Aspen先進(jìn)控制采集軟件為所有支持先進(jìn)控制的平臺(tái)提供了數(shù)據(jù)采集和數(shù)據(jù)提取功能恃轩。數(shù)據(jù)采集和數(shù)據(jù)提取由兩個(gè)單獨(dú)的工具分別進(jìn)行處理。
開始數(shù)據(jù)采集前需要一個(gè)有效的輸入文件黎做。它包括需要收集的參數(shù)和標(biāo)簽名稱叉跛。你可以用任一文本編輯器創(chuàng)建該輸入文件。稍后本文檔將介紹文件格式蒸殿。
當(dāng)采集過程運(yùn)行時(shí)筷厘，數(shù)據(jù)被存儲(chǔ)在一個(gè)二進(jìn)制文件中。對(duì)此文件唯一可以做的事情就是從中提取數(shù)據(jù)宏所。
執(zhí)行數(shù)據(jù)提取時(shí)酥艳，數(shù)據(jù)采集必須已經(jīng)完成或正在進(jìn)行中。得到的提取文件楣铁，稱為.clc文件（以文件名后的擴(kuò)展名命名）玖雁，其可以移到PC上用于AspenTech桌面建模軟件使用。
數(shù)據(jù)采集
先進(jìn)控制采集的數(shù)據(jù)采集功能盖腕，可以通過將對(duì)應(yīng)信息添加到輸入文件中指定收集采樣周期和選擇需要采集的標(biāo)簽赫冬。當(dāng)數(shù)據(jù)采集過程開始時(shí)輸入文件由先進(jìn)控制采集組件運(yùn)行。
當(dāng)采集過程運(yùn)行時(shí)溃列，輸入文件的參數(shù)及對(duì)應(yīng)值在屏幕上顯示劲厌。
如果過程沒有在后臺(tái)運(yùn)行，并且消息被選中听隐，將出現(xiàn)每個(gè)采集樣本的信息补鼻。這些信息顯示最新時(shí)間的數(shù)據(jù)采集、收集到的樣本數(shù)量和可用樣本數(shù)雅任。
可選擇設(shè)置輸入文件參數(shù)风范，在你的系統(tǒng)數(shù)據(jù)庫中從采集流程中向標(biāo)簽寫入狀態(tài)/監(jiān)視數(shù)據(jù)。然后這些標(biāo)簽可通過DCS監(jiān)測沪么，以保證采集過程運(yùn)行順利硼婿。
采集過程可以無人監(jiān)管運(yùn)行足夠長的時(shí)間，直到你需要停止它禽车。如有必要寇漫，停止和重啟采集過程將不會(huì)丟失先前的任何數(shù)據(jù)。這在添加或刪除標(biāo)簽時(shí)是有用的殉摔。
當(dāng)采集過程開始運(yùn)行時(shí)州胳，指定標(biāo)簽（在輸入文件中指定）的數(shù)據(jù)被寫入到一個(gè)二進(jìn)制文件（使用輸入文件名并添加擴(kuò)展名.bin命名）。
數(shù)據(jù)提取
先進(jìn)控制采集的數(shù)據(jù)提取功能允許選擇提取所有采集數(shù)據(jù)或提取指定采樣周期逸月、標(biāo)簽和/或開始和結(jié)束時(shí)間栓撞、以及提取日期。默認(rèn)值設(shè)定為提取最大數(shù)量采集數(shù)據(jù)碗硬。
只有當(dāng)數(shù)據(jù)采集在運(yùn)行時(shí)或其采集完成后提取過程才可運(yùn)行瓤湘。
軟件沒有限定一個(gè)數(shù)據(jù)采集過程可創(chuàng)建的數(shù)據(jù)提取文件數(shù)捌归。
也可以看看
誰會(huì)使用先進(jìn)控制采集組件？
在使用先進(jìn)控制采集組件前需要準(zhǔn)備什么岭粤？
數(shù)據(jù)采集梗概
數(shù)據(jù)提取梗概
數(shù)據(jù)采集的使用
數(shù)據(jù)提取的使用
Aspen Advanced Control Collect provides data collection and data extraction functions for use on all Advanced Control-supported platforms. Data collection and data extraction are handled by two separate tools.
A valid Input file is necessary to start data collection. It includes collection parameters and the names of tags you want to collect. You can use any text editor to create this Input file. The file format is described later in this documentation.
When the collection process is run, data is stored in a binary file. The only thing that can be done with this file is extract data from it.
A collection must have been performed or data collection must be in progress, in order to perform data extraction. The resulting extraction file, called a .clc (because of its extension after the filename) can then be moved to a PC for use with an AspenTech desktop modeling package.
Data collection
The data collection capability of Advanced Control Collect allows you to specify the sample period for collection and the tags for which data is to be collected, by adding them to an Input file. This Input file is run by Advanced Control Collect when the data collection process is started.
When the collection process is started, the Input file parameters and their values are sent to the screen.
If the process is not running as a background process and messaging is selected, a message appears for every sample collected. These messages display the most recent time of data collection, the number of samples collected, and the number of samples available.
Optional parameters for the Input file that will write status/watchdog data from the collection process to tags in your system's database can be set. Then these tags can be monitored using a DCS, to make sure the collection process runs smoothly.
The collection process can run unsupervised for as long as necessary, until you need to stop it. If needed, stop and restart the collection process without losing any previous data. This is useful for adding or deleting tags.
As the collection process is run, data from the indicated tags (specified in the Input file) is written to a binary file (named using the Input file name with the extension .bin added to it).
Data extraction
The data extraction capability of Advanced Control Collect allows extracting all data collected or choosing to extract a specific sample period, tags, and/or the beginning and ending times and dates of extraction. The default values are set for extracting the most amount of data collected.
The extraction process can be run while the data collection is running or after it has stopped.
There is no limit to the number of data extraction files that can be created from one data collection process.
See Also
Who uses Advanced Control Collect?
What you need before using Advanced Control Collect
About data collection
About data extraction
Using data collection
Using data extraction
2015.11.14
