Date,2009-7-30
File,SSP1_10C.1
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
符号
Date,2009-7-30
File,SSP1_10C.2
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
绝对寻址和符号寻址
A I 0.0
= Q4.0
A I 0.4
= Q8.5
Call FC18
A,PLANT_ON”
=,ON_INDIC”
A,M_FORW”
=,MOTOR_FORW”
Call,COUNT”
Symbol Address Data Type Comment
MOTOR_FORW
COUNT
PLANT_ON
ON_INDIC
M_FORW
Q8.5
FC18
I 0.0
Q4.0
I 0.4
BOOL
FC18
BOOL
BOOL
BOOL
Motor forwards
Count bottles
Switch on plant
Indicator,Plant is,On”
M.-con,switch,Motor forwards
(最多 24 个字符 ) (最多 80 个字符 )
Date,2009-7-30
File,SSP1_10C.3
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
局部数据块,块的声明表 程序编辑器
- 块参数
- 局部 /临时数据跳转标号 块的代码区 程序编辑器符号寻址 - 概述何处使用符号? 它们存放在何处? 如何建立它们?
全局数据,符号表 符号编辑器
- 输入
- 输出
- 位存储器、定时器、计数器
- 外设 I/O
数据块组成 DB的声明表 程序编辑器块名称,符号表 符号编辑器
- FB
- FC
- DB
- VAT
- UDT
Date,2009-7-30
File,SSP1_10C.4
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
打开符号表
Date,2009-7-30
File,SSP1_10C.5
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
编辑：查找与替换
Date,2009-7-30
File,SSP1_10C.6
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
查看：过滤器
Date,2009-7-30
File,SSP1_10C.7
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
查看：排序
Date,2009-7-30
File,SSP1_10C.8
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
符号表：导出要把表存到何处?
把表存成何种格式?
Date,2009-7-30
File,SSP1_10C.9
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
符号表：导入这里选择目录路径输入文件名选择格式
Date,2009-7-30
File,SSP1_10C.10
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
编辑符号 (在 LAD/STL/FBD 编辑器中 )
Date,2009-7-30
File,SSP1_10C.11
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
符号信息 (在 LAD/STL/FBD 编辑器中 )
Date,2009-7-30
File,SSP1_10C.12
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
符号选择 (在 LAD/STL/FBD 编辑器中 )
Date,2009-7-30
File,SSP1_10C.13
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
符号优先
Symbol Table
Old Entry:
Plant ON = Q8.0
New Entry:
Plant ON = Q4.0
优先：
绝对地址优先：
符号
Date,2009-7-30
File,SSP1_10C.14
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
程序的反编译缺少符号表 替换表示法符号表 对全局数据（如 I 1.0） 使用地址而不用符号
DB的符号部分 DB的单元（如 DW1） 使用地址，而不用符号
FB 的符号部分 对块的局部和暂时数据使用地址而不用符号（如 LB 17）
对参数使用替代的记号，而不用符号，如 PAR 1
FB注释部分 对跳转表使用替代的记号，而不用符号。如 M 001
Date,2009-7-30
File,SSP1_10C.15
SIMATIC S7
Siemens AG 2000,All rights reserved.
Information and Training Center
Know ledge for Automation
练习 10.1：为 FC15建立符号表
Plant On
Manual Mode
Automatic Mode
Conveyor Forward
Conveyor Backward
Start
Stop
Jog Forward
Jog Backward
Automatic/Manual
Enter Mode
Q 8.1
Q 8.2
Q 8.3
Q 20.5
Q 20.6
I 0.0
I 0.1
I 0.2
I 0.3
I 0.4
I 0.5
Q 4.1
Q 4.2
Q 4.3
Q 8.5
Q 8.6
I 0.0
I 0.1
I 0.2
I 0.3
I 0.4
I 0.5
符号 地址(A版 ) 地址(B版 )