diff --git a/internal/driver/config.go b/internal/driver/config.go
index bdced1e4..04ab0bb3 100644
--- a/internal/driver/config.go
+++ b/internal/driver/config.go
@@ -11,6 +11,8 @@ import (
 	"strconv"
 
 	"github.com/edgexfoundry/go-mod-core-contracts/v3/models"
+
+	"github.com/spf13/cast"
 )
 
 // ConnectionInfo is device connection info
@@ -60,9 +62,9 @@ func parseIntValue(properties map[string]any, key string) (int, error) {
 		return 0, fmt.Errorf("protocol config '%s' not exist", key)
 	}
 
-	res, ok := value.(int)
-	if !ok {
-		return 0, fmt.Errorf("cannot transfrom protocol config %s value %v to int", key, value)
+	res, err := cast.ToIntE(value)
+	if err != nil {
+		return 0, fmt.Errorf("cannot transfrom protocol config %s value %v to int, %v", key, value, err)
 	}
 
 	return res, nil
diff --git a/internal/driver/config_test.go b/internal/driver/config_test.go
index 9121aa17..9c61fe69 100644
--- a/internal/driver/config_test.go
+++ b/internal/driver/config_test.go
@@ -20,16 +20,18 @@ func TestCreateRTUConnectionInfo_unitID255(t *testing.T) {
 	stopBits := 1
 	parity := "N"
 	unitID := uint8(255)
+	timeout := 5
+	idleTimeout := 5
 	protocols := map[string]models.ProtocolProperties{
 		ProtocolRTU: {
 			Address:     address,
-			UnitID:      255,
-			BaudRate:    19200,
-			DataBits:    8,
-			StopBits:    1,
-			Parity:      "N",
-			Timeout:     5,
-			IdleTimeout: 5,
+			UnitID:      unitID,
+			BaudRate:    float64(baudRate),
+			DataBits:    float64(dataBits),
+			StopBits:    float64(stopBits),
+			Parity:      parity,
+			Timeout:     float64(timeout),
+			IdleTimeout: float64(idleTimeout),
 		},
 	}
 
@@ -40,7 +42,7 @@ func TestCreateRTUConnectionInfo_unitID255(t *testing.T) {
 	}
 	if connectionInfo.Protocol != ProtocolRTU || connectionInfo.Address != address || connectionInfo.UnitID != unitID ||
 		connectionInfo.BaudRate != baudRate || connectionInfo.DataBits != dataBits || connectionInfo.StopBits != stopBits ||
-		connectionInfo.Parity != parity {
+		connectionInfo.Parity != parity || connectionInfo.Timeout != timeout || connectionInfo.IdleTimeout != idleTimeout {
 		t.Fatalf("Unexpect test result. %v should match to %v ", connectionInfo, protocols)
 	}
 }
@@ -52,16 +54,18 @@ func TestCreateConnectionInfo_unitID0(t *testing.T) {
 	stopBits := 1
 	parity := "N"
 	unitID := uint8(0)
+	timeout := 5
+	idleTimeout := 5
 	protocols := map[string]models.ProtocolProperties{
 		ProtocolRTU: {
 			Address:     address,
-			UnitID:      0,
-			BaudRate:    19200,
-			DataBits:    8,
-			StopBits:    1,
-			Parity:      "N",
-			Timeout:     5,
-			IdleTimeout: 5,
+			UnitID:      unitID,
+			BaudRate:    float64(baudRate),
+			DataBits:    float64(dataBits),
+			StopBits:    float64(stopBits),
+			Parity:      parity,
+			Timeout:     float64(timeout),
+			IdleTimeout: float64(idleTimeout),
 		},
 	}
 
@@ -72,7 +76,7 @@ func TestCreateConnectionInfo_unitID0(t *testing.T) {
 	}
 	if connectionInfo.Protocol != ProtocolRTU || connectionInfo.Address != address || connectionInfo.UnitID != unitID ||
 		connectionInfo.BaudRate != baudRate || connectionInfo.DataBits != dataBits || connectionInfo.StopBits != stopBits ||
-		connectionInfo.Parity != parity {
+		connectionInfo.Parity != parity || connectionInfo.Timeout != timeout || connectionInfo.IdleTimeout != idleTimeout {
 		t.Fatalf("Unexpect test result. %v should match to %v ", connectionInfo, protocols)
 	}
 }