Honeywell Tdc3000 Lcn

Application Module Specification and Technical Data
AM03-500 8/97

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TotalPlant Solution (TPS)
Application Module

Specification and Technical Data

Introduction
This publication defines the significant functions of the TotalPlant Solution (TPS) Application Module. The Application Module is one of the modules on the LocalControl Network (LCN). As Figure 1 indicates, it communicates with other modules on the same or other Local Control Networks and with process-connected devices on the Universal Control Networks and Data Hiways. Because of its position in the system architecture, the Application Module can accept inputs from multiple processconnected devices, as well as

from other modules on the different LocalControl Networks. It can also provide control outputs to control elements in the process or to other data points in modules on the different Local Control Networks, including itself. For more information on the role of the Application Module in the TPS system, refer to the System Technical Data. With at least one Application Module present in a TPS system, more advanced calculations and controlstrategies can be implemented. Each Application Module data point can have multiple inputs and outputs from many devices, and a single Application Module can handle many more data points than a

single process-connected box. The Application Module features a full complement of control algorithms. The Control Language that executes in the Application Module makes it easy to develop custom pointprocessing and special algorithms. The Application Module provides full cascade functionality between an AM point and any process data point resident in modules on different LCNs.

Functional Description
The relationships of the major functions of the Application Module are shown in Figure 2.

Fiber Optics Additional LCN Modules

Archive Replay Module

Application Module

History ModuleUniversal Stations

Plant Information Network Network Gateway Network Gateway

Universal Plant Network Work Station Module

LOCAL CONTROL NETWORK NO. 1 LCN Extenders Hiway Gateway Network Interface Module Process Manager DATA HIWAY Advanced Process Manager Advanced Process Manager Remote I/O Subsystem Smartline 3000 UNIVERSAL CONTROL NETWORKS

LOCAL CONTROL NETWORK NO. 2 Network InterfaceModule

Logic Manager Advanced Process Manager

Data Hiway Boxes

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Figure 1 — TotalPlant Solution (TPS) Architecture with Application Module

AM03-500 Page 3 Data Points The Application Module contains a process database made up of data points that the process engineer builds and assigns to it during configuration. Each data point is a collection of fixed and dynamic parameters thatperforms a specific function and is identified by a point name. Datapoint processing can use either preprogrammed or custom algorithms to calculate required information and/or initiate specific control action. In addition to regulatory data points that represent continuous variables in or related to the process, the Application Module also offers several utility datapoint types. These include thefollowing: • Timers—provide timing functions. • Counters—process counter inputs. • Flags—boolean variables. • Numeric—numeric variables. During configuration, the user defines the data-point name, point type, selected algorithms (if applicable), input sources (up to 16, from multiple sources), output destinations (up to 8), alarm trip points, and the processing schedule. Other information pertinentto the type of data point may also be entered, or standard default values may be used. Data Point Scheduling Each data point in an Application Module is processed according to a schedule defined by the process engineer during configuration. The engineer may assign a data point to a "fast" processor, a "slow" processor, or an internetwork point processor, and may choose from a variety of time...