成控制策略组态和HMI组态。(即硬件配置组态、过程控制编程、操作
站组态- – 体化)
J 高性能图形化组态编辑工具,符合1EC61 131-3标准
功能库提 供220 多个功能(算法)模块,远超过IEC61131 3所规定 的基本内容
宏库提供200多个可扩展和定义的图形符号和大量三维图例供画面组态
o采用项目树使得程序生成灵活,程序组织清晰明了
J 采用统一的系统全局数据库
Windows 下的在线帮助功能
o项目文件备份
o口令保护
项目树
项目树是用于管理和调试整个用户程序(组态内容)的核心工具。所有的项目组态数据均以树结构
方式显示,在项目树中可访问系统组态的全部内容。项目树的结构非常直观,与Microsoft Windows
的文件管理器很类似。在项目树中:
o项目树中的组态数据呈结构化
口定义任务级别并分配到相应的硬件设备
的
J 为各任务级别分配所属程序
J程序、显示和记录可在项目树中调用、复制和移动
对程序编译检查,并显示相应的处理状态
o
引入和输出项目组态
o下载用户程序至相应的过程站PS
J‘ 下载用户程序至操作站或计算机接口站
项目数揭库
Industrial”系统的信号、变量和过程点均由- -个公共项目数据库管理。包括变量- -览表(如I/0
及内部变量)和回路(标签) – -览表(功能块用) .数据库是全局性的,故数据只需键入一次,从而
避免组态时可能发生的混乱和错误。- -次至数据键入还能大大减少系统调试时的时间耗费,缩短工期
并节省金钱。
建立用户程序时会自动生成变量和回路(标签)- -览表, 变量和过程点也可在FBD、LAD 或IL中
直接打开并修改。在- -览表中可对每条记录的名称、说明、数据或模件类型进行项目全局范围内的修
改,可进行指定条件查询。- -览表的另- -重要功能是交叉参考功能,它可帮助工程师在全系统范围内
迅速查找出并自动打开与指定变量或回路位号相关的程序及显示画面。
控制策略自动化功能组态方式
控制鐐略组态方法功能块圜(FBD)
功能块图(FBD)是- -种图形化组态编程语言,用于实现回路调节
控制和逻辑控制功能。FBD 程序是由若干功能块图有机排列而成,
各种功能、功能块及程序输入输出变量之间用信号流向线按照控制
逻辑进行连接。控制某过程所需的信号处理由FED程序完成。由于具备CAD功能,因此可以在图形工
作区轻松实现各功能和功能块的定位及连接。FBD 编辑器的输入输出区用来键入输入输出变量,输入
在左,输出在右,信号流向由左至右。从功能块引脚和信号线的版面形式(粗细、颜色等)可以知道数
据类型。功能块参数定义的方法是在FBD参数对话框中行进行填空。完成后的FBD程序需经编译,检
查错误和语法。查出的错误或警告以列表显示,用鼠标单击表中某–行可直接转到相应的出错源址。
利用交叉参考功能,可迅速调出与错误对应的显示画面和程序并容易地找到相关变量和回路。
FRD的组态步骤如下:
1.定义FBD程序名称
5
2.调用FBD编辑器
功能&功能块
3.选择所需功能或功能块
4.将功能块放置在图形工作区
5.用信号流向线连接各功能块
6.键入输入输出变量
7.定义功能块参数
8.编译FBD程序
9.纠正语法错误
控制策略组态方法_顺序功能圉(SPC)
利用顺序功能图SFC可以方便地生成清晰的、图形化的顺序控制程序。要建立- -个SFC,需组态
要被执行的任务(命令)步(step)和允许执行下-步的步进条件(transition),并为步和步进条件分配
功能块图、指令表或梯形图程序.顺序功能图的另-特性是能够产生选择性或并列性分支及对顺序结
构进行同步。完成一个顺序功能图(SFC)控制程序组态的同时,也自动生成- -个用于操作站上显示的
SFC画面。
控制策略组态方法_指令衰(IL)
指令表与计算机汇编语言比较类似,系统所有的过程处理功能均可由指令表编程实现.它能实现
诸如程序跳转和循环等FBD、LAD 及SFC所无法实现的功能。操作符可被显示和键入,并提供一个符
合IEC61131 3标准的带有下拉条的操作符列表框供直接输入。指令表中也可调用功能块和FBD图中
的其它操作,功能块参数定义方法与在FBD中完全-样。
22
MOL0O.
控制鐐略組态方法_梯形图(LD )
梯形图(LAD)也是1EC61131_ 3规定的一-种图形化组态语言,它起源于传统的由继电器线圈和触点
组成的反映逻辑电路电流状态的逻辑梯形图。梯形图的左右边界线分别称为供电母线和公共母线,梯
级由链接线、触点和线圈等梯形图元素构成。梯形图中同样也可调用功能块,功能块参数定义方法与
FRD中完全-样。梯形图最适于组态逻辑控制功能。
硬件结构
所需硬件及系
s the data from the
The signals of the field bus sensors are processed according to the control application program configured by the user, and then the calculation results are passed
The fieldbus interface card returns the corresponding fieldbus actuator.
Two field controllers can realize controller 1:1 redundancy, and undisturbed switching between master and slave PS. Two on each PS
Ethernet network card, the second network card is used to connect the system network diginets), and the second network cards can be interconnected with each other to form a special
Redundant communication link (diginetr) to ensure information synchronization between master and slave PS. — However, the master PS fails, and the slave PS can quickly and undisturbed connect the replacement worker
Make. All inputs and outputs also support redundant operation.
The data communication between the field process controller PS. operating station 0s and the engineer station es is completed by the system network (diginets), which is inserted
The – Ethernet network card on the PS basic unit provides the interface between PS and diginets. ES. Hardware configuration and PS
The user program is downloaded to the PS CPU through diginets and the first network card. After the field bus interface card is newly installed or replaced, the required group
The status information will be automatically reloaded. The configuration results and real-time process data are stored in RAM, and ram is installed on the Ethernet network card or battery card
The backup battery can maintain the configuration content and data in case of power failure.
Basic unit pmbo2f characteristics:
mouth
Installation slots of 4 fieldbus interface cards
c
Installation slot of 2 Ethernet network cards
Support redundant operation of Fieldbus interface card
Support hot plug of Fieldbus interface card
Technical indicators of basic unit pib02f:
CPU :Intel 80960HT25/75
32-bit RISC superscalar processor with operation speed of 150 MIPS
4 MB FLASH-EPROM
EEPROM,serial, 16 Kbit
o
Ram 8 MB (with error check and correction function, abb patent)
16 K internal cache (CPU cache RAM)
Ram backup battery (matchdog, optional redundancy)
Equipment internal temperature monitoring
Watchdog
I/0 sweeping cycle: configurable.
Time required to process 1000 IL (instructions):
< 1.0 ms (processing binary and 16 bit arithmetic instructions)
<2ms (processing fixed-point arithmetic instructions)
< 1.5ms (processing 32-bit floating-point arithmetic instructions)
Bthernet network card ei801f/ei802f/ei803f
The industrial Ethernet network card provides communication with the system network diginet s (iee802.3 Ethernet standard)
Interface.
Basic characteristics:
1ee802.3 Ethernet standard
o
Ei801f provides 10base2 thin cable communication interface
Ei802f provides 10BASE5 thick cable connection (through AUI interface)
Ei803f provides 10Base-T twisted pair communication interface
32-bit data bus, 100 mb/s
DMA (direct memory access) mode main memory ram, corresponding CPU operating load <4%
Optional ram backup battery
Fieldbus interface replacement card fi830f/fi820f/fi810f
Fieldbus interface cards are divided into several types according to different protocol standards. Each interface card provides – a fieldbus interface (PROFIBUS,
Can, FF, MODBUS, etc.). The configuration and parameter settings of the interface card itself and the field instrument (or remote i1/0) on the connected fieldbus are still
It is designed by the industrial “unified tool control bui lder without additional software. The interface card can be configured redundantly (separated between each other
Redundant basic unit pm802f) and can be plugged in and out and replaced online.
Fi830f: PROFIBUS DP interface card, as the master station, can connect 126 PROFIBUS DP slave stations, and the communication rate can reach 12mbd
One PS can plug in 4 fieldbus interfaces, connect 496 fieldbus devices, and one city (subsystem) of industrial “system can
Connect 4960 fieldbus devices (10000 i/0).
Fio the basic ones specified in the IEC 61131 3 standard
In addition to this content, many powerful and rigorously tested function blocks from actual engineering applications have been expanded. any complex control
The scheme can be realized by the combination of these function blocks.
The function blocks provided by the system mainly include the following categories:
o
Analog processing
o
digital processing
loop regulation
Logical sequence control
c
logic operation
Monitoring function
Collection function.
c
arithmetic operations
c
TCP/IP protocol communication interface
Modbus protocol communication interface
1EC870-5 protocol communication interface (Telecontrol)
4.2 Field Controller PS
Industrial” field controller PS is a special process control station, which is embedded with field bus communication interface for users to use
Fieldbus technology offers very flexible options. Each PS allows to insert 4 fieldbus interface cards (the card type can be different),
Each card is connected to 1 field bus to collect process data and
SR469-P5-HI-A20-ESR469-P5-HI-A20-E