System.Tag.read¶

Description¶

Get value, path, quality and timestamp of tag(s).

Grammar¶

System.Tag.read(path: string): Promise<{ path: string; value: any; time: string; quality: string; }>

System.Tag.read(paths: Array): Promise<Array<{ path: string; value: any; time: string; quality: string; }>>

 - Parameter

    path - Tag path(s)

 - Return

    Value, path, quality and timestamp of tag(s)

Code Example¶

Get the value, path, quality and timestamp of the tag "Device:Temperature".

const tag = await System.Tag.read('@Device:Temperature');
console.log(tag.value);

const tags = await System.Tag.read(['@Device:Temperature', '@Device:Power']);
console.log(tags);