发布日期：2022-04-27 点击率：402 品牌：西门子_Siemens
创建新连接外部变量只能在与自动化系统连接的基础上创建。如果还没有需要的连接，必须首先创建该连接。先决条件必须安装所需要的通讯处理器和相关的硬件驱动程序。还必须安装期望的通讯驱动程序，例如“SIMATICS7ProtocolSuite”步骤
步骤
1扩展“变量管理”中通讯驱动程序的视图。
2选择期望的通道单元，例如“PROFIBUS”。
3在用于通道单元的弹出式菜单中，选择“新建驱动程序连接...”。
4在“常规”标签卡的“名称”域中，输入在项目范围内唯一的用于连接的名称。
5单击“属性”按钮，打开“连接参数”对话框。设置该连接所需的参数。有关详细信息，请参考各相应通道的帮助文档。
6通过单击“确定”，关闭所有的对话框。
组态外部变量创建变量的过程对于所有数据类型基本相似。然而，对某些数据类型进行特殊设置。(步骤5-7)。先决条件必须安装所需要的通讯处理器和硬件驱动程序。还必须安装期望的通讯驱动程序，例如“SIMATICS7ProtocolSuite”。为了使用通道单元，必须建立连接(例如“PROFIBUS”)。步骤
步骤
1从所期望的连接的弹出式菜单中选择“新建变量”。“变量属性”对话框将打开。
2在“常规”标签卡上，“名称”域中，输入在WinCC项目范围内唯一的变量名，例如“WinCCTag_01”。
3设置变量的“数据类型”，例如“浮点数64位IEEE754”，在相关域中。
4单击“选择”打开“变量属性”对话框，在AS中设置变量的地址区域。
在二进制或8位变量的情况下，如果通道不支持按位/字节访问，在“变量属性”对话框前会显示“位/字节变量”对话框。
要获得更多信息，请参考“BinWrite机制”。单击“确定”按钮，关闭“位/字节变量”或“变量属性”对话框。
5在数字变量的情况下，WinCC会在“类型转换”域中显示建议的类型转换。
按照不同需要，选择合适的的类型转换。转换以“X到Y”的次序显示，(www.dqjsw.com.cn)X是WinCC格式、Y是AS格式，例如“DoubleToDouble”。
6单击“线性标定”复选框使数字标签线性标定。输入“过程值范围”(在AS中)以及“变量数值范围”(在WinCC中)的上限和下限。
7当使用文本变量工作，将激活“长度”域。在这种情况下，以字符形式输入文本变量的长度。
8单击“确定”关闭所有对话框。
WinCC数据类型排序的类型转换当组态外部变量，必须对所有数字型数据类型执行类型转换。WinCC这方面的数据格式决定了数据类型。类型转换定义如何从WinCC格式转换到AS格式。该定义适用于双向传送。从列表中选择期望的WinCC数据类型。下表列出所支持的类型转换和数值范围。WinCC数据类型窗体顶部类型转换“无符号8位数”数值范围
ByteToUnsignedByte0...255(无转换)
ByteToUnsignedWord0...255
ByteToUnsignedDword0...255
ByteToSignedByte0...127
ByteToSignedWord0...255
ByteToSignedDword0...255
ByteToBCDByte0...99
ByteToBCDWord0...255
ByteToBCDDword0...255
ByteToAikenByte0...99
ByteToAikenWord0...255
ByteToAikenDword0...255
ByteToExcessByte0...99
ByteToExcessWord0...255
ByteToExcessDword0...255
“有符号8位数”类型转换数值范围
CharToUnsignedByte0...127
CharToUnsignedWord0...127
CharToUnsignedDword0...127
CharToSignedByte-128...+127(无转换)
CharToSignedWord-128...+127
CharToSignedDword-128...+127
CharToMSBByte-128...+127
CharToMSBWord-128...+127
CharToMSBDword-128...+127
CharToBCDByte0...99
CharToBCDWord0...127
CharToBCDDword0...127
CharToSignedBCDByte-9...+9
CharToSignedBCDWord-128...+127
CharToSignedBCDDword-128...+127
CharToExtSignedBCDByte-79...+79
CharToExtSignedBCDWord-128...+127
CharToExtSignedBCDDword-128...+127
CharToAikenByte0...99
CharToAikenWord0...127
CharToAikenDword0...127
CharToSignedAikenByte-9...+9
CharToSignedAikenWord-128...+127
CharToSignedAikenDword-128...+127
CharToExcessByte0...99
CharToExcessWord0...127
CharToExcessDword0...127
CharToSignedExcessByte-9...+9
CharToSignedExcessWord-128...+127
CharToSignedExcessDword-128...+127
“浮点数64位IEEE754”类型转换数值范围
DoubleToDouble+-1.79769313486231e+308(无转换)
DoubleToUnsignedByte0...255
DoubleToUnsignedWord0...65535
DoubleToUnsignedDword0...4294967295
DoubleToSignedByte-128...+127
DoubleToSignedWord-32768...+32767
DoubleToSignedDword-2147483647...+2147483647
DoubleToFloat+-3.402823e+38
DoubleToMSBByte-127...+127
DoubleToMSBWord-32767...+32767
DoubleToMSBDword-2147483647...+2147483647
DoubleToBCDByte0...99
DoubleToBCDWord0...9999
DoubleToBCDDword0...99999999
DoubleToSignedBCDByte-9...+9
DoubleToSignedBCDWord-999...+999
DoubleToSignedBCDDword-9999999...+9999999
DoubleToExtSignedBCDByte-79...+79
DoubleToExtSignedBCDWord-7999...+7999
DoubleToExtSignedBCDDword-79999999...+79999999
DoubleToAikenByte0...99
DoubleToAikenWord0...9999
DoubleToAikenDword0...99999999
DoubleToSignedAikenByte-9...+9
DoubleToSignedAikenWord-999...+999
DoubleToSignedAikenDword-9999999...+9999999
DoubleToExcessByte0...99
DoubleToExcessWord0...9999
DoubleToExcessDword0...99999999
DoubleToSignedExcessByte-9...+9
DoubleToSignedExcessWord-999...+999
DoubleToSignedExcessDword-9999999...+9999999
DoubleToS5Timer10...9990000
DoubleToS5Float+-1.701411e+38
“无符号32位数”类型转换数值范围
DwordToUnsignedDword0...4294967295(无转换)
DwordToUnsignedByte0...255
DwordToUnsignedWord0...65535
DwordToSignedByte0...127
DwordToSignedWord0...32767
DwordToSignedDword0...2147483647
DwordToBCDByte0...99
DwordToBCDWord0...9999
DwordToBCDDword0...99999999
DwordToAikenByte0...99
DwordToAikenWord0...9999
DwordToAikenDword0...99999999
DwordToExcessByte0...99
DwordToExcessWord0...9999
DwordToExcessDword0...99999999
DwordToSimaticTimer10...9990000
DwordToSimaticBCDTimer10...9990000
“浮点数32位IEEE754”类型转换数值范围
FloatToFloat+-3.402823e+38(无转换)
FloatToUnsignedByte0...255
FloatToUnsignedWord0...65535
FloatToUnsignedDword0...4.294967e+09
FloatToSignedByte-128...+127
FloatToSignedWord-32768...+32767
FloatToSignedDword-2.147483e+09...+2.147483e+09
FloatToDouble+-3.402823e+38
FloatToMSBByte-127...+127
FloatToMSBWord-32767...+32767
FloatToMSBDword-2.147483e+09...+2.147483e+09
FloatToBCDByte0...99
FloatToBCDWord0...9999
FloatToBCDDword0...9.999999e+07
FloatToSignedBCDByte-9...+9
FloatToSignedBCDWord-999...+999
FloatToSignedBCDDword-9999999...+9999999
FloatToExtSignedBCDByte-79...+79
FloatToExtSignedBCDWord-7999...+7999
FloatToExtSignedBCDDword-7.999999e+07...+7.999999e+07
FloatToAikenByte0...99
FloatToAikenWord0...9999
FloatToAikenDword0...9.999999e+07
FloatToSignedAikenByte-9...+9
FloatToSignedAikenWord-999...+999
FloatToSignedAikenDword-9999999...+9999999
FloatToExcessByte0...99
FloatToExcessWord0...9999
FloatToExcessDword0...9.999999e+07
FloatToSignedExcessByte-9...+9
FloatToSignedExcessWord-999...+999
FloatToSignedExcessDword-9999999...+9999999
FloatToS5Timer10...9990000
FloatToS5Float+-1.701411e+38
“有符号32位数”类型转换数值范围
LongToSignedDword-2147483647...+2147483647(无转换)
LongToUnsignedByte0...255
LongToUnsignedWord0...65535
LongToUnsignedDword0...2147483647
LongToSignedByte-128...+127
LongToSignedWord-32768...+32767
LongToMSBByte-127...+127#p#分页标题#e#
LongToMSBWord-32767...+32767
LongToMSBDword-2147483647...+2147483647
LongToBCDByte0...99
LongToBCDWord0...9999
LongToBCDDword0...99999999
LongToSignedBCDByte-9...+9
LongToSignedBCDWord-999...+999
LongToSignedBCDDword-9999999...+9999999
LongToExtSignedBCDByte-79..+79
LongToExtSignedBCDWord-7999...+7999
LongToExtSignedBCDDword-79999999...+79999999
LongToAikenByte0...99
LongToAikenWord0...9999
LongToAikenDword0...99999999
LongToSignedAikenByte-9...+9
LongToSignedAikenWord-999...+999
LongToSignedAikenDword-9999999...+9999999
LongToExcessByte0...99
LongToExcessWord0...9999
LongToExcessDword0...99999999
LongToSignedExcessByte-9...+9
LongToSignedExcessWord-999...+999
LongToSignedExcessDword-9999999...+9999999
LongToSimaticTimer10...9990000
LongToSimaticBCDTimer10...9990000
“有符号16位数”类型转换数值范围
ShortToUnsignedByte0...255
ShortToUnsignedWord0...32767
ShortToUnsignedDword0...32767
ShortToSignedByte-128...+127
ShortToSignedWord-32768...+32767(无转换)
ShortToSignedDword-32768...+32767
ShortToMSBByte-127...+127
ShortToMSBWord-32767...+32767
ShortToMSBDword-32768...+32767
ShortToBCDByte0...99
ShortToBCDWord0...9999
ShortToBCDDword0...32767
ShortToSignedBCDByte-9...+9
ShortToSignedBCDWord-999...+999
ShortToSignedBCDDword-32768...+32767
ShortToExtSignedBCDByte-79...+79
ShortToExtSignedBCDWord-7999...+7999
ShortToExtSignedBCDDword-32768...+32767
ShortToAikenByte0...99
ShortToAikenWord0...9999
ShortToAikenDword0...32767
ShortToSignedAikenByte-9...+9
ShortToSignedAikenWord-999...+999
ShortToSignedAikenDword-32768...+32767
ShortToExcessByte0...99
ShortToExcessWord0...9999
ShortToExcessDword0...32767
ShortToSignedExcessByte-9...+9
ShortToSignedExcessWord-999...+999
ShortToSignedExcessDword-32768...+32767
“无符号16位数”类型转换数值范围
WordToUnsignedWord0...65535(无转换)
WordToUnsignedByte0...255
WordToUnsignedDword0...65535
WordToSignedByte0...127
WordToSignedWord0...32767
WordToSignedDword0...65535
WordToBCDByte0...99
WordToBCDWord0...9999
WordToBCDDword0...65535
WordToAikenByte0...99
WordToAikenWord0...9999
WordToAikenDword0...65535
WordToExcessByte0...99
WordToExcessWord0...9999
WordToExcessDword0...65535
WordToSimaticCounter0...999
WordToSimaticBCDCounter0...999
按AS数据类型排序的类型转换引言在组态外部变量时，必须对所有数字型数据类型执行类型转换。WinCC这方面的数据格式决定了数据类型。类型转换定义如何从WinCC格式转换到AS格式。该定义适用于双向传送。从列表中选择期望的AS数据类型。下表列出所支持的类型转换和数值范围。AS数据类型窗体顶部所有AikenByteAikenDwordAikenWordBCDByteBCDDwordBCDWordDoubleExcessByteExcessDwordExcessWordExtSignedBCDByteExtSignedBCDDwordExtSignedBCDWordFloatMSBByteMSBDwordMSBWordS5FloatS5TimerSignedAikenByteSignedAikenDwordSignedAikenWordSignedBCDByteSignedBCDDwordSignedBCDWordSignedByteSignedDwordSignedExcessByteSignedExcessDwordSignedExcessWordSignedWordSimaticBCDCounterSimaticBCDTimerSimaticCounterSimaticTimerUnsignedByteUnsignedDwordUnsignedWord窗体底部数据类型和数值范围“无符号字节”类型转换数值范围
ByteToUnsignedByte0...255(无转换)
CharToUnsignedByte0...127
DoubleToUnsignedByte0...255
DwordToUnsignedByte0...255
FloatToUnsignedByte0...255
LongToUnsignedByte0...255
ShortToUnsignedByte0...255
WordToUnsignedByte0...255
“无符号字”类型转换数值范围
ByteToUnsignedWord0...255
CharToUnsignedWord0...127
DoubleToUnsignedWord0...65535
DwordToUnsignedWord0...65535
FloatToUnsignedWord0...65535
LongToUnsignedWord0...65535
ShortToUnsignedWord0...32767
WordToUnsignedWord0...65535(无转换)
“无符号双字”类型转换数值范围
ByteToUnsignedDword0...255
CharToUnsignedDword0...127
DoubleToUnsignedDword0...4294967295
DwordToUnsignedDword0...4294967295(无转换)
FloatToUnsignedDword0...4.294967e+09
LongToUnsignedDword0...2147483647
ShortToUnsignedDword0...32767
WordToUnsignedDword0...65535
“有符号字节”类型转换数值范围
ByteToSignedByte0...127
CharToSignedByte-128...+127(无转换)
DoubleToSignedByte-128...+127
DwordToSignedByte0...127
FloatToSignedByte-128...+127
LongToSignedByte-128...+127
ShortToSignedByte-128...+127
WordToSignedByte0...127
“有符号字”类型转换数值范围
ByteToSignedWord0...255
CharToSignedWord-128...+127
DoubleToSignedWord-32768...+32767
DwordToSignedWord0...32767
FloatToSignedWord-32768...+32767
LongToSignedWord-32768...+32767
ShortToSignedWord-32768...+32767(无转换)
WordToSignedWord0...32767
“有符号双字”类型转换数值范围
ByteToSignedDword0...255
CharToSignedDword-128...+127
DoubleToSignedDword-2147483647...+2147483647
DwordToSignedDword0...2147483647
FloatToSignedDword-2.147483e+09...+2.147483e+09
LongToSignedDword-2147483647...+2147483647(无转换)
ShortToSignedDword-32768...+32767
WordToSignedDword0...65535
“MSBByte”类型转换数值范围
CharToMSBByte-128...+127
DoubleToMSBByte-127...+127
FloatToMSBByte-127...+127
LongToMSBByte-127...+127
ShortToMSBByte-127...+127
“MSBWord”类型转换数值范围
CharToMSBWord-128...+127
DoubleToMSBWord-32767...+32767
FloatToMSBWord-32767...+32767
LongToMSBWord-32767...+32767
ShortToMSBWord-32767...+32767
“MSBDWord”类型转换数值范围
CharToMSBDword-128...+127
DoubleToMSBDword-2147483647...+2147483647
FloatToMSBDword-2.147483e+09...+2.147483e+09
LongToMSBDword-2147483647...+2147483647
ShortToMSBDword-32768...+32767
“BCDByte”类型转换数值范围
ByteToBCDByte0...99
CharToBCDByte0...99
DoubleToBCDByte0...99
DwordToBCDByte0...99
FloatToBCDByte0...99
LongToBCDByte0...99
ShortToBCDByte0...99
WordToBCDByte0...99
“BCDWord”类型转换数值范围
ByteToBCDWord0...255
CharToBCDWord0...127
DoubleToBCDWord0...9999
DwordToBCDWord0...9999
FloatToBCDWord0...9999
LongToBCDWord0...9999
ShortToBCDWord0...9999
WordToBCDWord0...9999
“BCDDWord”类型转换数值范围
ByteToBCDDword0...255
CharToBCDDword0...127
DoubleToBCDDword0...99999999
DwordToBCDDword0...99999999
FloatToBCDDword0...9.999999e+07
LongToBCDDword0...99999999
ShortToBCDDword0...32767
WordToBCDDword0...65535
“SignedBCDByte”类型转换数值范围
CharToSignedBCDByte-9...+9
DoubleToSignedBCDByte-9...+9
FloatToSignedBCDByte-9...+9
LongToSignedBCDByte-9...+9
ShortToSignedBCDByte-9...+9
“SignedBCDWord”类型转换数值范围
CharToSignedBCDWord-128...+127
DoubleToSignedBCDWord-999...+999
FloatToSignedBCDWord-999...+999
LongToSignedBCDWord-999...+999
ShortToSignedBCDWord-999...+999
“SignedBCDDWord”类型转换数值范围
CharToSignedBCDDword-128...+127
DoubleToSignedBCDDword-9999999...+9999999
FloatToSignedBCDDword-9999999...+9999999
LongToSignedBCDDword-9999999...+9999999
ShortToSignedBCDDword-32768...+32767#p#分页标题#e#
“ExtSignedBCDByte”类型转换数值范围
CharToExtSignedBCDByte-79...+79
DoubleToExtSignedBCDByte-79...+79
FloatToExtSignedBCDByte-79...+79
LongToExtSignedBCDByte-79..+79
ShortToExtSignedBCDByte-79...+79
“ExtSignedBCDWord”类型转换数值范围
CharToExtSignedBCDWord-128...+127
DoubleToExtSignedBCDWord-7999...+7999
FloatToExtSignedBCDWord-7999...+7999
LongToExtSignedBCDWord-7999...+7999
ShortToExtSignedBCDWord-7999...+7999
“ExtSignedBCDDWord”类型转换数值范围
CharToExtSignedBCDDword-128...+127
DoubleToExtSignedBCDDword-79999999...+79999999
FloatToExtSignedBCDDword-7.999999e+07...+7.999999e+07
LongToExtSignedBCDDword-79999999...+79999999
ShortToExtSignedBCDDword-32768...+32767
“AikenByte”类型转换数值范围
ByteToAikenByte0...99
CharToAikenByte0...99
DoubleToAikenByte0...99
DwordToAikenByte0...99
FloatToAikenByte0...99
LongToAikenByte0...99
ShortToAikenByte0...99
WordToAikenByte0...99
AikenWord"数值范围
ByteToAikenWord0...255
CharToAikenWord0...127
DoubleToAikenWord0...9999
DwordToAikenWord0...9999
FloatToAikenWord0...9999
LongToAikenWord0...9999
ShortToAikenWord0...9999
WordToAikenWord0...9999
“AikenDWord”类型转换数值范围
ByteToAikenDword0...255
CharToAikenDword0...127
DoubleToAikenDword0...99999999
DwordToAikenDword0...99999999
FloatToAikenDword0...9.999999e+07
LongToAikenDword0...99999999
ShortToAikenDword0...32767
WordToAikenDword0...65535
“SignedAikenByte”类型转换数值范围
CharToSignedAikenByte-9...+9
DoubleToSignedAikenByte-9...+9
FloatToSignedAikenByte-9...+9
LongToSignedAikenByte-9...+9
ShortToSignedAikenByte-9...+9
“SignedAikenWord”类型转换数值范围
CharToSignedAikenWord-128...+127
DoubleToSignedAikenWord-999...+999
FloatToSignedAikenWord-999...+999
LongToSignedAikenWord-999...+999
ShortToSignedAikenWord-999...+999
“SignedAikenDWord”类型转换数值范围
CharToSignedAikenDword-128...+127
DoubleToSignedAikenDword-9999999...+9999999
FloatToSignedAikenDword-9999999...+9999999
LongToSignedAikenDword-9999999...+9999999
ShortToSignedAikenDword-32768...+32767
“ExcessByte”类型转换数值范围
ByteToExcessByte0...99
CharToExcessByte0...99
DoubleToExcessByte0...99
DwordToExcessByte0...99
FloatToExcessByte0...99
LongToExcessByte0...99
ShortToExcessByte0...99
WordToExcessByte0...99
“ExcessWord”类型转换数值范围
ByteToExcessWord0...255
CharToExcessWord0...127
DoubleToExcessWord0...9999
DwordToExcessWord0...9999
FloatToExcessWord0...9999
LongToExcessWord0...9999
ShortToExcessWord0...9999
WordToExcessWord0...9999
“ExcessDWord”类型转换数值范围
ByteToExcessDword0...255
CharToExcessDword0...127
DoubleToExcessDword0...99999999
DwordToExcessDword0...99999999
FloatToExcessDword0...9.999999e+07
LongToExcessDword0...99999999
ShortToExcessDword0...32767
WordToExcessDword0...65535
“SignedExcessByte”类型转换数值范围
CharToSignedExcessByte-9...+9
DoubleToSignedExcessByte-9...+9
FloatToSignedExcessByte-9...+9
LongToSignedExcessByte-9...+9
ShortToSignedExcessByte-9...+9
“SignedExcessWord”类型转换数值范围
CharToSignedExcessWord-128...+127
DoubleToSignedExcessWord-999...+999
FloatToSignedExcessWord-999...+999
LongToSignedExcessWord-999...+999
ShortToSignedExcessWord-999...+999
“SignedExcessDWord”类型转换数值范围
CharToSignedExcessDword-128...+127
DoubleToSignedExcessDword-9999999...+9999999
FloatToSignedExcessDword-9999999...+9999999
LongToSignedExcessDword-9999999...+9999999
ShortToSignedExcessDword-32768...+32767
“SimaticCounter”类型转换数值范围
WordToSimaticCounter0...999
“SimaticBCDCounter”类型转换数值范围
WordToSimaticBCDCounter0...999
“SimaticTimer”类型转换数值范围
DwordToSimaticTimer10...9990000
LongToSimaticTimer10...9990000
“S5Float”类型转换数值范围
DoubleToS5Float+-1.701411e+38
FloatToS5Float+-1.701411e+38
“S5Timer”类型转换数值范围
DoubleToS5Timer10...9990000
FloatToS5Timer10...9990000
“SimaticBCDTimer”类型转换数值范围
DwordToSimaticBCDTimer10...9990000
LongToSimaticBCDTimer10...9990000
“Double”类型转换数值范围
DoubleToDouble+-1.79769313486231e+308(无转换)
FloatToDouble+-3.402823e+38
“Float”类型转换数值范围
DoubleToFloat+-3.402823e+38
FloatToFloat+-3.402823e+38(无转换)
BinWrite机制引言在WinCC中，一些通讯驱动程序及其通道单元不支持直接按位或字节访问(位/字节访问)已连接的自动化系统中的地址区域。于是，他们使用BinWrite机制。位/字节访问用位/字节访问通讯驱动程序的通道单元可直接读写期望的位或字节。在以下说明中，位x的数值通过直接位/字节访问设置为1。BinWrite机制下列通讯驱动程序不支持位/字节访问，使用BinWrite机制代替通道单元：ModbusSerialSIMATICS5ETHERNETLAYER4SIMATICS5ProgrammersPortAS511SIMATICS5Serial3964RSIMATICTIEthernetLayer4SIMATICTISerial为了写位或字节，通道单元使用BinWrite机制首先读取整个数据字。已编址的位或字节在已读取的字中改变。然后，整个字(！)而不只是修改过的位或字节会被写回内存。在以下说明中，位x的数值通过使用BinWrite机制设置为1。注意如果AS中的字在WinCC使用BinWrite机制读取过后，进行了修改(参见说明中的“问题案例”)，则当WinCC把字写回内存时，会覆盖由AS改变的数据。用BinWrite组态变量如果想为不支持位/字节访问的通讯驱动程序通道单元组态“二进制变量”，必须使用对话框激活并且组态BinWrite机制，否则不可用。先决条件必须安装所需要的通讯处理器和硬件驱动程序。必须安装不支持位/字节访问的期望的通讯驱动程序，例如“SIMATICS5EthernetLayer4”。必须使用其中一个通道单元建立连接。步骤步骤
1为需要的连接打开弹出式菜单，创建新变量然后选择“新建变量...”。“创建新变量”对话框将打开。
2在“常规”标签卡上，“名称”域中，输入在项目范围内唯一的变量名称。为数据类型选择“二进制变量”、“无符号8位数”或“有符号8位数”。
3单击“选择”按钮，打开“位/字节变量”对话框。(在用位/字节访问通道的情况下，该按钮用来访问为AS中的地址区域所做的设置。)
4单击“访问位”或“访问字节”复选框并且保留设置。在对话框中查到的内容与步骤2中所选的数据类型有关。
5单击“确定”关闭对话框。
注意：如果忘记为新的“二进制变量”或8位变量激活BinWrite机制，该对话框仍会打开。如果企图单击“确定”立刻关闭“创建新变量”对话框，则会显示“地址参数无效”的错误消息。通过“是”进行确认。这将打开“位/字节变量”对话框，在此用户可进行所需要的设置。
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