diff --git a/nmodbus/handler/fn_coils.go b/nmodbus/handler/fn_coils.go
index a9896af..a686ed1 100644
--- a/nmodbus/handler/fn_coils.go
+++ b/nmodbus/handler/fn_coils.go
@@ -42,7 +42,7 @@ func (r *ReadCoils) Function(s *Handler, req protocol.Packet, resp protocol.Pack
 		}
 	}
 
-	s.HandleLogic(r.fnCode, register, numRegs, coils)
+	s.HandleLogic(r.fnCode, req, register, numRegs, coils)
 
 	resp.SetBody(data)
 	return &protocol.Success
@@ -73,7 +73,7 @@ func (r *WriteSingleCoil) Function(s *Handler, req protocol.Packet, resp protoco
 	dataMgr := s.DataManager(req.GetAddress())
 	dataMgr.WriteSingleCoil(register, byte(value))
 
-	s.HandleLogic(r.fnCode, register, 1, value)
+	s.HandleLogic(r.fnCode, req, register, 1, value)
 
 	resp.SetBody(data[0:4])
 
@@ -131,7 +131,7 @@ func (r *WriteMultipleCoils) Function(s *Handler, req protocol.Packet, resp prot
 	dataMgr := s.DataManager(req.GetAddress())
 	dataMgr.WriteCoils(idxList, values)
 
-	s.HandleLogic(r.fnCode, register, numRegs, values)
+	s.HandleLogic(r.fnCode, req, register, numRegs, values)
 
 	resp.SetBody(data[0:4])
 
diff --git a/nmodbus/handler/fn_discreteinputs.go b/nmodbus/handler/fn_discreteinputs.go
index 66dbd27..42237dd 100644
--- a/nmodbus/handler/fn_discreteinputs.go
+++ b/nmodbus/handler/fn_discreteinputs.go
@@ -41,7 +41,7 @@ func (r *ReadDiscreteInputs) Function(s *Handler, req protocol.Packet, resp prot
 		}
 	}
 
-	s.HandleLogic(r.fnCode, register, numRegs, data)
+	s.HandleLogic(r.fnCode, req, register, numRegs, data)
 
 	resp.SetBody(data)
 	return &protocol.Success
diff --git a/nmodbus/handler/fn_holdingregisters.go b/nmodbus/handler/fn_holdingregisters.go
index 390e163..d6c2a5e 100644
--- a/nmodbus/handler/fn_holdingregisters.go
+++ b/nmodbus/handler/fn_holdingregisters.go
@@ -30,7 +30,7 @@ func (r *ReadHoldingRegisters) Function(s *Handler, req protocol.Packet, resp pr
 
 	resp.SetBody(append([]byte{byte(numRegs * 2)}, util.Uint16ToBytes(s.byteOrder, data)...))
 
-	s.HandleLogic(r.fnCode, register, numRegs, data)
+	s.HandleLogic(r.fnCode, req, register, numRegs, data)
 
 	return &protocol.Success
 }
@@ -59,7 +59,7 @@ func (r *WriteHoldingRegister) Function(s *Handler, req protocol.Packet, resp pr
 
 	resp.SetBody(data[0:4])
 
-	s.HandleLogic(r.fnCode, register, 1, value)
+	s.HandleLogic(r.fnCode, req, register, 1, value)
 
 	return &protocol.Success
 }
@@ -104,7 +104,7 @@ func (r *WriteHoldingRegisters) Function(s *Handler, req protocol.Packet, resp p
 
 	resp.SetBody(data)
 
-	s.HandleLogic(r.fnCode, register, numRegs, values)
+	s.HandleLogic(r.fnCode, req, register, numRegs, values)
 
 	return err
 }
diff --git a/nmodbus/handler/fn_inputregisters.go b/nmodbus/handler/fn_inputregisters.go
index b1bcd9e..b229aaa 100644
--- a/nmodbus/handler/fn_inputregisters.go
+++ b/nmodbus/handler/fn_inputregisters.go
@@ -29,7 +29,7 @@ func (r *ReadInputRegisters) Function(s *Handler, req protocol.Packet, resp prot
 	data := dataMgr.ReadInputRegisters(register, endRegister)
 	resp.SetBody(append([]byte{byte(numRegs * 2)}, util.Uint16ToBytes(s.byteOrder, data)...))
 
-	s.HandleLogic(r.fnCode, register, numRegs, data)
+	s.HandleLogic(r.fnCode, req, register, numRegs, data)
 
 	return &protocol.Success
 }
diff --git a/nmodbus/handler/handler.go b/nmodbus/handler/handler.go
index f6e7ca8..0faa78b 100644
--- a/nmodbus/handler/handler.go
+++ b/nmodbus/handler/handler.go
@@ -28,13 +28,12 @@ type (
 		FnCode() uint8
 	}
 
-	LogicFunc func(startAddr, number int, val any)
+	LogicFunc func(pkg protocol.Packet, startAddr, number int, val any)
 )
 
 func NewHandler(byteOrder binary.ByteOrder) *Handler {
 	p := &Handler{
-		byteOrder: byteOrder,
-		//functions: make(map[uint8]FunctionFunc),
+		byteOrder:  byteOrder,
 		logics:     make(map[uint8]LogicFunc),
 		handlerMap: make(map[uint8]FunctionHandler),
 		dataMap:    make(map[uint8]*DataMgr),
@@ -97,10 +96,10 @@ func (p *Handler) Handle(conn *connection.Connection, pkg packet.IPacket) {
 	_ = conn.Send(resp.GetHeader(), resp.GetBody())
 }
 
-func (p *Handler) HandleLogic(fnCode uint8, startAddr, number int, val any) {
+func (p *Handler) HandleLogic(fnCode uint8, pkg protocol.Packet, startAddr, number int, val any) {
 	go func() {
 		if fn, ok := p.logics[fnCode]; ok {
-			fn(startAddr, number, val)
+			fn(pkg, startAddr, number, val)
 		}
 	}()
 }