从 PLC 向相机发送自定义数据

步骤 1：创建并配置自定义数据标签

Start by creating two tags, one to copy data from the custom data tag and the other to move it on to the camera output tag. Both have to be a STRING data type.

步骤 2：为 Node-RED 定义字节序

You can choose any byte order from the output assembly assigned for Node-RED. The byte order refers to how the data is formatted and transmitted.

步骤 3：开发触发逻辑

After creating the custom data tag, use the trigger logic detailed in [Trigger Using a PLC] to create a new set of logical instructions. The trigger logic should handle the camera's activation, ensuring that it captures an image whenever specific conditions are met.

备注

如果对同一个 VIN 触发两次，数据将不会在第二张图像中存储。请在发送新的数据之前清除数据。

步骤 4：在 Node-RED 中创建一个流程

Create a new flow in Node-RED that mirrors the required functionality.

步骤 5：捕获图像并关联元数据

After triggering the camera, verify that the image capture process is working as expected.

Ensure that each image the camera takes has metadata, including the custom data.