L CM50S Specification and Technical Data CM03-541 Release 5.0 6/95 detergant coffee chocolate CM03-541 Page 2 CM50S Specification and Release 5.0 Technical Data Introduction within an overall plant-wide management information system. An Ethernet network is the CM50S—Release 5.0 consists of communications medium, if the One CM50S on a OpenVMS a Honeywell software package Plant Network Module is used to system can support up to four that, along with associated interface the LCN to a Digital connections to Plant Network hardware, enables a Digital system. Modules and/or Computer Equipment Corporation Gateways. The Plant Network Using the Plant Network Module, OpenVMS system to function as Modules and Computer Gateways the CM50S package supports all a Computing Module of the X may reside as nodes on the same Digital systems bus structures as TDC 3000 Local Control or different LCNs. Figure 1 well as busless Digital systems, Network as shown in Figure 1. shows two CM50S packages such as VAXstation and Fault connected to the same LCN, with Tolerant VAX systems and AXP Accordingly, the Digital system each using one type of physical systems. Computing Module can connection. exchange information with all The Plant Network Module other nodes on the LCN, and can Note, CM50S Release 5.0 fully interface is through an Ethernet serve as a data-gathering node supports existing Computer cable. The Digital system thus Gateway installations. The Plant becomes a module on the LCN Network Module, however, with the ability to communicate OpenVMS, AXP and VAX are replaces the Computer Gateway with other LCN modules and with trademarks of Digital Equipment for all new installations. process-connected devices on Corporation. CM50S CM50S Digital Digital Digital VAX VAX AXP HDLC I/F Board Multi-User LAT Work Station Personal Protocol Computer Computer HDLC Protocol PLANT INFORMATION NETWORK (PIN) Fiber Optics CG PLNM PLNM AM A X M US U X S HM ARM UWS To Other LOCAL CONTROL NETWORK (LCN) LCN Devices HG NIM PLCG NG LCN To Data Hiway Universal Control Network To NGs on Other LCNs Extenders 13555 Figure 1 — TDC 3000X Architecture with DEC OpenVMS CM03-541 Page 3 the UCN and Data Hiway. Functions When the existing Computer Gateway is used for the hardware • Provides a standard interface between the OpenVMS Computing interface, a Honeywell-supplied Module and one to four TDC 3000X LCNs. board is inserted into a VAX • Collects data from other LCN nodes and stores data to other nodes system and an HDLC connection on request from the OpenVMS applications. is used as the communications medium. • Collects continuous history data from the History Module. • Holds a database that represents computer programs, plus other Using the CM50S, the OpenVMS computer-prepared data. application can access real-time or • Provides for scheduling and/or operator/event demand of historical data residing in computer programs. TDC 3000X Modules on the • Transmits messages to Universal Station operators. LCN. This data can then be used by process management • Receives messages from CL Programs, the Process Manager, and application packages that reside Multifunction Controller sequences. in the Digital system. Process attributes can be derived by programming languages. information system, plant modeling and simulation management data collection and application packages to optimize advanced control at a higher level the processes and more easily Functional Description and wider scope than is possible anticipate required process with any other device. These changes. Figure 2 shows the relationships tasks include both current values of the Plant Network Module to and historical data. Typically, In addition, control parameters the Digital system and LCN. computing module control that establish setpoints can be strategies are implemented along returned directly to the LCN The Plant Network Module with Process Manager and Application Modules and interfaces an OpenVMS Application Module control process-connected devices. computing module to one to four strategies. Historical data is available for TDC 3000X Systems. statistical quality and process control applications. Operator The Digital system is expected to interfaces can be improved by be used for management sending interactive messages to the LCN Universal Station. By using the OpenVMS data communications capabilities, it is APPLICATION also possible to exchange data PROGRAMS CM50S with nonprocess systems such as Digital System SOFTWARE laboratory systems, material and Host Processor inventory control systems, and plant-wide information systems. In OpenVMS OPERATING SYSTEM this way, the TDC 3000X System can become a node in existing Ethernet LAT or HDLC computer networks. Communications Network User-written application programs VAXELN OPERATING SYSTEM supported by CM50S execute CM50S SOFTWARE within the environment provided LCN Data Access Plant Network Software by the OpenVMS operating Module or DATABASE Environment system. These programs also use Computer Gateway ACIDPs & CRDPs special interface routines that simplify the exchange of data with RNOS OPERATING SYSTEM other TDC 3000X nodes and boxes. These interface routines are compatible with the use of Fortran, Pascal, or “C” TDC 3000 X LOCAL CONTROL NETWORK 11384 DEC is a trademark of Digital Figure 2 — Relationship of the Host Processor to PLNM/CG to LCN Equipment Corporation. CM03-541 Page 4 Data Collection and Storage process device, UCN/Hiway, and Station operator by way of program level. CM50S calls. Such messages Application programs can gain optionally may require access to data throughout the Program Security confirmation by the operator. This TDC 3000X System. This is allows the application programs to accomplished through four major Through security mechanisms, request an action and to be types of functions: users can be denied the ability to suspended until a confirmation is • Get Data perform CM50S functions, received from the operator that including writing to the LCN. the requested action has been • Store Data completed. • Get History To provide this security, a CM50S • Get/Send Message Manager user account is Other devices on the LCN can established under OpenVMS. send character-string messages Data The manager has full-privileged to individual application programs access to all CM50S functions, in the computer. These For Get and Store-Data calls, the including the granting of CM50S messages are received by the values are requested either by usage permissions to other end Plant Network Module and held, multi- or single-point/parameter users. pending a transfer request by the names or in Data Definition Tables application program. (DDT) that are defined and built File Transfer by the user in the host computer. Gateway Database The tables contain ASCII data Files from History Modules can be point and parameter names that read into the OpenVMS system, Visibility of computer operation at will be fetched from and stored to and downloaded back to the the Universal Station is provided the TDC 3000X System. same or different History Module. by a Plant Network Module ASCII type files from the LCN can database. CM50S users can view The LCN data access software be edited on the OpenVMS the configuration and status data, converts the external point system before they are written and the names of the points in names to internal identifiers that back to the LCN. The the PLNM . The database can are used in actual data transfers. Engineering Personality File also be accessed by using the Real values are returned in Management commands (Copy, data-collection and storage engineering unit format. The Rename, Delete, List Volumes, facilities described above. This status of data collected, as well as List Catalogs, List File Attributes database consists of the following the status of the call, is also and Create/Delete Directory) can types of information: returned. Up to 300 parameters also be invoked from the • Advanced Control Interface can be collected or stored using a OpenVMS system. LCN Journals Data Points (ACIDPs) single DDT or multi-point list. can also be extracted into open VMS files. • Calculated Results Data Points (CRDPs) Once built, these tables are typically stored in the host History Both of these can have optional computer. For Get-Data calls, custom data segments that hold however, they can be made Continuous history data from data that is associated with resident in the Plant Network History Modules can be obtained application programs. For Module. The Plant Network by OpenVMS application example, the results calculated by Module also supports the programs. This includes not only an optimization program can be accessing of Custom Data PV values, but other real stored in a data point's custom Segment arrays using a single parameters selected for data segment. The results are call. historization by the History Module. Both snapshots and then available to the operator at a Universal Station, for historization Storing data is handled in a similar averages can be accessed. in the History Module, for manner to collecting data: either Historical data for up to 24 calculations by the Application multi- or single-point, whole parameters can be obtained in a Module, etc. In addition, each arrays, or data definition tables single call. History can be ACIDP is associated with an can be used. There are several accessed in relative or absolute application program and levels of security provided to time. Min/max data is also represents that program's status assure proper access control for available. to the Local Control Network. writing data to the Local Control Each ACIDP also contains Network and its associated UCNs Messages security information about its or Data Hiways. Writes can be associated program, which allows prevented at the CM50S, the Application programs can send messages to the Universal the program's access to CM03-541 Page 5 TDC 3000X data to be restricted; develop a generic performance obtained. Transactions per for example, to read only. model. The benchmark tests second and parameters per Up to 250 ACIDPs and up to 500 show a base level of performance.