diff --git a/SCADA/Program/DataService/PLCGroup.cs b/SCADA/Program/DataService/PLCGroup.cs
index cfab38b..36a6ea8 100644
--- a/SCADA/Program/DataService/PLCGroup.cs
+++ b/SCADA/Program/DataService/PLCGroup.cs
@@ -938,6 +938,7 @@ namespace DataService
                 byte[] rcvBytes = _plcReader.ReadBytes(area.Start, (ushort)area.Len);//从PLC读取数据  
                 if (rcvBytes == null)
                 {
+                    k += (area.Len + 1) / 2;
                     continue;
                 }
                 else
diff --git a/SCADA/dll/ModbusDriver.dll b/SCADA/dll/ModbusDriver.dll
index d5eeeb5..025e06e 100644
Binary files a/SCADA/dll/ModbusDriver.dll and b/SCADA/dll/ModbusDriver.dll differ