Siemens SIMATIC PCS 7 OSx Uživatelský manuál stáhnout pdf (Strana 11)

Terms defined in glossary are in bold type.

Glossary-9

An OSx station that monitors the application process and communicates

with the control node. Unlike a supervisory station,itdoesnotstore

trending and other historical data or allow the compilation of reports or

BCL and RDT programs.

Contains data related to the tags that are supervised by OSx. Typically, the

data in this database is stored and referenced by tag:attribute

combinations.

Composed of all standard OSx programs, directories, and tables;usedwith

RDT.

S7 library of function blocks that can be used as tags for control and

monitoring on OSx.

Linux-based work station of the PCS 7 product line, formerly PCS

operations node. The OSx station controls and monitors the application

process by the exchange of data with the control nodes; it can be either a

supervisory or an operator station.

The spreadsheet version of reports produced by the Reports Editor.

An OSx station must be assigned this role before being separately shut

down or deleted from the database. Use the out_of_service role to run

diagnostic alarm card failover circuit tests.

Role of the OSx station that is responsible for coordinating system

functions and maintaining the reference copy of the database for the

SIMATIC PCS 7 OSx system. Only one OSx station can have the primary

role at any given time.

A collection of tags,alarms,action requests, and user IDs that are

associated with each other for reasons of function or security.

Table in the OSx database that contains the actual data taken from the

process being controlled. A process I/O table exists for each type of tag.

A form of temporary internal storage whose contents can be retrieved and

altered. Also called read-and-write memory.

Report by Exception occurs when certain data is reported by the control

node automatically, without a demand scan from an OSx station.

Examples include alarms and alarm acknowledgements, the automatic

logging of messages, action requests, BCL jobs, and recipe handshaking

exchanges. Only status attributes can be used to trigger RBE.

Operator Station

OSx Database

OSx Components

OSx Library

OSx Station

OSxess Report

Out_of_Service

Role

Primary Role

Process Group

Process I/O Table

Random Access

Memory (RAM)

RBE

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