Small changes

- Corrected buffer declaration on OPLC Compiler
  - Changed OPLC Compiler folder name
  - Corrected FC 04 on Modbus

OPLC_Compiler_source/ansic.cpp

@@ -484,14 +484,14 @@ void CompileAnsiC(char *dest)
 "#endif\n"
 "\n"
 "/* Below is the definition of the internal buffers for I/O and memory.*/\n"
-"SWORD AnalogInputBuffer0[100];\n"
-"SWORD AnalogOutputBuffer0[100];\n"
-"BOOL DiscreteInputBuffer0[100];\n"
-"BOOL CoilsBuffer0[100];\n"
+"SWORD AnalogInputBuffer0[BUFFER_SIZE];\n"
+"SWORD AnalogOutputBuffer0[BUFFER_SIZE];\n"
+"BOOL DiscreteInputBuffer0[BUFFER_SIZE];\n"
+"BOOL CoilsBuffer0[BUFFER_SIZE];\n"
 "\n"
-"SWORD MemBuffer0[100];\n"
-"SWORD MemBuffer1[100];\n"
-"SWORD MemBuffer2[100];\n"
+"SWORD MemBuffer0[BUFFER_SIZE];\n"
+"SWORD MemBuffer1[BUFFER_SIZE];\n"
+"SWORD MemBuffer2[BUFFER_SIZE];\n"
 "\n"
 "/* U_xxx symbols correspond to user-defined names. There is such a symbol\n"
 "   for every internal relay, variable, timer, and so on in the ladder\n"

core/modbus.cpp

@@ -427,7 +427,7 @@ int Modbus::Run(unsigned char *reply)
 	}
 
 	//****************** Read Input Registers ******************
-	else if(FC == MB_FC_READ_HOLDING_REGISTERS)
+	else if(FC == MB_FC_READ_INPUT_REGISTERS)
 	{
 		ReadInputRegisters();
 	}