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[KB1130] HDS Files format PcVue 15
Applies to: PcVue 15 onwards Summary: This document describes the content of each HDS configuration files.Warning 1: Modifying manually these files can cause irreversible damage.Warning 2: This article is only […]
[KB1131] HDS diagnostics
Applies to: PcVue 15 onwards Summary: This article proposes different ways to diagnose proper functioning of HDS.Warning 1: Modifying manually these files can cause irreversible damage.Warning 2: This article is […]
[KB1129] HDS Files list
Applies to: PcVue 15 onwards Summary: This article lists all the files managed by the HDS.Warning 1: Modifying manually these files can cause irreversible damage.Warning 2: This article is only […]
[KB1145] Database status check at startup
Applies to: PcVue 11.2 onwards Summary: Program and mimic to be set up to check if connection to a database is valid at project startup. Details: At project startup, HDS […]
[KB1128] How to open SQL Server Configuration Manager
Applies to: SQL Server Summary: You may need to change the default configuration of your SQL Server instance, for example to allow TCP/IP access. The SQL Server Configuration Manager is not […]
[KB1114] How to filter events and continue to display users logon and logoff?
Applies to: PcVue 10 SP2 onwards Summary: Using the PcVue logviewer dialog box, it is possible to filter the events according to their nature while also displaying the connections and […]
[KB1089] How to check if HDS is running before starting PcVue?
Applies to: PcVue 8.10 onwards Summary:It is not advised to start PcVue if the HDS has not stopped properly. The HDS can sometimes take a long time to stop because […]
[KB869] SQL SERVER 2012 USER RIGHT
Applies to: PcVue 11.0 onwards when using SQL Server 2012 Summary: The HDS is unable to record in SQL Server 2012 database when PcVue is started with a User with […]
[KB859] HOW PCVUE HANDLES SQL SERVER CONNECTIONS
Applies to: All versions of PcVue Summary: How PcVue handles SQL Server connections.Originator: LM Details: When you start a PcVue project which uses the HDS and SQL Server for archiving […]
[KB853] Migration of The HDS Databases to PcVue 15
Applies to: PcVue 11.2, 12 and 15 The basic content of this article may also be applicable to other versions of PcVue although the detail may vary. Summary: This article […]
[KB849] Trend recording – New invalid point management on shut-down
Applies to: PcVue 11.1 update and later Summary: The trend recording invalid point management, which occurs when PcVue shuts down and restarts, has been improved for equipment with time-stamped protocols. […]
[KB840] How to import .HDS files
Applies to:PcVue 8.10 onwards Summary:.hds files are generated by the HDS, during abnormal operation, as temporary storage for events. The HDS will attempt to recover the information in them when […]
[KB769] HDS failed to connect to SQL server with test connection success
Applies to: Any PcVue version running HDS Summary: How to resolve the following error on HDS at start-up ” Failed to connect to SQL server …..” Details: If your SQL […]
[KB778] HDS replication : a simple SCADA Basic sample
Applies to: PcVue 8.10 onwards Summary: This article proposes a Scada Basic sample program explaining how to launch a SQL Server database replication, using replicationmanager.exe utility. If your replication doesn’t […]
[KB732] How to copy the contents of an HDS table to another SQL table or other relational database
Applies to: All PcVue versions including the HDS Originator: AD Summary: The SQL Server tools allow you to copy the contents of a table using two methods. On the fly […]
[KB716] Accessing SQL Server Database through VBA
Applies to: All VBA versions Summary: This VBA module allows to send read and write requests to a SQL Server database, using the ADO VBA Reference. The script is embbeded […]
[KB666] Client station trying to connect to the SQL Server instance
Applies to: PcVue version 10.0 onwards. Summary: This article warns you about what could happen in a HDS archiving configuration, when a station that is not a historical server, tries […]
[KB654] How .hds files work ?
Applies to: PcVue version 8.10 onwards. Summary: This article explains why the file “ProjectName_DatabaseName_TableName.hds” in the Databases directory contains records. Details: .hds files are created in the directory containing the […]
[KB620] HDS FAQ
Question: What is the meaning of the colors in the HDS icon? From PcVue 10.0 SP1 the HDS icon displayed in the System Tray changes color. Answer: The color of […]
[KB592] The origin of quality value 64 in the HDS trend tables
Applies to: PcVue all versions. Summary: In article KB243 there is a description of the quality values you can find in HDS tables. However, the quality value 64 is very […]
[KB590] How to convert a time into the FILETIME format used by the HDS
Applies to: PcVue version 11 onwards. Summary: How to convert, using SCADA Basic, a Unix time (also known as Epoch time, Posix time…) to the FILETIME format as used by […]
[KB568] How to create and export a custom table in the HDS
Applies to: PcVue version 9.0 onwards Summary: When using a Maintenance Plan & Export Task to export data from a database, the format of the output is defined by the […]
[KB555] Backing up SQL Server databases with HDS storage units
Applies to: PcVue version 8.10 onwards Summary: This article guides you through setting up a backup strategy for HDS databases. The actions shown were taken with a version of SQL […]
[KB550] How to temporarily disable database archiving
Applies to: PcVue version 8.10 onwards Summary: This article describes how to pause and resume HDS database archiving using VBA. (For proprietary archive units you must use the SCADA Basic […]
[KB537] Migration of the HDS Databases to PcVue 10.0
Applies to: PcVue versions 10.0, 11.0, and 11.1. The basic content of this article may also be applicable to other versions of PcVue although the detail may vary. Summary: This […]
[KB520] PcVue historical database – Log and trend tables description
Applies to: PcVue version 8.10 onwards. Summary: This article describes LOG and TRD columns in PcVue database, created when configuring a HDS archive unit Details: General In attached file, you […]
[KB517] How to optimize HDS table browsing for Dream Report
Applies to: PcVue 8.10 version onwards. Summary: Here is a useful trick if you need to quickly browse the table content of an HDS Database. For example in Dream Report, […]
[KB492] How to display local time in an SQL Server view
Applies to: Pcvue all versions Summary: This article explains how to add a TIMESTAMP field dynamically to Read requests from an external tool (for example SQL Server Management Studio) […]
[KB490] Database export limit
Applies to: PcVue version 8.10 onwards. Summary: This article describes a limitation on the export of data from the HDS. Details: Any export via the HDS is limited to 1.4 […]
[KB488] Changing the HDS tables
Applies to: PcVue version 8.10 onwards. Summary: This article explains how a manual modification of the tables created by the HDS can cause certain errors and in particular memory leaks. […]
[KB487] How to reduce the database LOG file (.ldf) size
Applies to: PcVue all versions. Summary: This article will help you to reduce disk space used by your LOG file when using the HDS and SQL Server 2005 or later. […]
[KB484] Troubleshooting HDS database creation or connection
Applies to: PcVue version 8.10 onwards. Summary: You start PcVue with a data archiving configuration using the HDS and that doesn’t work! Here is a checklist for troubleshooting the problem. […]
[KB481] HDS stopped
Applies to: PcVue version 8.2 onwards. Symptom: An historical configuration based on HDS is configured but the HDS never starts. Details: This issue may appear if you installed SQL server […]
[KB479] How to generate TS column if it is absent from the database
Applies to: PcVue all versions. Summary: This article explains how, when using the HDS, to generate a TS column by using an SQL query. Details: TS is an optional column. […]
[KB435] HDS Maintenance task
Applies to: PcVue version 8.10 and version 8.2. Summary: This article concerns any PcVue 8.10 project that has been migrated to PcVue 8.2 onwards and which uses the HDS.The technical […]
[KB359] HDS Replication and SCADA Basic
Applies to: PcVue all versions. Summary: A SCADA Basic program to manage HDS replication. Details: To use it, unzip it and copy the .ini file in TP directory (the program […]
[KB325] What do the EventNumber, VarType and AlarmState columns mean ?
Applies to: PcVue all versions. Summary: The meaning of the EventNumber, VarType and AlarmState columns in an SQL database as used by the Historic Data Server (HDS). Details: Sometimes it […]
[KB277] HDS trendgroup update rate applied to timestamped protocols should be set to 0s
Applies to: PcVue version 8.10 SP4 onwards. Summary: HDS trendgroup update rate applied to timestamped protocols should be set to 0s Details: This concerns only trends. When archiving trends with […]
[KB276] HDS archiving – Error when using compressed disk options
Applies to: PcVue version 8.10 onwards. Summary: HDS archiving – How to fix the error which occurs if using compressed disk options. Details: If following compressed options are ticked on […]
[KB243] The QUALITY field in OPC and the HDS
Applies to: PcVue all versions. Summary: This article refers to the format of the Quality field as defined in the specification of OPC Data Access 2.05a. Details: Please find the […]
[KB20] Use of Chrono time-stamping to make SQL queries
Applies to : PcVue all versions with HDS. Summary : This article explains how to use Chrono for making SQL queries. Details : In HDS data storage, the TS field […]