GB/T 17645.20-2002 工业自动化系统与集成 零件库 第20部分：逻辑资源：表达式的逻辑模型

ICS25.040.40

iv18

中华人民共和国国家标准

GB/T17645.20-2002/ISO13584-20:1998

工业自动化系统与集成

零件库

第20部分:逻辑资源:表达式的逻辑模型

Industrialautomationsystemsandintegration

-PartsLibrary

-Part20:Logicalresource:Logicalmodelofexpressions

(LSO13584-20:1998}IIDT)

2002一05一08发布2002一10一01实施

中华人民共和国

发布

国家质量监督检验检疫总局

GB/T17645.20-2002/ISO13584-20:1998

目次

前言····································。···························。··············。·······················。。·········……v

ISO前言····。··············，·······。。··············，·····················，······················，···················……VII

引言················。·································································································……IX

1范围·····················。·。·························。·······································。·····················……1

2规范性引用文件·····················································································.······……1

3术语和定义····························································································。·······……1

3.1从ISO10303-11中引用的术语和定义·。··········，···········。·····························…·…。.·……1

3.2从GB/T16656.44中引用的术语和定义·····。·······················。·································……2

3.3其他的术语和定义·······································。·········································……。.……2

4缩略语········································。·······················。····························，··············……4

5基本概念和假设···················。························。···················。················。··············……4

5.1静态和动态数据····················································································。········……4

5.2表达式语法··········。。·····················································。·································……4

5.3表达式语义·························。··············，··························································……4

5.3.1表达式语义.·4

5.3.2交换阶段和求值阶段···················，·······。································..·.········.·...·..·..·……4

5.4表达式建模中的抽象等级·······，·······。···············，·······。······························.·..·.··.··……5

5.4.1ISO13584通用表达式模式的专门化···························。···································……5

5.4.2ISO13584表达式模式的专门化·············。························。················。·············……5

5.5变量的建立··。································································································……5

5.5.1符合语法的表达································。················。································.·..····……5

5.5.2变量值域·······································。·················。························。················……6

5.5.3变量语义··········································································。·············、··········……6

5.6SQL语言可映射性··························································...·..···············..·...……6

6ISO13584通用表达式模式···············，······················································.······……6

6.1概述············································································，·······························……6

6.2ISO工3584通用表达式模式实体定义··································。·······························……6

6.2.I通用表达式·······。。··························。·········。··················，···········。···················……6

6.2.2简单通用表达式·························································.·...·.·······...··..··……7

6.2.3通用文字·························。··········································。。·····························……7

6.2.4通用变量··························，········。···········，········。································.··········一·7

6.2.5变量语义·························。········，·······························································……8

6.2.6环境.·8

6.2.7一元通用表达式···························································································一·9

6.2.8二元通用表达式···············。·······························································.··.……9

6.2.9多元通用表达式·············。···················。···················。························.·……。·.……9

6.3ISO13584通用表达式模式函数的定义·······························································……9

GB/T17645.20-2002/ISO13584-20:1998

Q

6.3.1判断非循环函数····················································································……”·’二︺

11

6.3.2已使用的变量函数·······，···············································································……1上

7ISO13584表达式模式················································……二‘“‘······……二‘二‘””’’‘·‘“’“’1弓

7.1概述············································································································……19

1伪

7.2ISO13584表达式模式的所有实体定义················································……’·‘““·‘“““1。

1六

表达式j

:.:.:.1，凸。

1变量

1。

定义的函数·········……a

SQI_可映射的定义函数1，q月

7.3ISO13584表达式模式:数值表达式的实体定义14月

.，月

7.3.1数值表达式································································································……1呀

1月

7.3.2简单数值表达式··，·······················································································……吸

，口

7.3.3数值型文字····。······。·······。············································································……esJ

，口

7.3.4整型数文字································································································……1d

.，l﹄

7.3.5实型数文字················································································。···············……胜“

7.3.6数值变量···································································································……15

，‘

.

7.3.7整型数值变量·····························································································……1u

，

7.3.8实型数值变量·····························································································……上﹃卜

1‘

7.3.9一元数值表达式.·划

1，

.

7.3.10二元数值表达式···········································。···········································……

，门

7.3n多元数值表达式·······················································································。··…es了

l向

7.3.12长度函数.·厂

.l。

7.3.13值函数···································································································。。·…1.

1。

7.3.14整数值函数··············。··············································································……‘O

.1S

7.3.15数值定义的函数·······················································································……1

1C︺

7.3.16加法表达式··························································································。··……︺

1Q

7.3.17减法表达式·····························································································……︺

.，0

7.3.18乘法表达式·····························································································……几“

l。

7.3.19整除表达式·····························································································……J

q门

7.3.2。求模数表达式.·曰

Q0

7.3.21除法表达式·····························································································……曰

7.3.22幂表达式································································································……八0

n1

7.3.23一元函数调用··························································································……乙

91

7.3.24二元函数调用··························································································……曰

n，

7.3.25多元函数调用··························································································……习es

今o

7.3.26求绝对值函数··························································································……自乙

nq

7.3.27负函数····························································································。······……乙

Qn

7.3.28正弦函数································································································……一乙

，n

7.3.29余弦函数································································································……曰

勺。

7.3.30正切函数································································································……d

7.3.31反正弦函数·，···························································································……n︸八。

q八

7.3.32反余弦函数·····························································································……户j

几，

7.3.33e的幂函数八

cB/T17645.20-2002/iso13584-20:1998

7.3.34自然对数函数··························································································……24

7.3.35以2为底的对数函数···············································，······························……“‘24

7.3.36常用对数函数······。···················································································……24

7.3.37平方根函数.·················································……25

7.3.38反正切函数·················································。···········································……25

7.3.39求最大值函数···········································。······，····························。·········……25

7.3.4。求最小值函数······························。·········。·················································……25

7.3.41整数定义的函数·························································································，…26

7.3.42实数定义的函数········。···············································。·。。·······。···················……26

7.4布尔表达式················。···························································。······················……26

7.4.1简单布尔表达式··························································································……27

7.4.2布尔文字·········································。············。。·····················。·····················……27

7.4.3布尔变量······································。····························································……27

7.4.4一元布尔表达式··············、·······················。··········································。········……27

7.4.5非表达式························································································。········……28

7.4.6奇函数···························，.·······························································。········一·28

7.4.7二元布尔表达式··················································。······································……28

7.4.8多元布尔表达式········································。·················································……29

7.4.9逻辑异或表达式········。····································。··················。·························……29

7.4.10等于表达式·················，···············································‘···························……29

7.4.11逻辑与表达式··。····································。···················································一·30

7.4.12逻辑或表达式.··········。·········。··································……30

7.4.13比较表达式······················································。··········，···························……30

7.4.14比较等于·················································...············································……31

7.4.15比较大于·······························。···············································。·····，··········……31

7.4.16比较大于等于···········································。。······，······································……31

7.4.17比较小于··························································································，·····……32

7.4.18比较小于等于······························································，····························。·…32

7.4.19比较不等于·············································。·············································。。……32

7.4.20匹配表达式····························，······························。································。……33

7.4.21区间表达式····。································，·················。··········。·········。···············……33

7.4.22布尔定义的函数···············································。··········。····························……34

7.5字符串表达式.··，········，·········，，·····，······1，·，··，········，，，········，】，……35

7.5.1简单字符串表达式·············。··········。·········。。······································……·‘···……‘35

7.5.2字符串文字.·35

7.5.3字符串变量.·35

7.5.4索引表达式································································································……36

7.5.5子字符串表达式··························································································……36

7.5.6串联表达式·····················································。··········································……37

7.5.7格式化函数···············································································、················……38

7.5.8字符串定义的函数·······································。··········。························……·‘····……38

7.6确定表达式特性的函数·············。··········。·····，·····················································……39

7.6.1判断整型表达式函数······················。·····················。·······································……39

GB/T17645.20-2002/ISO13584-20:1998

7.6.2判断SQL可映射的函数·······························································……’二二‘二‘““·42

7.6.3被使用的函数···········································································。················……45

附录A(规范性附录)实体名与缩写········································································……49

附录B(规范性附录)信息对象注册···。····································································……51

B.1文件标识···········。·····································································。···。············……51

B.2模式标识·。。································································································……51

B.2.1ISO13584通用表达式模式······························。············································……51

B.2.2ISO13584表达式模式················································································……51

附录C(资料性附录)EXPRESS-G图52

附录D(资料性附录)ISO13584表达式模式的使用··································。················……62

D.1概述························································································。················……62

D.2解释函数和变量语义································································一“’‘二‘‘··‘·…二‘二‘62

D.3GB/T17645的本部分中解释函数的表达····························································……62

D.4使用变量语义实体定义新变量的语义····························