Add PRCXI 9300 (3x2) deck layout support via model parameter

PRCXI9300Deck now accepts model="9300"|"9320" to auto-select 6-slot or
16-slot layout. DefaultLayout gains default_layout for 9300 with T6 as
trash. PRCXI9300Handler auto-derives is_9320 from deck.model when not
explicitly passed. Includes 9300 slim experiment JSON and test fixes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

test/devices/test_prcxi.py

@@ -0,0 +1,539 @@
+import pytest
+import json
+import os
+import asyncio
+import collections
+from typing import List, Dict, Any
+
+from pylabrobot.resources import Coordinate
+from pylabrobot.resources.opentrons.tip_racks import opentrons_96_tiprack_300ul, opentrons_96_tiprack_10ul
+from pylabrobot.resources.opentrons.plates import corning_96_wellplate_360ul_flat, nest_96_wellplate_2ml_deep
+
+from unilabos.devices.liquid_handling.prcxi.prcxi import (
+    PRCXI9300Deck,
+    PRCXI9300Container,
+    PRCXI9300Trash,
+    PRCXI9300Handler,
+    PRCXI9300Backend,
+    DefaultLayout,
+    Material,
+    WorkTablets,
+    MatrixInfo
+)
+
+
+@pytest.fixture
+def prcxi_materials() -> Dict[str, Any]:
+    """加载 PRCXI 物料数据"""
+    print("加载 PRCXI 物料数据...")
+    material_path = os.path.join(os.path.dirname(__file__), "..", "..", "unilabos", "devices", "liquid_handling", "prcxi", "prcxi_material.json")
+    with open(material_path, "r", encoding="utf-8") as f:
+        data = json.load(f)
+    print(f"加载了 {len(data)} 条物料数据")
+    return data
+
+
+@pytest.fixture
+def prcxi_9300_deck() -> PRCXI9300Deck:
+    """创建 PRCXI 9300 工作台"""
+    return PRCXI9300Deck(name="PRCXI_Deck_9300", size_x=100, size_y=100, size_z=100, model="9300")
+
+
+@pytest.fixture
+def prcxi_9320_deck() -> PRCXI9300Deck:
+    """创建 PRCXI 9320 工作台"""
+    return PRCXI9300Deck(name="PRCXI_Deck_9320", size_x=100, size_y=100, size_z=100, model="9320")
+
+
+@pytest.fixture
+def prcxi_9300_handler(prcxi_9300_deck) -> PRCXI9300Handler:
+    """创建 PRCXI 9300 处理器（模拟模式）"""
+    return PRCXI9300Handler(
+        deck=prcxi_9300_deck,
+        host="192.168.1.201",
+        port=9999,
+        timeout=10.0,
+        channel_num=8,
+        axis="Left",
+        setup=False,
+        debug=True,
+        simulator=True,
+        matrix_id="test-matrix-9300"
+    )
+
+
+@pytest.fixture
+def prcxi_9320_handler(prcxi_9320_deck) -> PRCXI9300Handler:
+    """创建 PRCXI 9320 处理器（模拟模式）"""
+    return PRCXI9300Handler(
+        deck=prcxi_9320_deck,
+        host="192.168.1.201",
+        port=9999,
+        timeout=10.0,
+        channel_num=1,
+        axis="Right",
+        setup=False,
+        debug=True,
+        simulator=True,
+        matrix_id="test-matrix-9320",
+        is_9320=True
+    )
+
+
+@pytest.fixture
+def tip_rack_300ul(prcxi_materials) -> PRCXI9300Container:
+    """创建 300μL 枪头盒"""
+    tip_rack = PRCXI9300Container(
+        name="tip_rack_300ul",
+        size_x=50,
+        size_y=50,
+        size_z=10,
+        category="tip_rack",
+        ordering=collections.OrderedDict()
+    )
+    tip_rack.load_state({
+        "Material": {
+            "uuid": prcxi_materials["300μL Tip头"]["uuid"],
+            "Code": "ZX-001-300",
+            "Name": "300μL Tip头"
+        }
+    })
+    return tip_rack
+
+
+@pytest.fixture
+def tip_rack_10ul(prcxi_materials) -> PRCXI9300Container:
+    """创建 10μL 枪头盒"""
+    tip_rack = PRCXI9300Container(
+        name="tip_rack_10ul",
+        size_x=50,
+        size_y=50,
+        size_z=10,
+        category="tip_rack",
+        ordering=collections.OrderedDict()
+    )
+    tip_rack.load_state({
+        "Material": {
+            "uuid": prcxi_materials["10μL加长 Tip头"]["uuid"],
+            "Code": "ZX-001-10+",
+            "Name": "10μL加长 Tip头"
+        }
+    })
+    return tip_rack
+
+
+@pytest.fixture
+def well_plate_96(prcxi_materials) -> PRCXI9300Container:
+    """创建 96 孔板"""
+    plate = PRCXI9300Container(
+        name="well_plate_96",
+        size_x=50,
+        size_y=50,
+        size_z=10,
+        category="plate",
+        ordering=collections.OrderedDict()
+    )
+    plate.load_state({
+        "Material": {
+            "uuid": prcxi_materials["96深孔板"]["uuid"],
+            "Code": "ZX-019-2.2",
+            "Name": "96深孔板"
+        }
+    })
+    return plate
+
+
+@pytest.fixture
+def deep_well_plate(prcxi_materials) -> PRCXI9300Container:
+    """创建深孔板"""
+    plate = PRCXI9300Container(
+        name="deep_well_plate",
+        size_x=50,
+        size_y=50,
+        size_z=10,
+        category="plate",
+        ordering=collections.OrderedDict()
+    )
+    plate.load_state({
+        "Material": {
+            "uuid": prcxi_materials["96深孔板"]["uuid"],
+            "Code": "ZX-019-2.2",
+            "Name": "96深孔板"
+        }
+    })
+    return plate
+
+
+@pytest.fixture
+def trash_container(prcxi_materials) -> PRCXI9300Trash:
+    """创建垃圾桶"""
+    trash = PRCXI9300Trash(name="trash", size_x=50, size_y=50, size_z=10, category="trash")
+    trash.load_state({
+        "Material": {
+            "uuid": prcxi_materials["废弃槽"]["uuid"]
+        }
+    })
+    return trash
+
+
+@pytest.fixture
+def default_layout_9300() -> DefaultLayout:
+    """创建 PRCXI 9300 默认布局"""
+    return DefaultLayout("PRCXI9300")
+
+
+@pytest.fixture
+def default_layout_9320() -> DefaultLayout:
+    """创建 PRCXI 9320 默认布局"""
+    return DefaultLayout("PRCXI9320")
+
+
+class TestPRCXIDeckSetup:
+    """测试 PRCXI 工作台设置功能"""
+
+    def test_prcxi_9300_deck_creation(self, prcxi_9300_deck):
+        """测试 PRCXI 9300 工作台创建"""
+        assert prcxi_9300_deck.name == "PRCXI_Deck_9300"
+        assert len(prcxi_9300_deck.sites) == 6
+        assert prcxi_9300_deck._size_x == 100
+        assert prcxi_9300_deck._size_y == 100
+        assert prcxi_9300_deck._size_z == 100
+
+    def test_prcxi_9320_deck_creation(self, prcxi_9320_deck):
+        """测试 PRCXI 9320 工作台创建"""
+        assert prcxi_9320_deck.name == "PRCXI_Deck_9320"
+        assert len(prcxi_9320_deck.sites) == 16
+        assert prcxi_9320_deck._size_x == 100
+        assert prcxi_9320_deck._size_y == 100
+        assert prcxi_9320_deck._size_z == 100
+
+    def test_container_assignment(self, prcxi_9300_deck, tip_rack_300ul, well_plate_96, trash_container):
+        """测试容器分配到工作台"""
+        # 分配枪头盒
+        prcxi_9300_deck.assign_child_resource(tip_rack_300ul, location=Coordinate(0, 0, 0))
+        assert tip_rack_300ul in prcxi_9300_deck.children
+        
+        # 分配孔板
+        prcxi_9300_deck.assign_child_resource(well_plate_96, location=Coordinate(0, 0, 0))
+        assert well_plate_96 in prcxi_9300_deck.children
+        
+        # 分配垃圾桶
+        prcxi_9300_deck.assign_child_resource(trash_container, location=Coordinate(0, 0, 0))
+        assert trash_container in prcxi_9300_deck.children
+
+    def test_container_material_loading(self, tip_rack_300ul, well_plate_96, prcxi_materials):
+        """测试容器物料信息加载"""
+        # 测试枪头盒物料信息
+        tip_material = tip_rack_300ul._unilabos_state["Material"]
+        assert tip_material["uuid"] == prcxi_materials["300μL Tip头"]["uuid"]
+        assert tip_material["Name"] == "300μL Tip头"
+        
+        # 测试孔板物料信息
+        plate_material = well_plate_96._unilabos_state["Material"]
+        assert plate_material["uuid"] == prcxi_materials["96深孔板"]["uuid"]
+        assert plate_material["Name"] == "96深孔板"
+
+
+class TestPRCXISingleStepOperations:
+    """测试 PRCXI 单步操作功能"""
+
+    @pytest.mark.asyncio
+    async def test_pick_up_tips_single_channel(self, prcxi_9320_handler, prcxi_9320_deck, tip_rack_10ul):
+        """测试单通道拾取枪头"""
+        # 将枪头盒添加到工作台
+        prcxi_9320_deck.assign_child_resource(tip_rack_10ul, location=Coordinate(0, 0, 0))
+        
+        # 初始化处理器
+        await prcxi_9320_handler.setup()
+        
+        # 设置枪头盒
+        prcxi_9320_handler.set_tiprack([tip_rack_10ul])
+        
+        # 创建模拟的枪头位置
+        from pylabrobot.resources import TipSpot, Tip
+        tip = Tip(has_filter=False, total_tip_length=10, maximal_volume=10, fitting_depth=5)
+        tip_spot = TipSpot("A1", size_x=1, size_y=1, size_z=1, make_tip=lambda: tip)
+        tip_rack_10ul.assign_child_resource(tip_spot, location=Coordinate(0, 0, 0))
+        
+        # 直接测试后端方法
+        from pylabrobot.liquid_handling import Pickup
+        pickup = Pickup(resource=tip_spot, offset=None, tip=tip)
+        await prcxi_9320_handler._unilabos_backend.pick_up_tips([pickup], [0])
+        
+        # 验证步骤已添加到待办列表
+        assert len(prcxi_9320_handler._unilabos_backend.steps_todo_list) == 1
+        step = prcxi_9320_handler._unilabos_backend.steps_todo_list[0]
+        assert step["Function"] == "Load"
+
+    @pytest.mark.asyncio
+    async def test_pick_up_tips_multi_channel(self, prcxi_9300_handler, tip_rack_300ul):
+        """测试多通道拾取枪头"""
+        # 设置枪头盒
+        prcxi_9300_handler.set_tiprack([tip_rack_300ul])
+        
+        # 拾取8个枪头
+        tip_spots = tip_rack_300ul.children[:8]
+        await prcxi_9300_handler.pick_up_tips(tip_spots, [0, 1, 2, 3, 4, 5, 6, 7])
+        
+        # 验证步骤已添加到待办列表
+        assert len(prcxi_9300_handler._unilabos_backend.steps_todo_list) == 1
+        step = prcxi_9300_handler._unilabos_backend.steps_todo_list[0]
+        assert step["Function"] == "Load"
+
+    @pytest.mark.asyncio
+    async def test_aspirate_single_channel(self, prcxi_9320_handler, well_plate_96):
+        """测试单通道吸取液体"""
+        # 设置液体
+        well = well_plate_96.get_item("A1")
+        prcxi_9320_handler.set_liquid([well], ["water"], [50])
+        
+        # 吸取液体
+        await prcxi_9320_handler.aspirate([well], [50], [0])
+        
+        # 验证步骤已添加到待办列表
+        assert len(prcxi_9320_handler._unilabos_backend.steps_todo_list) == 1
+        step = prcxi_9320_handler._unilabos_backend.steps_todo_list[0]
+        assert step["Function"] == "Imbibing"
+        assert step["DosageNum"] == 50
+
+    @pytest.mark.asyncio
+    async def test_dispense_single_channel(self, prcxi_9320_handler, well_plate_96):
+        """测试单通道分配液体"""
+        # 分配液体
+        well = well_plate_96.get_item("A1")
+        await prcxi_9320_handler.dispense([well], [25], [0])
+        
+        # 验证步骤已添加到待办列表
+        assert len(prcxi_9320_handler._unilabos_backend.steps_todo_list) == 1
+        step = prcxi_9320_handler._unilabos_backend.steps_todo_list[0]
+        assert step["Function"] == "Tapping"
+        assert step["DosageNum"] == 25
+
+    @pytest.mark.asyncio
+    async def test_mix_single_channel(self, prcxi_9320_handler, well_plate_96):
+        """测试单通道混合液体"""
+        # 混合液体
+        well = well_plate_96.get_item("A1")
+        await prcxi_9320_handler.mix([well], mix_time=3, mix_vol=50)
+        
+        # 验证步骤已添加到待办列表
+        assert len(prcxi_9320_handler._unilabos_backend.steps_todo_list) == 1
+        step = prcxi_9320_handler._unilabos_backend.steps_todo_list[0]
+        assert step["Function"] == "Blending"
+        assert step["BlendingTimes"] == 3
+        assert step["DosageNum"] == 50
+
+    @pytest.mark.asyncio
+    async def test_drop_tips_to_trash(self, prcxi_9320_handler, trash_container):
+        """测试丢弃枪头到垃圾桶"""
+        # 丢弃枪头
+        await prcxi_9320_handler.drop_tips([trash_container], [0])
+        
+        # 验证步骤已添加到待办列表
+        assert len(prcxi_9320_handler._unilabos_backend.steps_todo_list) == 1
+        step = prcxi_9320_handler._unilabos_backend.steps_todo_list[0]
+        assert step["Function"] == "UnLoad"
+
+    @pytest.mark.asyncio
+    async def test_discard_tips(self, prcxi_9320_handler):
+        """测试丢弃枪头"""
+        # 丢弃枪头
+        await prcxi_9320_handler.discard_tips([0])
+        
+        # 验证步骤已添加到待办列表
+        assert len(prcxi_9320_handler._unilabos_backend.steps_todo_list) == 1
+        step = prcxi_9320_handler._unilabos_backend.steps_todo_list[0]
+        assert step["Function"] == "UnLoad"
+
+    @pytest.mark.asyncio
+    async def test_liquid_transfer_workflow(self, prcxi_9320_handler, tip_rack_10ul, well_plate_96):
+        """测试完整的液体转移工作流程"""
+        # 设置枪头盒和液体
+        prcxi_9320_handler.set_tiprack([tip_rack_10ul])
+        source_well = well_plate_96.get_item("A1")
+        target_well = well_plate_96.get_item("B1")
+        prcxi_9320_handler.set_liquid([source_well], ["water"], [100])
+        
+        # 创建协议
+        await prcxi_9320_handler.create_protocol(protocol_name="Test Transfer Protocol")
+        
+        # 执行转移流程
+        tip_spot = tip_rack_10ul.get_item("A1")
+        await prcxi_9320_handler.pick_up_tips([tip_spot], [0])
+        await prcxi_9320_handler.aspirate([source_well], [50], [0])
+        await prcxi_9320_handler.dispense([target_well], [50], [0])
+        await prcxi_9320_handler.discard_tips([0])
+        
+        # 验证所有步骤都已添加
+        assert len(prcxi_9320_handler._unilabos_backend.steps_todo_list) == 4
+        functions = [step["Function"] for step in prcxi_9320_handler._unilabos_backend.steps_todo_list]
+        assert functions == ["Load", "Imbibing", "Tapping", "UnLoad"]
+
+
+class TestPRCXILayoutRecommendation:
+    """测试 PRCXI 板位推荐功能"""
+
+    def test_9300_layout_creation(self, default_layout_9300):
+        """测试 PRCXI 9300 布局创建"""
+        layout_info = default_layout_9300.get_layout()
+        assert layout_info["rows"] == 2
+        assert layout_info["columns"] == 3
+        assert len(layout_info["layout"]) == 6
+        assert layout_info["trash_slot"] == 6
+        assert "waste_liquid_slot" not in layout_info
+
+    def test_9320_layout_creation(self, default_layout_9320):
+        """测试 PRCXI 9320 布局创建"""
+        layout_info = default_layout_9320.get_layout()
+        assert layout_info["rows"] == 4
+        assert layout_info["columns"] == 4
+        assert len(layout_info["layout"]) == 16
+        assert layout_info["trash_slot"] == 16
+        assert layout_info["waste_liquid_slot"] == 12
+
+    def test_layout_recommendation_9320(self, default_layout_9320, prcxi_materials):
+        """测试 PRCXI 9320 板位推荐功能"""
+        # 添加物料信息
+        default_layout_9320.add_lab_resource(prcxi_materials)
+        
+        # 推荐布局
+        needs = [
+            ("reagent_1", "96 细胞培养皿", 3),
+            ("reagent_2", "12道储液槽", 1),
+            ("reagent_3", "200μL Tip头", 7),
+            ("reagent_4", "10μL加长 Tip头", 1),
+        ]
+        
+        matrix_layout, layout_list = default_layout_9320.recommend_layout(needs)
+        
+        # 验证返回结果
+        assert "MatrixId" in matrix_layout
+        assert "MatrixName" in matrix_layout
+        assert "MatrixCount" in matrix_layout
+        assert "WorkTablets" in matrix_layout
+        assert len(layout_list) == 12  # 3+1+7+1 = 12个位置
+        
+        # 验证推荐的位置不包含预留位置
+        reserved_positions = {12, 16}
+        recommended_positions = [item["positions"] for item in layout_list]
+        for pos in recommended_positions:
+            assert pos not in reserved_positions
+
+    def test_layout_recommendation_insufficient_space(self, default_layout_9320, prcxi_materials):
+        """测试板位推荐空间不足的情况"""
+        # 添加物料信息
+        default_layout_9320.add_lab_resource(prcxi_materials)
+        
+        # 尝试推荐超过可用空间的布局
+        needs = [
+            ("reagent_1", "96 细胞培养皿", 15),  # 需要15个位置，但只有14个可用
+        ]
+        
+        with pytest.raises(ValueError, match="需要 .* 个位置，但只有 .* 个可用位置"):
+            default_layout_9320.recommend_layout(needs)
+
+    def test_layout_recommendation_material_not_found(self, default_layout_9320, prcxi_materials):
+        """测试板位推荐物料不存在的情况"""
+        # 添加物料信息
+        default_layout_9320.add_lab_resource(prcxi_materials)
+        
+        # 尝试推荐不存在的物料
+        needs = [
+            ("reagent_1", "不存在的物料", 1),
+        ]
+        
+        with pytest.raises(ValueError, match="Material .* not found in lab resources"):
+            default_layout_9320.recommend_layout(needs)
+
+
+class TestPRCXIBackendOperations:
+    """测试 PRCXI 后端操作功能"""
+
+    def test_backend_initialization(self, prcxi_9300_handler):
+        """测试后端初始化"""
+        backend = prcxi_9300_handler._unilabos_backend
+        assert isinstance(backend, PRCXI9300Backend)
+        assert backend._num_channels == 8
+        assert backend.debug is True
+
+    def test_protocol_creation(self, prcxi_9300_handler):
+        """测试协议创建"""
+        backend = prcxi_9300_handler._unilabos_backend
+        backend.create_protocol("Test Protocol")
+        assert backend.protocol_name == "Test Protocol"
+        assert len(backend.steps_todo_list) == 0
+
+    def test_channel_validation(self):
+        """测试通道验证"""
+        # 测试正确的8通道配置
+        valid_channels = [0, 1, 2, 3, 4, 5, 6, 7]
+        result = PRCXI9300Backend.check_channels(valid_channels)
+        assert result == valid_channels
+        
+        # 测试错误的通道配置
+        invalid_channels = [0, 1, 2, 3]
+        result = PRCXI9300Backend.check_channels(invalid_channels)
+        assert result == [0, 1, 2, 3, 4, 5, 6, 7]
+
+    def test_matrix_info_creation(self, prcxi_9300_handler):
+        """测试矩阵信息创建"""
+        backend = prcxi_9300_handler._unilabos_backend
+        backend.create_protocol("Test Protocol")
+        
+        # 模拟运行协议时的矩阵信息创建
+        run_time = 1234567890
+        matrix_info = MatrixInfo(
+            MatrixId=f"{int(run_time)}",
+            MatrixName=f"protocol_{run_time}",
+            MatrixCount=len(backend.tablets_info),
+            WorkTablets=backend.tablets_info,
+        )
+        
+        assert matrix_info["MatrixId"] == str(int(run_time))
+        assert matrix_info["MatrixName"] == f"protocol_{run_time}"
+        assert "WorkTablets" in matrix_info
+
+
+class TestPRCXIContainerOperations:
+    """测试 PRCXI 容器操作功能"""
+
+    def test_container_serialization(self, tip_rack_300ul):
+        """测试容器序列化"""
+        serialized = tip_rack_300ul.serialize_state()
+        assert "Material" in serialized
+        assert serialized["Material"]["Name"] == "300μL Tip头"
+
+    def test_container_deserialization(self, tip_rack_300ul):
+        """测试容器反序列化"""
+        # 序列化
+        serialized = tip_rack_300ul.serialize_state()
+        
+        # 创建新容器并反序列化
+        new_tip_rack = PRCXI9300Container(
+            name="new_tip_rack",
+            size_x=50,
+            size_y=50,
+            size_z=10,
+            category="tip_rack",
+            ordering=collections.OrderedDict()
+        )
+        new_tip_rack.load_state(serialized)
+        
+        assert new_tip_rack._unilabos_state["Material"]["Name"] == "300μL Tip头"
+
+    def test_trash_container_creation(self, prcxi_materials):
+        """测试垃圾桶容器创建"""
+        trash = PRCXI9300Trash(name="trash", size_x=50, size_y=50, size_z=10, category="trash")
+        trash.load_state({
+            "Material": {
+                "uuid": prcxi_materials["废弃槽"]["uuid"]
+            }
+        })
+        
+        assert trash.name == "trash"
+        assert trash._unilabos_state["Material"]["uuid"] == prcxi_materials["废弃槽"]["uuid"]
+
+
+if __name__ == "__main__":
+    # 运行测试
+    pytest.main([__file__, "-v"])

unilabos/devices/liquid_handling/prcxi/prcxi.py

@@ -93,24 +93,35 @@ class PRCXI9300Deck(Deck):
     该类定义了 PRCXI 9300 的工作台布局和槽位信息。
     """
 
-    # T1-T16 默认位置 (4列×4行, Y轴从上往下递减, T1在左上角)
-    _DEFAULT_SITE_POSITIONS = [
+    # 9320: 4列×4行 = 16 slots（Y轴从上往下递减, T1在左上角）
+    _9320_SITE_POSITIONS = [
         (0, 288, 0), (138, 288, 0), (276, 288, 0), (414, 288, 0),   # T1-T4   (第1行, 最上)
         (0, 192, 0), (138, 192, 0), (276, 192, 0), (414, 192, 0),   # T5-T8   (第2行)
         (0, 96, 0),  (138, 96, 0),  (276, 96, 0),  (414, 96, 0),    # T9-T12  (第3行)
         (0, 0, 0),   (138, 0, 0),   (276, 0, 0),   (414, 0, 0),     # T13-T16 (第4行, 最下)
     ]
+
+    # 9300: 3列×2行 = 6 slots，间距与9320相同（X: 138mm, Y: 96mm）
+    _9300_SITE_POSITIONS = [
+        (0, 96, 0),  (138, 96, 0),  (276, 96, 0),   # T1-T3 (第1行, 上)
+        (0, 0, 0),   (138, 0, 0),   (276, 0, 0),     # T4-T6 (第2行, 下)
+    ]
+
+    # 向后兼容别名
+    _DEFAULT_SITE_POSITIONS = _9320_SITE_POSITIONS
     _DEFAULT_SITE_SIZE = {"width": 128.0, "height": 86, "depth": 0}
     _DEFAULT_CONTENT_TYPE = ["plate", "tip_rack", "plates", "tip_racks", "tube_rack", "adaptor", "plateadapter", "module"]
 
     def __init__(self, name: str, size_x: float, size_y: float, size_z: float,
-                 sites: Optional[List[Dict[str, Any]]] = None, **kwargs):
+                 sites: Optional[List[Dict[str, Any]]] = None, model: str = "9320", **kwargs):
         super().__init__(size_x, size_y, size_z, name)
+        self.model = model
         if sites is not None:
             self.sites: List[Dict[str, Any]] = [dict(s) for s in sites]
         else:
+            positions = self._9300_SITE_POSITIONS if model == "9300" else self._9320_SITE_POSITIONS
             self.sites = []
-            for i, (x, y, z) in enumerate(self._DEFAULT_SITE_POSITIONS):
+            for i, (x, y, z) in enumerate(positions):
                 self.sites.append({
                     "label": f"T{i + 1}",
                     "visible": True,
@@ -174,6 +185,7 @@ class PRCXI9300Deck(Deck):
 
     def serialize(self) -> dict:
         data = super().serialize()
+        data["model"] = self.model
         sites_out = []
         for i, site in enumerate(self.sites):
             occupied = self._get_site_resource(i)
@@ -749,7 +761,7 @@ class PRCXI9300Handler(LiquidHandlerAbstract):
         simulator=False,
         step_mode=False,
         matrix_id="",
-        is_9320=False,
+        is_9320=None,
     ):
         tablets_info = []
         for site_id in range(len(deck.sites)):
@@ -762,6 +774,8 @@ class PRCXI9300Handler(LiquidHandlerAbstract):
                         Number=number, Code=f"T{number}", Material=child._unilabos_state["Material"]
                     )
                 )
+        if is_9320 is None:
+            is_9320 = getattr(deck, 'model', '9300') == '9320'
         if is_9320:
             print("当前设备是9320")
         # 始终初始化 step_mode 属性
@@ -1983,8 +1997,20 @@ class DefaultLayout:
             self.rows = 2
             self.columns = 3
             self.layout = [1, 2, 3, 4, 5, 6]
-            self.trash_slot = 3
-            self.waste_liquid_slot = 6
+            self.trash_slot = 6
+            self.default_layout = {
+                "MatrixId": f"{time.time()}",
+                "MatrixName": f"{time.time()}",
+                "MatrixCount": 6,
+                "WorkTablets": [
+                    {"Number": 1, "Code": "T1", "Material": {"uuid": "57b1e4711e9e4a32b529f3132fc5931f", "materialEnum": 0}},
+                    {"Number": 2, "Code": "T2", "Material": {"uuid": "57b1e4711e9e4a32b529f3132fc5931f", "materialEnum": 0}},
+                    {"Number": 3, "Code": "T3", "Material": {"uuid": "57b1e4711e9e4a32b529f3132fc5931f", "materialEnum": 0}},
+                    {"Number": 4, "Code": "T4", "Material": {"uuid": "57b1e4711e9e4a32b529f3132fc5931f", "materialEnum": 0}},
+                    {"Number": 5, "Code": "T5", "Material": {"uuid": "57b1e4711e9e4a32b529f3132fc5931f", "materialEnum": 0}},
+                    {"Number": 6, "Code": "T6", "Material": {"uuid": "730067cf07ae43849ddf4034299030e9", "materialEnum": 0}},  # trash
+                ],
+            }
 
         elif product_name == "PRCXI9320":
             self.rows = 4
@@ -2081,13 +2107,15 @@ class DefaultLayout:
             }
 
     def get_layout(self) -> Dict[str, Any]:
-        return {
+        result = {
             "rows": self.rows,
             "columns": self.columns,
             "layout": self.layout,
             "trash_slot": self.trash_slot,
-            "waste_liquid_slot": self.waste_liquid_slot,
         }
+        if hasattr(self, 'waste_liquid_slot'):
+            result["waste_liquid_slot"] = self.waste_liquid_slot
+        return result
 
     def get_trash_slot(self) -> int:
         return self.trash_slot
@@ -2105,15 +2133,18 @@ class DefaultLayout:
             if material_name not in self.labresource:
                 raise ValueError(f"Material {reagent_name} not found in lab resources.")
 
-            # 预留位置12和16不动
-        reserved_positions = {12, 16}
-        available_positions = [i for i in range(1, 17) if i not in reserved_positions]
+            # 预留位置动态计算
+        reserved_positions = {self.trash_slot}
+        if hasattr(self, 'waste_liquid_slot'):
+            reserved_positions.add(self.waste_liquid_slot)
+        total_slots = self.rows * self.columns
+        available_positions = [i for i in range(1, total_slots + 1) if i not in reserved_positions]
 
         # 计算总需求
         total_needed = sum(count for _, _, count in needs)
         if total_needed > len(available_positions):
             raise ValueError(
-                f"需要 {total_needed} 个位置，但只有 {len(available_positions)} 个可用位置（排除位置12和16）"
+                f"需要 {total_needed} 个位置，但只有 {len(available_positions)} 个可用位置（排除预留位置 {reserved_positions}）"
             )
 
             # 依次分配位置

unilabos/test/experiments/prcxi_9300_slim.json

@@ -0,0 +1,226 @@
+{
+    "nodes": [
+        {
+            "id": "PRCXI",
+            "name": "PRCXI",
+            "type": "device",
+            "class": "liquid_handler.prcxi",
+            "parent": "",
+            "pose": {
+                "size": {
+                    "width": 424,
+                    "height": 202,
+                    "depth": 0
+                }
+            },
+            "config": {
+                "axis": "Left",
+                "deck": {
+                    "_resource_type": "unilabos.devices.liquid_handling.prcxi.prcxi:PRCXI9300Deck",
+                    "_resource_child_name": "PRCXI_Deck"
+                },
+                "host": "10.20.30.167",
+                "port": 9999,
+                "debug": false,
+                "setup": true,
+                "timeout": 10,
+                "simulator": false,
+                "channel_num": 8
+            },
+            "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": 404,
+                "size_y": 182,
+                "size_z": 0,
+                "model": "9300",
+                "rotation": {
+                    "x": 0,
+                    "y": 0,
+                    "z": 0,
+                    "type": "Rotation"
+                },
+                "category": "deck",
+                "barcode": null,
+                "preferred_pickup_location": null,
+                "sites": [
+                    {
+                        "label": "T1",
+                        "visible": true,
+                        "occupied_by": null,
+                        "position": {
+                            "x": 0,
+                            "y": 96,
+                            "z": 0
+                        },
+                        "size": {
+                            "width": 128.0,
+                            "height": 86,
+                            "depth": 0
+                        },
+                        "content_type": [
+                            "plate",
+                            "tip_rack",
+                            "plates",
+                            "tip_racks",
+                            "tube_rack",
+                            "adaptor",
+                            "plateadapter",
+                            "module"
+                        ]
+                    },
+                    {
+                        "label": "T2",
+                        "visible": true,
+                        "occupied_by": null,
+                        "position": {
+                            "x": 138,
+                            "y": 96,
+                            "z": 0
+                        },
+                        "size": {
+                            "width": 128.0,
+                            "height": 86,
+                            "depth": 0
+                        },
+                        "content_type": [
+                            "plate",
+                            "tip_rack",
+                            "plates",
+                            "tip_racks",
+                            "tube_rack",
+                            "adaptor",
+                            "plateadapter",
+                            "module"
+                        ]
+                    },
+                    {
+                        "label": "T3",
+                        "visible": true,
+                        "occupied_by": null,
+                        "position": {
+                            "x": 276,
+                            "y": 96,
+                            "z": 0
+                        },
+                        "size": {
+                            "width": 128.0,
+                            "height": 86,
+                            "depth": 0
+                        },
+                        "content_type": [
+                            "plate",
+                            "tip_rack",
+                            "plates",
+                            "tip_racks",
+                            "tube_rack",
+                            "adaptor",
+                            "plateadapter",
+                            "module"
+                        ]
+                    },
+                    {
+                        "label": "T4",
+                        "visible": true,
+                        "occupied_by": null,
+                        "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",
+                            "adaptor",
+                            "plateadapter",
+                            "module"
+                        ]
+                    },
+                    {
+                        "label": "T5",
+                        "visible": true,
+                        "occupied_by": null,
+                        "position": {
+                            "x": 138,
+                            "y": 0,
+                            "z": 0
+                        },
+                        "size": {
+                            "width": 128.0,
+                            "height": 86,
+                            "depth": 0
+                        },
+                        "content_type": [
+                            "plate",
+                            "tip_rack",
+                            "plates",
+                            "tip_racks",
+                            "tube_rack",
+                            "adaptor",
+                            "plateadapter",
+                            "module"
+                        ]
+                    },
+                    {
+                        "label": "T6",
+                        "visible": true,
+                        "occupied_by": null,
+                        "position": {
+                            "x": 276,
+                            "y": 0,
+                            "z": 0
+                        },
+                        "size": {
+                            "width": 128.0,
+                            "height": 86,
+                            "depth": 0
+                        },
+                        "content_type": [
+                            "plate",
+                            "tip_rack",
+                            "plates",
+                            "tip_racks",
+                            "tube_rack",
+                            "adaptor",
+                            "plateadapter",
+                            "module"
+                        ]
+                    }
+                ]
+            },
+            "data": {}
+        }
+    ],
+    "edges": []
+}