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Cogent DataHub
Documentation
Installation/Upgrade
Licensing
Project Configuration/Management
- Moving WebView pages and media to DataHub v9/v10
- How do I delete or remove tags from my DataHub?
- How do I assign a key within my Database that is devired from a DataPoint?
- Dynamically using tag values in DataHub queries
- Running the Cogent DataHub as a service and using the Install directory to store the configuration files
- DataHub Email/SMS and Data Logging Trigger - Fire Only Once
- Transferring Cogent DataHub Configurations
- DataHub logging blank columns
- Importing OPC items into the DataHub
- My DataHub configuration has changed since the last time I closed it. What caused this change?
Code Samples
- How can I add an OPC Item to my Configuration through DataHub scripting?
- Convert Array Tags to a String
- DataHub Script Example: Delayed write to a point when a tag changes
- Exporting OPC Items in the DataHub to a CSV file
- Starting and Stopping DataHub logging to Excel through scripting
- DataHub ODBC Scripting using a non-auto-incrementing primary key
- Can I open other applications using the Cogent DataHub through scripting?
- Importing Calculations into DataHub
- How can I enable an OPC Connection with scripting?
- Importing DDE Items into DataHub
- Can the DataHub get the average value of a tag through scripting?
- DataHub ODBC Query Scripting Example
- How do I manually add a data point to DataHub through the script log?
- How to Print the OnChange Event Handlers Associated with a DataHub tag in Scripting
- How to find how long a tag is in condition using Cogent DataHub scripting
- Exporting DataHub Script Log to a Text File
- How can I use DataHub Scripting to get the HTML of a webpage?
- How do I create a DataHub script with a Point name that has a space character?
- How can I create a 2D array through DataHub scripting?
- Gamma Scripting Subseconds
- Adding groups to tag names in DataHub scripts
- Running a batch script when a PLC tag changes using Cogent DataHub
- How do I add images to my DataHub Windows Script?
- Printing the value and quality of an item when it changes in the DataHub
- How can I create tags in DataHub and force a data type?
- Reading from a Database and Reconnecting if connection is Lost
- Creating Internal DataHub Tags using a Configuration File
- DataHub Can Play a Sound Based on a Tag Value
- Using the DataHub to monitor the availability of a remote process
- Creating DataHub tags with a Tag Hierarchy
- How can I write to a file on a timed basis?
- Import Tag List and Values from CSV File into the DataHub
- How to make the value, timestamp and quality of one point equal to another point.
- Importing Bridge Configuration into the DataHub
- Is there a way to list all the items in a data domain in the DataHub?
- Updating a Data Point on Tunnel Connection Loss
- Exporting all DataHub points to a text or CSV file
- Taking data from a CSV file and exposing that to OPC Clients.
- Writing to a tag in the DataHub after a delay
- Exposing DataHub tunnel usage as a data point
- Can the DataHub launch an Excel workbook on startup?
Tutorials
- Video: Data Logging - Adding Rows in Database (12:39)
- Video: Configuring Cogent DataHub to Read from an ODBC Database (8:16)
- Video: How to Securely View and Control USB Cameras using Cogent DataHub (6:59)
- Video: How to Establish a Secure OPC UA Connection Using Cogent DataHub (8:37)
- Video: Bridging Data Between Tags (4:52)
- Video: Data Logging - Modifying Existing Rows in Database (8:47)
- Video: How to Configure the DataHub Quick Trend (3:02)
- Video: Configuring DataHub as an OPC Gateway between OPC DA and OPC UA Systems (4:21)
- Video: DataHub Quick Start for Modbus TCP (5:04)
- Webcast: OPC Data Aggregation and Tunnelling (26:55)
Feature Overviews
FAQs
- DataHub v10 Frequently Ask Questions
- Logging NULL Value in DataHub Database Tables
- How to Install Cogent DataHub as a Service using the Command Line
- OPC Client Considerations when connecting to DeltaV OPC DA Server
- Can DataHub receive multiple items in one call from an OPC UA Client?
- How do I load Cogent DataHub configuration files from a user defined location?
- DataHub Local Ports
- Logging Data with Local Timestamp in DataHub
- Cogent DataHub --> Server Status: Shutdown
- Required .NET Framework version for Cogent DataHub®
- Writing to fields with reserved names from DataHub Data Logger
- Representing Negative Infinity, Positive Infinity, Indeterminate, and Indeterminate values in DataHub
- DataHub values will not update in Excel
- Points are updating but Timestamp is 'none'
- DataHub Tunnel Handling Non-Normalized Floating Point Values
- When using OPC A&E in DataHub, what do the values for the State property mean?
- Multiple ODBC Logs for a Single Event
- DataHub Array Support
WebView
- WebView is Not Auto-Completing the Tag Names
- Adding more CPU cores to speed up WebView
- Video: Starting DataHub WebView (9:09)
- Creating Multiple URLs for use with DataHub WebView
- Webview: Simple Binding Y-Axis Range
- Disabling "Are you sure you want to exit" dialog in DataHub WebView
- How to use Format String in DataHub WebView
- How to turn off Bad Quality indicators in DataHub WebView
- Silverlight problems with DataHub WebView and Google Chrome
- Historized Data does not appear in the WebView trend
- How to Configure Historical Trending in DataHub WebView
- How can I change the point bindings on objects in WebView?
- How to Make a Lookup Table or Dictionary in DataHub WebView
- WebView Trend Automatic Advance
- How to create template page in Webview
- How to bind a query in DataHub to a listbox in WebView
- Resizing Font Sizes in WebView Trends
- Slow page updates in WebView
- Viewing Date in Trend Legend
Error Codes/Messages
- Cogent DataHub: Corrupted Configuration files causing OPC Group Creation to Fail (0x800706BA)
- OPC DA Clients are unable to connect to local Cogent DataHub OPC Server
- Accessing Custom ASP pages Using DataHub v9
- Not able to connect to MySQL with DataHub
- Logging Non-Normalized (NaN) floating point values to PostgreSQL using the Cogent DataHub
- SSL Certificate Failure with DataHub Tunneling
- I am trying to load a DLL into the Gamma Scripting Engine of DataHub