diff --git a/model/ProjectModel/BlockManage.py b/model/ProjectModel/BlockManage.py
index b8cdc40..d2e834c 100644
--- a/model/ProjectModel/BlockManage.py
+++ b/model/ProjectModel/BlockManage.py
@@ -14,17 +14,34 @@ class BlockType(Enum):
     FB = 2
 
 class BlockManage():
-    address = 66
-    def __init__(self):
+    _instance = None
+    _dpv1Master = None
+
+    def __new__(cls, address):
+        if not cls._instance:
+            cls._instance = super().__new__(cls)
+        return cls._instance
+
+    def __init__(self, address = 66):
         self.DPV1Master = DPV1Master('192.168.3.10', 502)
+        self.address = address
+        print(self.address, self)
+        self.initBlocks()
+
+    @property
+    def DPV1Master(self):
+        if not _dpv1Master:
+            self._dpv1Master = DPV1Master('192.168.3.10', 502)
+        return self._dpv1Master
+    
+    def initBlocks(self):
+        if not self.DPV1Master.judgeSlave(self.address):
+            return
         self.blockDict = {
         BlockType.PB : [],
         BlockType.TB : [],
         BlockType.FB : [],
         }
-        self.initBlocks()
-    
-    def initBlocks(self):
         dirHeadDatas = self.DPV1Master.readParm(address = self.address, slot = 1, index = 0, length = 12)
         DirID = dirHeadDatas[0]       # 目录id
         DirRevNum = dirHeadDatas[1]   # 目录版本号
@@ -78,17 +95,18 @@ class Block():
         self.addParms()
     
     def addParms(self):
-        pass
-        # getParmsFunc = {
-        #     BlockType.PB: PhysicalBlock.getallParame,
-        #     BlockType.TB: AIFunctionBlock.getallParame,
-        #     BlockType.FB: PressureTranslationBlock.getallParame,
-        # }.get(self.blockType, lambda: [])
+        # pass
+        getParmsFunc = {
+            BlockType.PB: PhysicalBlock.getallParame,
+            BlockType.TB: AIFunctionBlock.getallParame,
+            BlockType.FB: PressureTranslationBlock.getallParame,
+        }.get(self.blockType, lambda: [])
         
-        # parms_data = getParmsFunc()
+        parms_data = getParmsFunc()
 
 
 
 if __name__ == '__main__':
-    b = BlockManage()
+    b = BlockManage(address = 55)
+    c = BlockManage(address = 77)
     # b.initBlock()
\ No newline at end of file
diff --git a/protocol/ModBus/DPV1Master.py b/protocol/ModBus/DPV1Master.py
index 8fa88d7..d79cbbc 100644
--- a/protocol/ModBus/DPV1Master.py
+++ b/protocol/ModBus/DPV1Master.py
@@ -7,6 +7,25 @@ import struct
 import threading
 import time
 # from protocol.ModBus.ByteOrder import *
+import threading
+
+class SearchSlaveThread(threading.Thread):
+    def __init__(self, callback, master):
+        super().__init__()
+        self.stopEvent = threading.Event()
+        self.callback = callback
+        self.master = master
+
+    def run(self):
+        for address in range(1, 126):
+            if not self.stopEvent.is_set():
+                self.callback(address, self.master.judgeSlave(address))
+
+            
+    def stop(self):
+        self.stopEvent.set()
+
+
 
 
 class DPV1Master():
@@ -43,31 +62,12 @@ class DPV1Master():
         return all(x == 0 for x in tup)
 
     
-    def searchMaster(self, callback = None):
-        def search():
-            for address in range(1, 126):
-                hexAddress = address.to_bytes(1, byteorder='little')
-                searchByteStream = b'\x01' + hexAddress + b'\x01\x00\xF0\x00'
-                searchDate = struct.unpack('>hhh', searchByteStream)
-                self.writeMultipleRegister(1, 750, searchDate)
-                time.sleep(0.3)
-                dir = self.readHoldingRegisters(1, 750, 6)
-                if not self.areAllZeros(dir) and dir != 'error':     
-                    callback(address, True)
-                else:
-                    callback(address, False)
-                self.writeMultipleRegister(1, 750, self.resetData)
-                time.sleep(0.1)
-                # print(address, dir)
-                # if callable(callback):
-        if not self.master:
-            callback(125, False)
-            return
-        self.searchMasterThread = threading.Thread(target=search)
-        self.searchMasterThread.start()
+    def searchSlave(self, callback = None):
+        self.searchSlaveThread = SearchSlaveThread(callback = callback, master = self)
+        self.searchSlaveThread.start()
     
     def closeThread(self):
-        self.searchMasterThread.join()
+        self.searchSlaveThread.stop()
 
     def readParm(self, address, slot, index, length, callback = None):
         hexAddress = address.to_bytes(1, byteorder='little')
@@ -85,6 +85,19 @@ class DPV1Master():
             return
         return value
 
+    def judgeSlave(self, address):
+        hexAddress = address.to_bytes(1, byteorder='little')
+        searchByteStream = b'\x01' + hexAddress + b'\x01\x00\xF0\x00'
+        searchDate = struct.unpack('>hhh', searchByteStream)
+        self.writeMultipleRegister(1, 750, searchDate)
+        time.sleep(0.3)
+        dir = self.readHoldingRegisters(1, 750, 6)
+        self.writeMultipleRegister(1, 750, self.resetData)
+        time.sleep(0.1)
+        if not self.areAllZeros(dir) and dir != 'error':
+            return True
+        else:
+            return False
 
 
     # def readInputRegisters(self, slaveId, startAddress, varNums, order = 'ABCD'):