塔板負荷（CTL）：
該模塊用于計算精餾塔的負荷條件。計算值可用于APC防止塔液泛的參考信息或控制條件。
約束推桿：
該算法是一種在線閉環單變量優化技術。
壓力補償溫度（PCT）：
塔板上液體的組成通常與該層板上的溫度和壓力相關。在APC中，該模塊常用于精餾塔控制，如切點控制。
附加模塊：
控制應用的時間監控，用于抑制控制信號噪聲的先進信號濾波器。
在橫河電機DCS中，COAST模塊運行在FCS下。有關詳細信息，用戶可參考COAST模塊手冊和項目文檔。
Exarqe：魯棒質量預估器：
該軟件包適用于抗干擾且高持續精度的預估測量。該軟件包有時也被稱為“軟測量傳感器”，用于提供化學品分析/質量的相關信息。
預估量是基于選中的簡單測量值（溫度，壓力，流量...）預測關鍵產品質量或復雜過程變量當前值的計算變量（CV）（由于顯著的延遲或可靠性差等原因其不能在線測量，但測量要求不頻繁時可用）。在典型應用中，RQE為閉環控制提供了過程計算值。如圖3.0a所示，RQE特別適用于Exasmoc APC策略的應用。
Exarqe有一個離線設計工具，用于創建Exarqe在線文件，它在Exasmoc站上運行。詳情請參考Exarqe手冊和項目文件。
A3.1構建Exasmoc控制器的基本流程圖
下文介紹的基本流程圖將使用戶了解為APC項目創建Exasmoc在線控制器的基本步驟。 此外，它還為不習慣使用SMOC離線設計和仿真包的用戶提供SMOC-PC（脫機開發工具）感知。詳細信息可在相應的手冊中找到。
開始
設計工廠階躍測試/偽隨機二進制序列測試
AIDA數據生成器（測試數據收集并生成AIDA輸入文件）
在AIDA中導入數據文件
選擇模型輸入和輸出
執行預擬合FIR模型
擬合數據：估計模型參數
模型擬合度分析驗證
檢查模型是否可用
響應模型和可測量干擾模型的.TXT文件（AIDA模型）
AIDA存檔
原文：
Column Tray Loading (CTL):
This module calculates loading conditions in a distillation column. The calculated values can be used for information or for control purpose as a part of APC strategy for protection against flooding.
Constraint Pusher:
This algorithm is an online closed loop single variable optimization technique.
Pressure Compensated Temperature (PCT):
The composition of a liquid on a tray of a column can often be related to the temperature and pressure on that tray. The module is used in APC strategies for a distillation columns e.g. for cut point control.
Additional Modules:
Up time monitoring of control applications, signal filter for advanced rejection of noise from control signals etc.
In Yokogawa DCS, COAST modules run under FCS. For details, user shall refer to COAST module manual and project documentation.
Exarqe: Robust Quality Estimator:
This package is for robust and high-sustained accuracy inferred measurements. This package some times also called as “soft sensor” for providing analytical/quality related information of chemicals.
An inferred measurements is a Calculated Variable (CV) based on selected simple measurements (temperature, pressure, flow….) used to predict the current value of a critical product property or a complex process variable, when it can not be measured online but infrequently, with significant delay or not reliably. In typical application, RQE provides a calculated process value for a closed loop control purpose. RQE is particularly suited for applications in combination with Exasmoc APC strategies as shown in figure 3.0a.
Exarqe has an offline design tool, which finally creates Exarqe online file, which runs on Exasmoc station. For the details user shall refer Exarqe manual and project documentation.
A3.1 Basic Flow Diagram for building Exasmoc controller
The basic flow diagrams explained below would provide users to understand basic steps on how Exasmoc online controller is created for the APC project. Further it intends to give a feel of the SMOC-PC (Offline development tool) for the users who are not accustomed to the use of SMOC offline design and simulation package. The detailed information is available in respective manuals.
Start
Design Plant Step Test/ Pseudo Random Binary Sequence Test
AIDA Data Generator (Test Data Collection & generation of input file for AIDA)
Import Data File in AIDA
Select Model Inputs & Outputs
Perform Pre Fit Estimate FIR Model
Fit Data : Estimate Model Parameter
Analyse Fit for Model Validation
Check Model Adequacy
.TXT File (AIDA Model) for Action Model & Measured Disturbance Model
AIDA Archive
2017.3.29
