mappVision帮助助手 > 机器视觉帮助 > mapp Vision > 诊断 > 常见问题 > 图像采集常见问题<br/>

如果图像采集只返回黑色图像，原因可能有很多：

•可能的原因

•曝光时间 (ExposureTime) 设置为 0。

•内部和/或外部光源未正确配置（FlashColor、FlashSegment）。

•摄像机和/或外部光源的触发瞬间不正确。

•连接摄像机的 POWERLINK 接口与任务类周期不同步（POWERLINK 和 CPU 不同步）。

•包含触发瞬时计算的任务未分配给也可在 POWERLINK 周期内处理的任务类。

If the image acquisition only returns a black image, this can have many different causes:

•Possible reasons

•The exposure time (ExposureTime) is set to 0.

•Internal and/or external light is not configured correctly (FlashColor, FlashSegment).

•Incorrect trigger instant of the camera and/or external light.

•The POWERLINK interface to which the camera is connected is not synchronous to the task class cycle (POWERLINK and CPU are not synchronous).

•The task that contains the calculation of the trigger instant is not assigned to a task class that can also be processed within a POWERLINK cycle.

生成的图像是黑色的。