diff --git a/DeviceHub/device/DeviceBase.cpp b/DeviceHub/device/DeviceBase.cpp
index 65c4dce..3e697b4 100644
--- a/DeviceHub/device/DeviceBase.cpp
+++ b/DeviceHub/device/DeviceBase.cpp
@@ -80,6 +80,10 @@
 void DeviceBase::initSerialPort()
 {
     int master = SettingConfig::getInstance().MASTER;
+    if (this->comName.isEmpty()) {
+        return ;
+    }
+
     QStringList comNameList = this->comName.split(",");
     if (comNameList.isEmpty() == true)
     {

diff --git a/DeviceHub/device/DeviceBase.cpp b/DeviceHub/device/DeviceBase.cpp
index 65c4dce..3e697b4 100644
--- a/DeviceHub/device/DeviceBase.cpp
+++ b/DeviceHub/device/DeviceBase.cpp
@@ -80,6 +80,10 @@
 void DeviceBase::initSerialPort()
 {
     int master = SettingConfig::getInstance().MASTER;
+    if (this->comName.isEmpty()) {
+        return ;
+    }
+
     QStringList comNameList = this->comName.split(",");
     if (comNameList.isEmpty() == true)
     {
diff --git a/DeviceHub/protocol/TimeReplicatorProtocolBM.cpp b/DeviceHub/protocol/TimeReplicatorProtocolBM.cpp
index 598bb3f..fb44606 100644
--- a/DeviceHub/protocol/TimeReplicatorProtocolBM.cpp
+++ b/DeviceHub/protocol/TimeReplicatorProtocolBM.cpp
@@ -21,19 +21,25 @@
         QString outStr = "";
 
         ((TimeReplicatorStatusDto *) frameData)->devStatus = content.at(0);
-        if (length < 0x30)
-        {
+        if (length == 0x2B) {
+            // 2*8
             count = 2;
             inputByte = content.mid(2, 1).toInt();
             outStr = content.mid(3, 8 * count);
-        } else
-        {
+        } else if (length == 0x2C) {
+            // 4*4
+            count = 4;
+            inputByte = content.mid(2, 2).toInt();
+            outStr = content.mid(4, 4 * count);
+        } else {
+            // 4*8
             count = 4;
             inputByte = content.mid(2, 2).toInt();
             outStr = content.mid(4, 8 * count);
         }
 
         ((TimeReplicatorStatusDto *) frameData)->inCount = count;
+        int outCount = outStr.length() / count;
         for (int i = 0; i < count; i++)
         {
             qint8 in = inputByte % 2;
@@ -41,9 +47,9 @@
             inputByte = inputByte / 2;
 
             QString output = "";
-            for (int j = 0; j < 8; j++)
+            for (int j = 0; j < outCount; j++)
             {
-                output += outStr.at(i * 8 + j);
+                output += outStr.at(i * outCount + j);
                 output += ",";
             }
             ((TimeReplicatorStatusDto *) frameData)->outValid.append(output.mid(0, output.size() - 1));