This chapter has answers to the most common troubleshooting questions that may arise. Any other known, unresolved issues are discussed in the README.txt which is included in the distribution archive. Please read that file and this page before contacting Cogent for help.
For responses to other common questions and issues, please see also the Cogent Community Forum Frequently Asked Questions. |
22.1. | I can't get a connection. |
Check the following: Is your connection to the Internet and/or network up and functioning normally? Does your firewall allow a local program (like OPC DataHub) to act as a server? Does the OPC DataHub run OK? Is the DataHub installed and configured correctly? For drag and drop operations, is the Drag & Drop Style at the bottom of the Data Browser set to MS-Office (Excel/Word)? Are you using the DataHub web server and is Skype installed on the same machine? There is a default option in Skype (follow the - - menus) to use port 80 as an alternative for incoming connections. You will need to either disable this, or change the port number of the DataHub's web server to something other than 80. | |
22.2. | Windows Error Messages |
For a list of Windows error messages, including those for TCP and DDE, please refer to Appendix H, Error Messages. | |
22.3. | OPC DataHub Error Messages |
Here is a brief explanation of some of the more common error messages you might encounter when using the OPC DataHub:
| |
22.4. | Messages from Excel |
When you save and close a spreadsheet connected to the DataHub and then attempt to reopen it, you may get one or more messages, depending on your security settings in Excel, or other circumstances. Here's a summary of each message, and what to do:
| |
22.5. | Excel not updating |
The default settings in Excel allow you to drag and drop from the OPC DataHub into your spreadsheet and see the data updating automatically. Sometimes however the Excel configuration may have been changed so that you do not see this. For example, if you drag a data point into Excel and you get the first value, but then nothing after that, you may want to check the following settings.
|
For responses to other common questions and issues, please see also the Cogent Community Forum Frequently Asked Questions. |
Copyright © 1995-2010 by Cogent Real-Time Systems, Inc. All rights reserved.