diff --git a/.conda/base/recipe.yaml b/.conda/base/recipe.yaml
index 3c5bb88..fd20564 100644
--- a/.conda/base/recipe.yaml
+++ b/.conda/base/recipe.yaml
@@ -46,7 +46,7 @@ requirements:
   - jinja2
   - requests
   - uvicorn
-  - opcua
+  - opcua # [not osx]
   - pyserial
   - pandas
   - pymodbus
diff --git a/unilabos/devices/liquid_handling/liquid_handler_abstract.py b/unilabos/devices/liquid_handling/liquid_handler_abstract.py
index aa695a0..e084551 100644
--- a/unilabos/devices/liquid_handling/liquid_handler_abstract.py
+++ b/unilabos/devices/liquid_handling/liquid_handler_abstract.py
@@ -684,12 +684,16 @@ class LiquidHandlerAbstract(LiquidHandlerMiddleware):
 
     @classmethod
     def set_liquid_from_plate(
-        cls, plate: ResourceSlot, well_names: list[str], liquid_names: list[str], volumes: list[float]
+        cls, plate: List[ResourceSlot], well_names: list[str], liquid_names: list[str], volumes: list[float]
     ) -> SetLiquidFromPlateReturn:
         """Set the liquid in wells of a plate by well names (e.g., A1, A2, B3).
 
         如果 liquid_names 和 volumes 为空，但 plate 和 well_names 不为空，直接返回 plate 和 wells。
         """
+        if isinstance(plate, list):  # 未来移除
+            plate = plate[0]
+        assert issubclass(plate.__class__, Plate), "plate must be a Plate"
+        plate: Plate = cast(Plate, plate)
         # 根据 well_names 获取对应的 Well 对象
         wells = [plate.get_well(name) for name in well_names]
         res_volumes = []
diff --git a/unilabos/devices/liquid_handling/prcxi/prcxi.py b/unilabos/devices/liquid_handling/prcxi/prcxi.py
index 4f96255..453f506 100644
--- a/unilabos/devices/liquid_handling/prcxi/prcxi.py
+++ b/unilabos/devices/liquid_handling/prcxi/prcxi.py
@@ -590,7 +590,7 @@ class PRCXI9300Handler(LiquidHandlerAbstract):
         return super().set_liquid(wells, liquid_names, volumes)
 
     def set_liquid_from_plate(
-        self, plate: ResourceSlot, well_names: list[str], liquid_names: list[str], volumes: list[float]
+        self, plate: List[ResourceSlot], well_names: list[str], liquid_names: list[str], volumes: list[float]
     ) -> SetLiquidFromPlateReturn:
         return super().set_liquid_from_plate(plate, well_names, liquid_names, volumes)
 
diff --git a/unilabos/registry/devices/liquid_handler.yaml b/unilabos/registry/devices/liquid_handler.yaml
index b2612e7..1cd48f2 100644
--- a/unilabos/registry/devices/liquid_handler.yaml
+++ b/unilabos/registry/devices/liquid_handler.yaml
@@ -9451,78 +9451,81 @@ liquid_handler.prcxi:
                     type: string
                   type: array
                 plate:
-                  properties:
-                    category:
-                      type: string
-                    children:
-                      items:
+                  items:
+                    properties:
+                      category:
                         type: string
-                      type: array
-                    config:
-                      type: string
-                    data:
-                      type: string
-                    id:
-                      type: string
-                    name:
-                      type: string
-                    parent:
-                      type: string
-                    pose:
-                      properties:
-                        orientation:
-                          properties:
-                            w:
-                              type: number
-                            x:
-                              type: number
-                            y:
-                              type: number
-                            z:
-                              type: number
-                          required:
-                          - x
-                          - y
-                          - z
-                          - w
-                          title: orientation
-                          type: object
-                        position:
-                          properties:
-                            x:
-                              type: number
-                            y:
-                              type: number
-                            z:
-                              type: number
-                          required:
-                          - x
-                          - y
-                          - z
-                          title: position
-                          type: object
-                      required:
-                      - position
-                      - orientation
-                      title: pose
-                      type: object
-                    sample_id:
-                      type: string
-                    type:
-                      type: string
-                  required:
-                  - id
-                  - name
-                  - sample_id
-                  - children
-                  - parent
-                  - type
-                  - category
-                  - pose
-                  - config
-                  - data
+                      children:
+                        items:
+                          type: string
+                        type: array
+                      config:
+                        type: string
+                      data:
+                        type: string
+                      id:
+                        type: string
+                      name:
+                        type: string
+                      parent:
+                        type: string
+                      pose:
+                        properties:
+                          orientation:
+                            properties:
+                              w:
+                                type: number
+                              x:
+                                type: number
+                              y:
+                                type: number
+                              z:
+                                type: number
+                            required:
+                            - x
+                            - y
+                            - z
+                            - w
+                            title: orientation
+                            type: object
+                          position:
+                            properties:
+                              x:
+                                type: number
+                              y:
+                                type: number
+                              z:
+                                type: number
+                            required:
+                            - x
+                            - y
+                            - z
+                            title: position
+                            type: object
+                        required:
+                        - position
+                        - orientation
+                        title: pose
+                        type: object
+                      sample_id:
+                        type: string
+                      type:
+                        type: string
+                    required:
+                    - id
+                    - name
+                    - sample_id
+                    - children
+                    - parent
+                    - type
+                    - category
+                    - pose
+                    - config
+                    - data
+                    title: plate
+                    type: object
                   title: plate
-                  type: object
+                  type: array
                 volumes:
                   items:
                     type: number
@@ -9544,8 +9547,7 @@ liquid_handler.prcxi:
                   title: Plate
                   type: array
                 volumes:
-                  items:
-                    type: number
+                  items: {}
                   title: Volumes
                   type: array
                 wells:
diff --git a/unilabos/ros/nodes/presets/host_node.py b/unilabos/ros/nodes/presets/host_node.py
index e95b393..6d5e2b4 100644
--- a/unilabos/ros/nodes/presets/host_node.py
+++ b/unilabos/ros/nodes/presets/host_node.py
@@ -1180,7 +1180,7 @@ class HostNode(BaseROS2DeviceNode):
         """
         更新节点信息回调
         """
-        # self.lab_logger().info(f"[Host Node] Node info update request received: {request}")
+        self.lab_logger().trace(f"[Host Node] Node info update request received: {request}")
         try:
             from unilabos.app.communication import get_communication_client
             from unilabos.app.web.client import HTTPClient, http_client
diff --git a/unilabos/test/experiments/prcxi_9320_slim.json b/unilabos/test/experiments/prcxi_9320_slim.json
new file mode 100644
index 0000000..85bc90c
--- /dev/null
+++ b/unilabos/test/experiments/prcxi_9320_slim.json
@@ -0,0 +1,795 @@
+{
+  "nodes": [
+    {
+      "id": "PRCXI",
+      "name": "PRCXI",
+      "type": "device",
+      "class": "liquid_handler.prcxi",
+      "parent": "",
+      "pose": {
+        "size": {
+          "width": 562,
+          "height": 394,
+          "depth": 0
+        }
+      },
+      "config": {
+        "axis": "Left",
+        "deck": {
+          "_resource_type": "unilabos.devices.liquid_handling.prcxi.prcxi:PRCXI9300Deck",
+          "_resource_child_name": "PRCXI_Deck"
+        },
+        "host": "10.20.30.184",
+        "port": 9999,
+        "debug": true,
+        "setup": true,
+        "is_9320": true,
+        "timeout": 10,
+        "matrix_id": "5de524d0-3f95-406c-86dd-f83626ebc7cb",
+        "simulator": true,
+        "channel_num": 2
+      },
+      "data": {
+        "reset_ok": true
+      },
+      "schema": {},
+      "description": "",
+      "model": null,
+      "position": {
+        "x": 0,
+        "y": 240,
+        "z": 0
+      }
+    },
+    {
+      "id": "PRCXI_Deck",
+      "name": "PRCXI_Deck",
+
+      "children": [],
+      "parent": "PRCXI",
+      "type": "deck",
+      "class": "",
+      "position": {
+        "x": 10,
+        "y": 10,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Deck",
+        "size_x": 542,
+        "size_y": 374,
+        "size_z": 0,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "deck",
+        "barcode": null
+      },
+      "data": {}
+    },
+    {
+      "id": "T1",
+      "name": "T1",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 0,
+        "y": 288,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T1",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T2",
+      "name": "T2",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 138,
+        "y": 288,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T2",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T3",
+      "name": "T3",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 276,
+        "y": 288,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T3",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T4",
+      "name": "T4",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 414,
+        "y": 288,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T4",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T5",
+      "name": "T5",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 0,
+        "y": 192,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T5",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T6",
+      "name": "T6",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 138,
+        "y": 192,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T6",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T7",
+      "name": "T7",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 276,
+        "y": 192,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T7",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T8",
+      "name": "T8",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 414,
+        "y": 192,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T8",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T9",
+      "name": "T9",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 0,
+        "y": 96,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T9",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T10",
+      "name": "T10",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 138,
+        "y": 96,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T10",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T11",
+      "name": "T11",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 276,
+        "y": 96,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T11",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T12",
+      "name": "T12",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 414,
+        "y": 96,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T12",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T13",
+      "name": "T13",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 0,
+        "y": 0,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T13",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T14",
+      "name": "T14",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 138,
+        "y": 0,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T14",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T15",
+      "name": "T15",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 276,
+        "y": 0,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T15",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    },
+    {
+      "id": "T16",
+      "name": "T16",
+      "children": [],
+      "parent": "PRCXI_Deck",
+      "type": "plate",
+      "class": "",
+      "position": {
+        "x": 414,
+        "y": 0,
+        "z": 0
+      },
+      "config": {
+        "type": "PRCXI9300Container",
+        "size_x": 127,
+        "size_y": 85.5,
+        "size_z": 10,
+        "rotation": {
+          "x": 0,
+          "y": 0,
+          "z": 0,
+          "type": "Rotation"
+        },
+        "category": "plate",
+        "model": null,
+        "barcode": null,
+        "ordering": {},
+        "sites": [
+          {
+            "label": "T16",
+            "visible": true,
+            "position": { "x": 0, "y": 0, "z": 0 },
+            "size": { "width": 128.0, "height": 86, "depth": 0 },
+            "content_type": [
+              "plate",
+              "tip_rack",
+              "plates",
+              "tip_racks",
+              "tube_rack"
+            ]
+          }
+        ]
+      },
+      "data": {}
+    }
+  ],
+  "edges": []
+}
diff --git a/unilabos/workflow/common.py b/unilabos/workflow/common.py
index ad073d9..f4c0ac8 100644
--- a/unilabos/workflow/common.py
+++ b/unilabos/workflow/common.py
@@ -19,7 +19,9 @@
 
 第一步: 按 slot 去重创建 create_resource 节点（创建板子）
 --------------------------------------------------------------------------------
+- 首先创建一个 Group 节点（type="Group", minimized=true），用于包含所有 create_resource 节点
 - 遍历所有 reagent，按 slot 去重，为每个唯一的 slot 创建一个板子
+- 所有 create_resource 节点的 parent_uuid 指向 Group 节点，minimized=true
 - 生成参数:
     res_id: plate_slot_{slot}
     device_id: /PRCXI
@@ -29,11 +31,13 @@
 - 输出端口: labware（用于连接 set_liquid_from_plate）
 - 控制流: create_resource 之间通过 ready 端口串联
 
-示例: slot=1, slot=4 -> 创建 2 个 create_resource 节点
+示例: slot=1, slot=4 -> 创建 1 个 Group + 2 个 create_resource 节点
 
 第二步: 为每个 reagent 创建 set_liquid_from_plate 节点（设置液体）
 --------------------------------------------------------------------------------
+- 首先创建一个 Group 节点（type="Group", minimized=true），用于包含所有 set_liquid_from_plate 节点
 - 遍历所有 reagent，为每个试剂创建 set_liquid_from_plate 节点
+- 所有 set_liquid_from_plate 节点的 parent_uuid 指向 Group 节点，minimized=true
 - 生成参数:
     plate: []（通过连接传递，来自 create_resource 的 labware）
     well_names: ["A1", "A3", "A5"]（来自 reagent 的 well 数组）
@@ -76,6 +80,13 @@ transfer_liquid:
     输入: sources -> sources_identifier, targets -> targets_identifier
     输出: sources -> sources_out, targets -> targets_out
 
+==================== 设备名配置 (device_name) ====================
+
+每个节点都有 device_name 字段，指定在哪个设备上执行:
+- create_resource: device_name = "host_node"（固定）
+- set_liquid_from_plate: device_name = "PRCXI"（可配置，见 DEVICE_NAME_DEFAULT）
+- transfer_liquid 等动作: device_name = "PRCXI"（可配置，见 DEVICE_NAME_DEFAULT）
+
 ==================== 校验规则 ====================
 
 - 检查 sources/targets 是否在 reagent 中定义
@@ -97,6 +108,13 @@ Json = Dict[str, Any]
 
 # ==================== 默认配置 ====================
 
+# 设备名配置
+DEVICE_NAME_HOST = "host_node"  # create_resource 固定在 host_node 上执行
+DEVICE_NAME_DEFAULT = "PRCXI"  # transfer_liquid, set_liquid_from_plate 等动作的默认设备名
+
+# 节点类型
+NODE_TYPE_DEFAULT = "ILab"  # 所有节点的默认类型
+
 # create_resource 节点默认参数
 CREATE_RESOURCE_DEFAULTS = {
     "device_id": "/PRCXI",
@@ -367,6 +385,21 @@ def build_protocol_graph(
                 "res_id": res_id,
             }
 
+    # 创建 Group 节点，包含所有 create_resource 节点
+    group_node_id = str(uuid.uuid4())
+    G.add_node(
+        group_node_id,
+        name="Resources Group",
+        type="Group",
+        parent_uuid="",
+        lab_node_type="Device",
+        template_name="",
+        resource_name="",
+        footer="",
+        minimized=True,
+        param=None,
+    )
+
     # 为每个唯一的 slot 创建 create_resource 节点
     res_index = 0
     last_create_resource_id = None
@@ -383,6 +416,10 @@ def build_protocol_graph(
             description=f"Create plate on slot {slot}",
             lab_node_type="Labware",
             footer="create_resource-host_node",
+            device_name=DEVICE_NAME_HOST,
+            type=NODE_TYPE_DEFAULT,
+            parent_uuid=group_node_id,  # 指向 Group 节点
+            minimized=True,  # 折叠显示
             param={
                 "res_id": res_id,
                 "device_id": CREATE_RESOURCE_DEFAULTS["device_id"],
@@ -400,6 +437,21 @@ def build_protocol_graph(
         last_create_resource_id = node_id
 
     # ==================== 第二步：为每个 reagent 创建 set_liquid_from_plate 节点 ====================
+    # 创建 Group 节点，包含所有 set_liquid_from_plate 节点
+    set_liquid_group_id = str(uuid.uuid4())
+    G.add_node(
+        set_liquid_group_id,
+        name="SetLiquid Group",
+        type="Group",
+        parent_uuid="",
+        lab_node_type="Device",
+        template_name="",
+        resource_name="",
+        footer="",
+        minimized=True,
+        param=None,
+    )
+
     set_liquid_index = 0
     last_set_liquid_id = last_create_resource_id  # set_liquid_from_plate 连接在 create_resource 之后
 
@@ -430,6 +482,10 @@ def build_protocol_graph(
             description=f"Set liquid: {labware_id}",
             lab_node_type="Reagent",
             footer="set_liquid_from_plate-liquid_handler.prcxi",
+            device_name=DEVICE_NAME_DEFAULT,
+            type=NODE_TYPE_DEFAULT,
+            parent_uuid=set_liquid_group_id,  # 指向 Group 节点
+            minimized=True,  # 折叠显示
             param={
                 "plate": [],  # 通过连接传递
                 "well_names": wells,  # 孔位名数组，如 ["A1", "A3", "A5"]
@@ -544,9 +600,11 @@ def build_protocol_graph(
             if param_key in params:
                 params[param_key] = []
 
-        # 更新 step 的 param 和 footer
+        # 更新 step 的 param、footer、device_name 和 type
         step_copy = step.copy()
         step_copy["param"] = params
+        step_copy["device_name"] = DEVICE_NAME_DEFAULT  # 动作节点使用默认设备名
+        step_copy["type"] = NODE_TYPE_DEFAULT  # 节点类型
 
         # 如果有警告，修改 footer 添加警告标记（警告放前面）
         if warnings: