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
所需硬件及系统通信可在硬件编辑器(画面)中定义配置,并可得到操作站、过程站/现场控制器及
相应模件的详细信息。在站结构显示画面中,通过下拉式选择表完成操作站、过程站/现场控制器的
配置组态。每个过程站/现场控制器件处理显示规格及1/0 通道或通信接口的分配可分别组态。在硬
件编辑器中还可定义配置现场总线设备。
TW&aHT
图形化文档
组态好的程序和显示画面可以输出为完全图形化的文档而保存。使用各种排序条件(如按图号排
的可确保需要归档的数据清晰有序地输出。用户可根据需要指定归档范围,如程序和显示画面、交
叉参考、参数定义数据和说明。文件格式可以存储备用,FBD, IL, LD, SFC程序等进行归档时完全保
持在屏幕上的显示格式。使用系统文档管理功能,可生成整个或所选部分项目文档。
组志调试
调试期间,全部或部分用户程序被下载至操作站、过程站/现场控制器中。此后可以:
o、 下载修改过的内容
o启动和停止过程站/现场控制器
o启动、停止或复位任务
口定义功能块参数并激活它们
o显示、设定及跟踪过程变量的值
日可
o随时组合趋势窗口中的变量
口进行版本及状态检查
口进行诊断
调试期间CBF (Control Builder F)需从conf iguration(组态)方式
切換至commiss ioning (调试)方式,才可调用专门的编辑器以显示组
态好的程序。与组态时不同,调试时可显示I/0变量的实时值以及数
字信号的实时状态(0或1),例如FBD图中数字信号线的外形变化(实
线或虚线)就反映其状态。过程变量的当前值可同时反映在数值窗口
与趋势窗口中,为功能测试与调整提供了极其方便的手段。不仅可显示当前调出程序的1/0变量,而
且能够显示来自其它程序变量和中间变量的实时值。
可以在调试过程中修改参数以实现程序优化设置,调试者可决定修改是临时的或永久性的。通过
参数.上载可浏览某段时间所做的修改,并进一步选择存储那些永久性参数以保证冷启动时不会丢失。
输入输出强制及设定新值功能用于动态仿真目的。
BF (Control Builder F)的组态方式与调试方式之间的简单切换使得应用程序的修改十分容
易。下载程序时可选择下载全部或局部组态,故当系统在线(保持运行并与实际生产过程相连)而又必
须修改控制方案时,CBF 可以进行在线组态而不必停车。在这种情况下仅需下载修改过的内容(而不是
全部覆盖),对其它未经修改而正在运行的程序不会造成任何影响,从而保证生产过程无扰。
user
Different transmission media (RJ45 twisted pair, thin cable, thick cable or optical fiber cable and mixed media) and network topology can be selected for the system bus
Due to the adoption of tcp/ip protocol, the system can also realize ultra long distance communication with the help of public telephone network (dial-up mode) or satellite.
PLC and other subsystems communicate with industrial “system through Modbus protocol interface. The system also supports iec870-5 over control coordination
Discussion.
The flash EPROM inside PS provides more than 220 function modules (control algorithm subroutines), in addition to the base specified in IEC 61131 3 standard
In addition to this content, many powerful and strictly tested function blocks from practical engineering applications are also expanded. Any complex control
All schemes can be realized by the combination of these function blocks.
The function blocks provided by the system mainly fall into the following categories:

IS220UCSAH1A
o
Analog quantity processing
o
Digital quantity processing
Loop adjustment
Logical sequence control
c
Logical operation
Monitoring function
Acquisition function
c
Arithmetic operation
c
Tcp/ip protocol communication interface
Modbus protocol communication interface
1ec870-5 protocol communication interface (telecontrol)
4.2 field controller PS
Industrial ial “field controller PS is a special process control station, which is embedded with a fieldbus communication interface for users to use
Fieldbus technology provides a very flexible choice. Each PS is allowed to insert 4 fieldbus interface cards (card types can be different),
Each card is connected to a fieldbus to collect process data and diagnostic information from the bus. The interface card is easy to replace and plug and play
(plug & play) and can be plugged in and out with power.
The field controller PS has the following features:
o
Flexible: it supports all international standard open fieldbus and can be mixed
4 high-speed fieldbuses can be connected at the same time (max. 12 MBD)
Simple project: only use the same tool CBF (control build f) software for configuration, debugging and diagnosis

F8650X
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Access to all information from the site, including equipment management information
Global database of Fieldbus equipment, control level and HMI (human-machine interface)
Module identification with production operating parameters
c
Complete self diagnosis
Compact and rugged design
Front panel wiring
DIN rail (U-shaped) mounting well can be directly installed on the wall, which is simple and convenient
o
Allowable operating ambient temperature 60 C, automatic temperature monitoring
o
EMC (electromagnetic compatibility) conforms to en50082 standard
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Certification: CE, Namur, CSA, csa-nrtl, FM class 1 div2, ghost, Lloyd
Installation area: Class 1 div 2
The PS supports the following types of fieldbus standards:
Profibus DP,up to 12 MBd
Modbus RTU,1200 to 38. 4KBd
Industrial” CAN I/0 Bus
o
Open CAN -Bus,