DeltaV入门教程
连接TANK101和Overview
１，以组态模式打开TANK101画面，双击上一页/下一页按钮。
２，在Previous Picture里，点问号，选择My_Ovw_ref.grf。在Next Picture里，点问号，选择My_Ovw_ref.grf。 ３，在Previous/Next Picture对话框点OK。文件 —〉保存。
添加SFC启动按钮
启动SFC过程的方法有很多种，比如可以创建一个数据链接作为输入端，选择START或STOP。最简单办法就是在TANK101主画面上添加一个按钮。
１，菜单栏，点 Insert —〉Push Button。把按钮放置在名为FIC-101/MODE的数据链接旁。用文本工具
Discharge（开始排放）。
２，选中按钮，在工具栏点Task Wizard（任务向导）工具
。出现Task Wizard对话框。
输入按钮名称：Start
３，在Task Category（任务类别）栏选择Command（命令）。在Tasks栏选择Write Value to Tag Expert。
４，点Perform Task（执行任务）按钮，出现对话框， 在Fix Database Tag（指定数据库路径），输入DVSYS.SFC-START/SP.F_CV。
设置Value为1，选中Numeric（数字）。
这一命令的作用是把SFC相关的控制变量设为1，而在SFCCTRL预定义设置里，1代表START。
５，点OK。保存画面。
提示：另一个调用Start命令的方法，是选中按钮，右键 —〉Edit Script（编辑脚本），然后为按钮对象编辑脚本（用VB语言）。
6 DeltaV Operate 运行模式（略）
7 采集、显示数据
DeltaV入门教程
The DeltaV system supports the collection of user-specified parameter field values and alarms and events for long-term storage, retrieval, and presentation. There are three main aspects of continuous data collection and presentation: ? Detection by defining history collection in the modules and nodes ? Storage by the Continuous Historian subsystem
? Presentation through the Process History View application
The DeltaV system also lets you export data to the Microsoft Excel spreadsheet software so that you can use that application’s extensive analysis and reporting features.
Continuous Process Data Collection
The following subsections contain information on data collection in the DeltaV system.
History Collection
The history collection function defines the module or node parameters that are monitored and stored in the DeltaV Continuous Historian.
History collection is an integral part of a module. If you copy a module that has
history collection, the new module includes the history collection. This enables you to set up history collection for key parameters and copy the module for similar
applications. Library modules include history collection so that you do not have to set up history collection when you copy a library module to an area. You can add additional history collection to a library module.
In Chapter 4, we set up history collection in Control Studio for the module that we created from scratch (LI-101) and acquired history collection for the other modules that we copied from the Library.
Continuous Historian and Alarms and Events Subsystems
Each workstation includes a Continuous Historian subsystem that detects and stores historical data and an Alarms and Events subsystem that detects and stores system events and alarms. The Continuous Historian subsystem monitors modules for
history collection on an area basis and the Alarms and Events subsystem monitors for events and alarms on an area basis. If you move a module from one area to another, history collection moves with the module. For example, if a Continuous Historian subsystem is collecting history data from a module in AREA1, and you move another module to AREA1, all the history collection for that module is automatically added to that Continuous Historian subsystem.
You can establish duplicate data acquisition and storage by assigning an area to two or more Continuous Historian subsystems.
You must assign the areas from which you want to collect history to the subsystems, enable history collection on the workstation, and download the workstation through the DeltaV Explorer to activate the subsystems and view the data. You set up history collection for modules through the DeltaV Explorer or through Control Studio.
In the following exercises we will assign area TANK-101 to the Continuous Historian and Alarms and Events subsystems, enable history and events collection on the workstation, download the workstation, and view the data with the Process History View application.
DeltaV入门教程
Assign TANK-101 to the History Subsystems
Assigning an area to a Continuous Historian subsystem allows the subsystem to collect historical data from the modules in that area. Assigning an area to the Alarms and Events subsystem allows the subsystem to collect alarms and events.
To assign TANK-101 to the subsystems 1. Open or restore the DeltaV Explorer.
2. Navigate to the workstation where the events and process data for the area will be stored.
3. Double-click the workstation to expand its contents.
A number of icons, including an Operator icon, an Alarms and Events icon, a Continuous Historian icon, and a Batch Historian icon, are listed under the workstation.
4. Select Continuous Historian.
5. Click the right mouse button, select Assign Area, and browse for TANK-101.
6. Click OK in the Browse dialog box. 7. Select Alarms and Events.
8. Click the right mouse button, select Assign Area, and browse for TANK-101.
9. Click OK in the Browse dialog box.
A confirmation dialog instructs you to download the station’s setup data and then log off and back on to add the area to the alarm banner. Click Yes on this dialog.
TANK-101 appears in the Contents View for the Continuous Historian and Alarms and Events subsystems. The Continuous Historian subsystem will collect historical data from the modules in plant area TANK-101, and the Alarms and Events subsystem will collect alarms and events in plant area TANK-101. The next step is to enable history collection on the workstation.
Enable History Collection
To enable collection from the Continuous Historian
1. Under the Workstation, click the Continuous Historian subsystem 2. Click the right mouse button and then click Properties.
DeltaV入门教程
3. Click the Enabled check box. 4. Click the Advanced tab.
This tab lets you set the maximum size and time span for the historian database as well as the size of history data sets. You can also set up automatic export of
history data sets by enabling that feature and then setting a valid directory path on the workstation, outside the DeltaV system. We will not make any changes on this tab. 5. Click OK.
DeltaV入门教程
To enable collection from Alarms and Events
1. Under the Workstation, click the Alarms and Events subsystem. 2. Click the right mouse button and select Properties.
The Alarms and Events Properties dialog box opens.
3. Click Enabled if it is not already selected. 4. Click the Advanced tab.
5. Set the Maximum Chronicle Size to 2500 records. 6. Click OK.
Download the Workstation To download the workstation
1. Select the workstation you want to download.
2. Click the right mouse button and click Download | ProfessionalPlus Station.
3. Read the message and, if you are sure that you are not controlling a process, click Yes to acknowledge the message. (Accept the default option to verify the configuration.)
4. A window opens showing the progress of the download and providing details on any problems encountered.