Software triggerd multi camera capture - Pixel format currently not supported

[yairhs]

Describe what you want to implement and what the issue & the steps to reproduce it are:

Hello,

I running a multicamera setup. all cameras are Basler ace acA5472-5gm.
Cameras are connected to a Basler GigE Interface Card, 4 Port PoE.
Cameras are software triggered.
I occusianly get "Pixel format currently not supported" errors during grabbing.
This can happen after ~1000 captures. But can also happen multiple times in a raw.

I have a different PC using a Basler 5GigE Interface Card, 4 Port PoE+ with the same code where I dont see this error.

This is asnippet of my code:

  try:
      grab = cam.RetrieveResult(4000, pylon.TimeoutHandling_ThrowException)
      if not grab.GrabSucceeded:
          err = grab.GetErrorDescription()
          self.logger.error("Grab failed on %s: %s", cid, err)
          grab.Release()
          raise RuntimeError(err)
    
      # Extract image and metadata
      img = grab.GetArray()
      w, h = grab.GetWidth(), grab.GetHeight()
      ox, oy = grab.GetOffsetX(), grab.GetOffsetY()
      grab.Release()

This is the error:

  File "pypylon\pylon.py", line 167, in func_wrapper
  File "pypylon\pylon.py", line 2250, in GetArray
  File "pypylon\pylon.py", line 167, in func_wrapper
  File "pypylon\pylon.py", line 2232, in GetImageFormat
ValueError: Pixel format currently not supported

Is there a way to minimize this type of errors?
Is this a hardware issue?

Thank you

Is your camera operational in Basler pylon viewer on your platform

Yes

Hardware setup used

PC
Win 11
X64

Camera(s) used

Basler ace acA5472-5gm

Runtime information:

python: 3.12.8 (main, Jan 14 2025, 22:49:36) [MSC v.1942 64 bit (AMD64)]
platform: win32/AMD64/11
pypylon: 4.1.0 / 9.0.3.215

[SMA2016a]

Set the packet size to 9000 and gradually increase the inter-packet delay in small steps.

[yairhs]

@SMA2016a Thank you for the suggestion.
I optimized the network parameters using the pylon GigE configurator and it ssems to help. I am still running continuously to verify that the error doesn't happen again.

What happens if I disconnect the cameras? Are the parameters set by configurator saved on the camera? or this needs to be done again after disconnecting from power

[yairhs]

@SMA2016a On my setup with the Basler 5GigE Interface Card, 4 Port PoE+ I set the packet size to 16000 (network setting is set to 16348) And it works well.
On my setup with the Basler GigE Interface Card, 4 Port PoE I set the packet size to 9000 (network setting is set to 9014) and I get continuos errors. Anything above 1500 fails continuisly (even 1504).
Do you know the reason for that?
Thanks

[SMA2016a]

This means the mtu size is not works correctly

So you use any other devices like network switche in between?

[yairhs]

@SMA2016a No, cameras are connected directly to the NIC. One camera per port.
Also cables are relativley short ~3m