# 点表设计

配置文件：`config/point_table.json`（YAML 镜像：`config/point_table.yaml`）

## 映射关系

```
ValveOpening
  ↔ AO_Channel_01        (physicalChannel)
  ↔ ns=1;s=.../ValveOpening (opcuaNodeId)
  ↔ control/cmd/EdgeDevice_01/ValveOpening/set (cmdTopic)
  ↔ control/ack/EdgeDevice_01/ValveOpening (ackTopic)
  ↔ data/EdgeDevice_01/ValveOpening (dataTopic)
```

由 `softbus_registry::PointRegistry` 加载并建立三向索引：`objectRef` / `topic` / `opcuaNodeId`。

## 主题规则

`config/topic_rule.json` 定义默认主题模板，点表可覆盖单点 `cmdTopic`/`dataTopic`。
