How to set PayloadTransferBlockDelay with pypylon?

[kboseong]

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

I want to set PayloadTransferBlockDelay = 0 when using the Sequencer (to avoid FPS drop).
With pypylon, which nodemap and API should I use to change this value?

Minimal code I tried:

from pypylon import pylon, genicam

cam = pylon.InstantCamera(pylon.TlFactory.GetInstance().CreateFirstDevice())
cam.Open()
try:
    node = cam.GetNodeMap().GetNode("PayloadTransferBlockDelay")         
except genicam.LogicalErrorException as e:
    print("Node not found:", e)

try:
    node = cam.GetStreamGrabberNodeMap().GetNode("PayloadTransferBlockDelay")  
except genicam.LogicalErrorException as e:
    print("Node not found:", e)

Could you share the correct way (and a minimal working snippet) to set PayloadTransferBlockDelay via pypylon?

Is your camera operational in Basler pylon viewer on your platform

Yes

Hardware setup used

Camera Model: a2A3536-31umPRO
PC: mac mini m4
Interface: USB3

Camera(s) used

Basler a2A3536-31umPRO (40603605)
p=vu3pc_imx676m_pro/s=r/v=1.0.0/i=9722.9/h=e6b5eaf

Runtime information:

python: 3.12.11 (main, Jun  3 2025, 15:41:47) [Clang 17.0.0 (clang-1700.0.13.3)]
platform: darwin/arm64/24.5.0
pypylon: 4.2.0 / 10.2.1.471

[gaeeronimo]

Hello @kboseong,

the camera Parameter "PayloadTransferBlockDelay" only applies to ace USB cameras. Your camera is a "ace 2 USB" model and does not implement this Parameter. Do you have frame drops in you current setup? If so, could you please share details about the settings your camera operate in?

Regards,
Andreas