对于现场设备、过程控制站和操作员站,整个控制系统采用了一个统一的全局数据库,从而降低
了建立数据通信及交互访问的成本和时间投资.
并保证整个系统范围内数据的一致性。
●提供系统全局范围的用户应用程序统一检查,覆
盖过程控制站、操作员站到智能的现场设备,包
括对用户程序的完整性和一致性检测。
●编程语言严格遵守IEC61131-3的国际标准,并具
有高性能的图形编辑功能:
-功能块图(FBD)
-梯形图(LD)
-指令表(IL)
-顺控图(SFC)
. 结构文本(ST)
●宽泛的功能块库,用户自定义的功能块也可以添
加到其中,宏库和图形符号可以为用户自定义功
能块建立图形和操作面板。
●可以通过GSD文件导入的方式来集成任何标准
PROFIBUS-DP和PA设备,并通过用户自定义对
话框形式来设计对这些设备组态配置的窗口。
●可以通过FDT/DTM技术来集成PROFIBUS现场总
线设备
系统结构
Freelance 800F过程 控制系统分为了操作员级
和过程控制级。操作员级包含了用于操作和显示.
归档和记录、趋势及报警等功能。控制器执行开环
和闭环回路控制功能。
Freelance 800F DigiVis操作员级
DigiVis操作员站使用PC硬件,既可以是标准商
务用PC机也可以采用工业级PC机,并运行在Micro-
soft Windows操作系统下。DigiVis支持双屏 显示操
作技术,也就是说使用一台PC机可以实现两个操作
员站,并用一个鼠标和一个键盘操作。
操作员级可以安装一个工程师站和几个操作员
站。ControlBuilderF工程师站对系统进行组态和调
式。通常,我们可以使用便携设备例如笔记本,实
现在办公室和现场对系统进行组态。操作员级PC机
也可以当作工程师站。工程师站在系统正常运行期
间可以关闭无需永久与系统连接。
Freelance 800F过程控制级
在过程控制级,Freelance 800F系统可以由
许多连接I/O单元的过程控制站组成。您可以选择这
些过程站为冗余模式(CPU冗余,现场总线模块冗
余)或非冗余模式。模块化的可插拔式输入/输出模
块依照系统过程信号的类型和数量自由选择使用。
AC800F控制器通过现场总线连接远程I/O或现场设
备。
系统通讯
操作员级和过程控制级之间通信使用TCP/IP
协议系统总线(基于以太网),您可以选择不同
的传输介质例如AUI、双绞线、光纤或同轴电缆。
Freelance OPC服务器用于连接更高-级的操作员
站(800xA) 或其他OPC客户端。Freelance控制 系
统中的实时过程值和报警可以通过OPC进行访问。
我们同时提供一个C语言编程接口嵌入到外部基于
Windows操作系统应用程序中,适用于实现用户使
用非标准OPC通信,即DMS-API 软件包。
项目数据库
所有配置的信号,变量和过程点都在Freelance
800F系统的公共数据库中进行管理。
●所有变量列表(输入,输出,内部变量)
●过程点列表(功能块)
●图形
●程序
因为数据库是系统范围的.数据只需要输入一
次,避免了多次配置可能产生的错误。
项目数据库文件可以容易的进行存档或备份。
当用户编程后,会自动建立变量和标签列表。
而且,变量和过程点都可以在FBD或IL中直接打开和
修改。
列表其他功能包括:
●项目范围内修改名称,注释,数据或模块类型
●基于特定标准的查找和显示
●交叉参考可以在使用了大量变量或过程点的系统
范围内迅速找到所需变量或过程点的程序和画
面。
ABB在测量和过程自动化领域是世界上最大的
设备及系统供应商之一。
保持这个市场地位的重要因素是我们产品的质
量,以及从制造一直到服务的质量。ABB自动化早
在1990年就获得了基于ISO9001认证的DQS证书,
随后又取得了基于ISO 9000/EN 29000的EQnet质量
认证。
然而,Freelance 800F不仅仅是技术卓越,我
们也花费了大量的精力在合理规划,安装和修订过
程上,使得工程设计和维护更快速更经济更有效。
IndustrS900是用于过程控制站的分布式I/0,它们通过Prof ibusDP现场总线与其所属的控制器
通信,既可以安装在控制室,也可以安装在现场以尽量接近现场变送器和执行器,从而 节省电缆并
减少安装费用。
S800 1/0及s900 I/0 具有以下优点:
●灵活性:对安装数量没有限制,可小数量安装,也可大量安装,可以安装在室内,也可安装在室
外,可以安装在墙上,也可安装在机柜中。
●模块化:可一步一步扩展,不会因自身限制而影响系统扩展。
●经济性:节省硬件,电缆,从而节省安装及维护费用.
●可靠性:因其自诊断及冗余等特性,可平滑的实现自动切换。
S800/S900型1/0 采用模块化设计,DIN 标准导轨式安装,由于对空间以及环境要求不苛刻,
S800/S900型I/0尤其适用于安装在分散的场合,并且对处理信号几乎没有要求,从而现场仪表和设
备信号可以直接接线到S800/S900 I/0 站。
其它特性: .
●所有模件具备故障自诊断功能并具有LED故障显示
●丰富的I/0模件类型,模拟量I/0精度≤0.1I%
●支持电源冗余
●所有I/0均可设定安全值
●具有短路保护功能
●所有模件 均可带电插拔,并自动识别
●支持冗余 现场总线
●支持HART协议通讯(S900所有I/0模件及部分及部分S800I/O卡件)
●具备本质安全特性(S900所有I/0模件及部分S800模件,BBx ia II C)
●可直接安装在危险区1区(仅S900)
S800 I/0 及S900 I/0采用Profibus DP通信协议。
S800/S900型I/0具有多种模拟及数字输入输出模件,以及热电阻和热电偶模件。所有I/0 模件
均通过了多种恶劣环境及应用领城的测试,证实了它在极其恶劣场合应用下的寿命及可靠性。
5、IndustrialT 操作管理级
5.1概述
操作管理级主要包括操作站、工程师站、数据网关、管理计算机及相应软件,另外还包括打印
机、操作台等辅助设备。操作站的任务是生产监控,即综合监视来自过程控制级的所有信息,进行监
示、报警、趋势生成、记录、打印输出及人工千预操作(发送命令、修改参数等)。工程师站用于系
统软件组态和调试投运,它无需永久性接入系统,操作站也可兼作工程师站( 需按工程师权限登
录) .
操作站及工程师站硬件均为标准的PC机(通用型或工业加强型甚至是便携机),采用微软公司
Windows 2000 操作系统(中英文版均可) . 因此PC机的配置水平与PC市场主流配置及最新的技术发
展保持同步并可根据用户要求确定。显示器的尺寸可选(17”/19″ /21”),还可选择触屏功能
(19”)。数据及命令输入一般由标准键盘和Mouse(鼠标)实现,但操作站也可按用户要求选配IP65工
业薄膜键盘和符合人类工程学标准的光电轨迹球。另外还可配备针式打印机用于打印报表,彩色喷墨
打印机用于图形硬拷贝。操作台用于放置操作管理级设备(PC 主机置于操作台内,显示器等外设置于
操作台上) .
操作员站上的操作监控软件DigiVis及工程师站上的组态调试软件CBF (Control Build F)是操
作管理级必须的软件(均基于Windows 2000 操作系统)。另外可选的软件主要有权限锁定软件
(DigilLock)、批量控制软件WigiBatch)、运行在管理PC机上的生产数据浏览软件(Di giBrowse)及运
行在数据网关PC上的开放数据接口软件(Di giDDE,DigiOPC, DigiAPI).
5.2操作监控软件DigiVis
DigiVis的功能包括图形显示、数据监视、系统状态显示、趋势归档、记录、过程及系统报警、
报表、操作指导、下达控制指令、系统诊断等。DigiVis 具有中文版,更加便于国内用户使用。
DigiVis软件有如下特性:
o
系统信息的层次化分布使操作清楚迅速
o
变量的直接快速搜索
采用统- – 信息概念、清晰的信息显示和操作员提示
DigiVis图形显示种类包括自由图形显示(工艺流程等)及大量标准显示,下面将 分别介绍:
自由圜形显示
自由图形显示是按照裴置工艺和操作员的专门需要进行组态的,用以表示工艺过程状态的显示画
面,工艺流程画面是典型的自由图形显示。
在自由图形中,当前的
and PA, DP communication rate can be as high as 12MB. Can (din/is011898 standard) bus
The biggest feature is its super robustness and data security. The system also supports MODBUS. The communication with intelligent field instruments is through
IART protocol or fieldbus (31.25kb profibuspa and FF Bus).
The system communication between the operation management level and the process control level is realized by the di ginets network (Industrial Ethernet /iee802.3 standard),
The user can select the communication transmission medium (ordinary cable or optical fiber) and network topology structure according to the actual situation of the application.
Popular PC and MS_ Wi ndows2000 has been widely used in various fields all over the world and has become the de facto standard computer platform
Set. The operating station 0s, engineer station es and data gateway GS of the industrial “system have adopted this platform, thus ensuring the
It is universal, open and easy to use, and brings great convenience for future technology upgrading and maintenance.
System engineering configuration is very convenient. The configuration language is based on ie0611313 industrial standard and provides function block diagram (FBD) and ladder diagram
(LD), instruction list (IL), sequential function diagram (SFC), structured text (st) and other graphical configuration modes. The system contains about 220 functions
The algorithm library of energy block, the basic library with more than 200 graphic symbols and the extended library with a large number of 3D symbols.
The system uses the same set of configuration tool software to complete the configuration and commissioning of process level, operation level and even fieldbus instruments, and uses the same
A global database.
The system scale has strong scalability. The single system supports 1 to 100 control stations and 100 operation stations at most. Each control
The station can support thousands of i/0 points at most, and the scale of the whole system can be expanded. The hardware of the system control station is all metal enclosure, which can withstand the most
Harsh industrial environment. The equipment can be installed in the cabinet or on the wall. The system complies with all current EMC standards and has CE standards
Annals.
Industrial “DCS system design purpose: the most economical engineering investment and the most powerful control function.
Industria1 “five features of DCS system:
1、 The comprehensive control system integrates DCS & PLC & field bus;
2、 RISC superscalar high-speed CPU with super performance;
3. High reliability, strict industrial application practice, and application performance of more than 1000 sets in China;
4、 Good openness, flexibility and expansibility;
5、 Easy engineering, friendly interface and simple maintenance;
2. Industria1 “system communication
Industrial ial “the system uses the international standard industrial bus. The field controller supports PROFIBUS, FF, MODBUS, can and other countries
International standard fieldbus, PROFIBUS is the most widely used open fieldbus international standard in the world, which is divided into FMS, DP and pa
Level III, DP communication rate can be up to 12MB. PROFIBUS is used to connect distributed i/0 stations, field bus instruments and other intelligent devices.
The communication among process station, operator station and engineer station is realized through the system bus diginets (Industrial Ethernet). 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:
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
mouth
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
mouth
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,up to 1 MBd
o
Foundation Fieldbus H1
up to 31. 25KBd
Foundation Fieldbus H2 (fast Ethernet)
HART
The system allows different types of field buses to be mixed and run simultaneously in the same field controller PS.
Industrial “field control explosion (AC800F) consists of the following components:
Basic unit pm802f
Power supply sa801f/sd802f
o
Ethernet network card ei801f/ei802f/ei803f
o
Fieldbus interface card fi810f/fi820f/fi830f
Various accessories
The main components of the field controller PS are described below.
Basic unit pm802f
The basic unit pm802f is composed of a metal rack and a CPU motherboard. It periodic