diff --git a/Modbus_communication/Modbus_RTU_Salve/common.cpp b/Modbus_communication/Modbus_RTU_Salve/common.cpp
index a32df01..38eea15 100644
--- a/Modbus_communication/Modbus_RTU_Salve/common.cpp
+++ b/Modbus_communication/Modbus_RTU_Salve/common.cpp
@@ -328,13 +328,13 @@ BYTE Input_Parity(void)
 unsigned int Count_Read_date_number(int Function_code, unsigned int Operations_Number)
 {
 	unsigned int Read_date_number = 0;
-	if (Function_code == 0x01) //读线圈
+	if (Function_code == 0x01 || Function_code == 0x0F) //读线圈
 	{
 		Read_date_number = Operations_Number / 8;
 		if (Operations_Number % 8)
 			Read_date_number++;
 	}
-	if (Function_code == 0x03)//读寄存器
+	if (Function_code == 0x03 || Function_code == 0x10)//读寄存器
 		Read_date_number = Operations_Number * 2;
 	return Read_date_number;
 }