RSView Supervisory Edition Installation Guide

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• • • • •RSVIEW SUPERVISORY EDITION USER’S GUIDETo create new tables in an existing ODBC data source1. Specify the name of the existing ODBC data source in the ODBC Data Source fieldof the Data Log Models editor. For more information, see Help.2. Click Create Tables. RSView automatically creates new data log tables in the existingdatabase. You can also create tables manually.3. Set up the rest of the data log model, as described in Help.Creating a new ODBC data sourceTo create a new ODBC data source, use the ODBC Data Source Administrator in ControlPanel. For details about using the ODBC Data Source Administrator, click Help in theODBC Data Source Administrator window. You can create the tables for the new datasource using either method described previously.Switching log paths at run timeRSView lets you specify a secondary or backup path to use if the primary path for file setsor the ODBC database becomes unavailable. This could happen because of networkfailures, or because of lack of disk space on the computer where the data is being logged.If the primary data log location becomes unavailable, RSView begins to store the data in abuffer. The buffer can hold up to 64 Kb of data. If the primary location is still unavailablewhen the buffer fills, or when the maximum amount of time to buffer data has elapsed,RSView switches to the secondary path.RSView checks periodically to determine whether the primary file path has becomeavailable again. If it has become available, RSView switches back automatically.RSView also checks the status of the primary path if the secondary path becomesunavailable, and will switch back if possible. If both paths are unavailable, RSViewbuffers the data. If the buffer fills and both paths are still unavailable, RSView empties thebuffer (the data in the buffer is lost) and begins storing new data in the buffer. RSViewcontinues checking both paths until one becomes available.If the data log file is locked, data is buffered for the time specified for Maximum time tobuffer data in the Advanced Configuration dialog box, and then a new set of files iscreated on the primary path. If the secondary path is not set up, the data is buffered for 10minutes (the default value for maximum time). If the maximum time is set to 0, a new fileis started immediately.If the model is logging to the secondary path and the file is locked, the behavior is thesame: the data is buffered, and then a new file is created when the specified time periodhas elapsed.13-8
13 • USING DATA LOGGING• • • • •You can also switch back to the primary path or ODBC database manually, using theDataLogSwitchBack command or the DataLogMergeToPrimary command (see below fordetails). You cannot switch manually from the primary path or ODBC database to thesecondary or backup path.For models that use the file set format, RSView creates a new file set each time thelogging path changes.13 • PlaceholderUsing the DataLogSwitchBack commandYou can switch back to the primary path manually, using the DataLogSwitchBackcommand with either of these parameters:• DataLogSwitchBack (where is a data log model name)switches logging for the specified data log model.• DataLogSwitchBack * switches logging for all data log models that are currentlyrunning.You can use the DataLogSwitchBack command anywhere you can enter an RSViewcommand or macro.The switchback is performed only if the model is running, RSView is logging data to thesecondary or backup path, and the primary path or ODBC database is available. For filesets, RSView creates a new set of files when it switches back to the primary path.To enable operators to issue the DataLogSwitchBack command at run time, you couldcreate a button object and use the command as the press action.In order to prevent an adverse effect on performance, data is not moved from the secondary orbackup path when you switch back to the primary path or ODBC database. You must move itmanually using the DataLogMergeToPrimary command.Using the DataLogMergeToPrimary commandWhen you begin writing to, or reading from a data log model, RSView sends a message tothe FactoryTalk® Diagnostics log if there are files on the secondary or backup path.You must move data manually from the secondary or backup path to the primary path orODBC database, using the DataLogMergeToPrimary command with either of theseparameters:• DataLogMergeToPrimary (where is a data log modelname) moves data for the specified data log model, whether or not the model isrunning.• DataLogMergeToPrimary * moves data for all data log models whether or not they arerunning.13-9
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User’s GuideVolume 1Publication V
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ContentsPrefaceAbout the documentat
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CONTENTS• • • • •Plan how
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• • • • •RSVIEW SUPERVISO
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1Getting startedThis chapter descri
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1 • GETTING STARTED• • •
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2Exploring RSView StudioThis chapte
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2 • EXPLORING RSVIEW STUDIO•
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10Creating derived tagsThis chapter
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10 • CREATING DERIVED TAGS• •
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10 • CREATING DERIVED TAGS• •
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11Creating alarmsThis chapter descr
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11 • CREATING ALARMS• • •
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INDEX• • • • •Object Smar
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INDEX• • • • •redundancyS
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INDEX• • • • •Embedded va
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INDEX• • • • •stopping au
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INDEX• • • • •Procedures
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RSView Supervisory Edition Installation Guide

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