diff --git a/AuroraDevices/AuroraIO/Vendor/AJINEXTEK/AjinIO.cs b/AuroraDevices/AuroraIO/Vendor/AJINEXTEK/AjinIO.cs
index 824ab82..37e317a 100644
--- a/AuroraDevices/AuroraIO/Vendor/AJINEXTEK/AjinIO.cs
+++ b/AuroraDevices/AuroraIO/Vendor/AJINEXTEK/AjinIO.cs
@@ -505,7 +505,7 @@ namespace AuroraIO.AJINEXTEK
             int err = (int)CAXD.AxdiReadInport(index, ref data);
             if (err != (int)AXT_FUNC_RESULT.AXT_RT_SUCCESS)
             {
-                throw new Exception(string.Format("ERR_IO_FAIL_TO_GET_BIT;ERROR CODE:{0}", err));
+                return false;
             }
             return Convert.ToBoolean(data);
         }
diff --git a/Machines/ILSOS_CCW_H52A/Device/PLC/PLCController.Logic.cs b/Machines/ILSOS_CCW_H52A/Device/PLC/PLCController.Logic.cs
index 0073600..a8181ab 100644
--- a/Machines/ILSOS_CCW_H52A/Device/PLC/PLCController.Logic.cs
+++ b/Machines/ILSOS_CCW_H52A/Device/PLC/PLCController.Logic.cs
@@ -1,4 +1,6 @@
-using Hermes;
+using Aurora.Util.HislogPlus;
+using AuroraPLC;
+using Hermes;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -10,6 +12,28 @@ namespace ILSOS_CCW_H52A.Device
 {
     partial class PLCControllerCCWH52A
     {
+        public (int err, bool data) ReadBit(eBitInput inputAddr, ePLCDevice device = ePLCDevice.B, bool isInput = true) => base.ReadBit((int)inputAddr, device, isInput);
+        public int WriteBit(eBitOutput outputAddr, bool onOff, ePLCDevice device = ePLCDevice.B, bool isOutput = true) => base.WriteBit((int)outputAddr, onOff, device, isOutput);
+
+        public (int err, short data) ReadWord(eWordInput inputAddr, ePLCDevice device = ePLCDevice.W, bool isInput = true) => base.ReadWord((int)inputAddr, device, isInput);
+        public int WriteWord(eWordOutput outputAddr, short shData, ePLCDevice device = ePLCDevice.W, bool isOutput = true) => base.WriteWord((int)outputAddr, shData, device, isOutput);
+
+        public (int err, int data) ReadDWord(eWordInput inputAddr, ePLCDevice device = ePLCDevice.W, bool isInput = true) => base.ReadDWord((int)inputAddr, device, isInput);
+        public int WriteDWord(eWordOutput outputAddr, int iVal, ePLCDevice device = ePLCDevice.W, bool isOutput = true) => base.WriteDWord((int)outputAddr, iVal, device, isOutput);
+
+        public (int err, short[] datas) ReadWords(eWordInput startAddress, eWordInput endAddress, ePLCDevice device = ePLCDevice.W, bool isInput = true) => base.ReadWordBlock((int)startAddress, endAddress - startAddress + 1, device, isInput);
+        public int WriteWords(eWordOutput startAddress, eWordOutput endAddress, short[] data, ePLCDevice device = ePLCDevice.W, bool isOutput = true) => base.WriteWordBlock((int)startAddress, endAddress - startAddress, data, device, isOutput);
+
+        public string ReadASCII(eWordInput start, eWordInput end)
+        {
+            StringBuilder sb = new StringBuilder();
+            var words = ReadWords(start, end);
+            foreach (var word in words.datas)
+                sb.Append(Conv_ReadData(PLCBase.eDataType.Type_Ascii, word, 0, false, false));
+
+            return sb.ToString();
+        }
+
         public override void MappingPLCAddr()
         {
             PLC_AUTO_REQAddr = (int)eBitInput.PLC_AUTO_REQ;
@@ -92,5 +116,17 @@ namespace ILSOS_CCW_H52A.Device
             else
                 return 1000;
         }
+
+        public int ToggleBit(eBitInput readBit, eBitOutput writeBit)
+        {
+            int ret = 0;
+            if (ReadBit(readBit).data)
+                ret = WriteBit(writeBit, false);
+            else
+                ret = WriteBit(writeBit, true);
+
+            Log.I($"{Enum.GetName(typeof(eBitOutput), writeBit)} -> {!ReadBit(readBit).data}");
+            return ret;
+        }
     }
 }
diff --git a/WeldingComponents/WeldingCommon/Devices/PLC/PLCController.Config.cs b/WeldingComponents/WeldingCommon/Devices/PLC/PLCController.Config.cs
index 95b73a6..c53c675 100644
--- a/WeldingComponents/WeldingCommon/Devices/PLC/PLCController.Config.cs
+++ b/WeldingComponents/WeldingCommon/Devices/PLC/PLCController.Config.cs
@@ -20,7 +20,7 @@ namespace WeldingCommon.Devices
     public abstract partial class PLCController : PLCBase
     {
         // Log 사용 방법
-        static Logger Log = new Logger("PLCController");
+        protected static Logger Log = new Logger("PLCController");
 
         //static Logger EventLog = new Logger(eMsg_TYPE.PLC.ToString(), "Event");