If you send a message
status: Error Passive.

To solve this problem, can I improve the line connection as described above?

Thank you.

[neuezeal]

Hello,

I made a fix to connect the resistor.
If you look at pcan-view, it seems to work properly, right?

Thank you.

[M.Heidemann]

Hi,
By "bus ends" we refer to the end of the bus, in this case thise would be where your db9-connectors are.
However it seems to work regardless -for now.
If you want to be 100% that no error frames are happening you should check "error frames" in the trace-options
in PCAN-View and record a trace (Red record button in the toolbar):

Trace_options.png (9.74 KiB) Viewed 956 times

A trace is a log of the BUS-traffic, if error frames are enabled it will also log those.
If you are seeing error frames, you should consider improving the cabling further.

As an example you can example look at the PCAN-Cable 2:

https://www.peak-system.com/PCAN-Kabel- ... .html?&L=1

Under description you'll see a graphics on how the cable is configured.

Feel free to contact us, if you have more questions.

Best Regards

Marvin