{  
    "nodes": [  
        {  
            "id": "MockStirrer1COPY",  
            "name": "模拟搅拌器(Copy)",  
            "children": [],  
            "parent": null,  
            "type": "device",  
            "class": "mock_stirrer_new",  
            "position": {  
                "x": 620.6111111111111,  
                "y": 171,  
                "z": 0  
            },  
            "config": {  
                "port": "MOCK"  
            },  
            "data": {  
                "status": "Idle",
                "vessel": "",
                "purpose": "",
                "stir_speed": 0.0,  
                "target_stir_speed": 0.0,  
                "stir_state": "Stopped",
                "stir_time": 0.0,
                "settling_time": 0.0,
                "progress": 0.0,
                "max_stir_speed": 2000.0
            }  
        }  
    ],  
    "links": []  
}