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博客名称:liuguoxing 日志总数:79 评论数量:123 访问次数:548747 建立时间::2006年04月23日
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博客名称:liuguoxing
 

记着长者的诚挚教诲,踏上了那条小路,寻找他的城市之梦。他经历的痛苦与艰难无与伦比,但是,每一次挫折,每一回失败都没有打倒他。当他面临绝境时,总是对自己说“走错的路也是路”,于是他挺过来了。

 

凭他那杰出的韧劲与毅力,在10年后的一天,他们终于见到了朝思暮想的城市。不过历史好像停留在那不动了。香烟吻到了尽头,剩下一堆灰白的记忆。烟火会用它那迷人的光彩,掩盖即将远去的无奈。。。。。。而火柴更冲动,很多时候只是一时的头脑发热,却葬送了自己的一生。。。。。。!设计设计只是自己灵感的挥洒。我会设计但是我不能设计出自己想要的人生。我现在的生活为什么会像鞭炮一样,轰动力很大,可是一阵巨响过后,只剩下一团虚无的烟雾?

 

过去的得与失已经不会再重现,那就给过去一个完美的句号吧。阳光的列车又向着美好的明天出发咯,再见了伤痛的记忆。。。。。。!

 


欧姆龙PLC 数据类型
liuguoxing 发表于:2011/9/28 11:35:50
标签(TAG):欧姆龙 PLC 数据类型

欧姆龙PLC  数据类型

BOOL  Address of a binary bit - a logical Boolean on or off state. This type is typically used for contacts or coils.

CHANNEL  This is a special data type, for backward compatibility. It is an address (non-bit) to data of any type (unsigned or signed, one or more words), so can be used in place of any of the above data-types except NUMBER and BOOL. The data type is weak, and so checking is limited (e.g. CX-Programmer cannot check if the address is being used for BCD or binary values).

DINT  Address of a signed, double binary word.

INT  Address of a signed, single binary word.

LINT  Address of a signed, quad binary word.

NUMBER  A literal numeric value. Not an address. The value can be signed, or floating point.

NUMBERs are used for any literal value or for timer/counter identifiers (in this case, only unsigned integer values are allowed). Floating point values are only suitable within IEEE REAL type operands.

Note: when used as BCD number operands, the value is treated as a hexadecimal value (e.g. using a NUMBER E234Eis equivalent to typing E1234Eas the operand, so that the decimal interpretation is made of the value). The value of a NUMBER data type is assumed to be decimal, unless it is prefixed with '#' for a hexadecimal value.

REAL  Address of a double word floating point value (IEEE format - use the UDINT

type for the BCD, FDIV format).

LREAL  Address of a long word floating point value (IEEE format - use the

ULINT type for the BCD format).

UDINT  Address of an unsigned, double binary word.

UDINT_BCD  Address of an unsigned, double BCD word.

UINT  Address of an unsigned, single binary word.

UINT_BCD  Address of an unsigned, single BCD word

ULINT  Address of an unsigned, quad binary word.

ULINT_BCD  Address of an unsigned, quad BCD word.

WORD  Address of a bit string of 16 bits.

DWORD  Address of a bit string of 32 bits.

LWORD  Address of a bit string of 64 bits.


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