Issue
Vista locks up randomly and displays application crashes. Investigating the Windows Event log shows the following errors pointing to tacldv32.dll. For more information on Windows Event Log, see Viewing, Saving, Sharing Windows Event Logs for Troubleshooting Purposes.
Faulting application tacos.exe, version 0.1.0.0, faulting module tacldv32.dll, version 1.0.0.1, fault address 0x00007310
Product Line
TAC Vista
Environment
- Vista Server
- LNS Communication Port
- Large LNS network, or many smaller LNS networks
- Orion Stack
Cause
The DLL file, tacldv32.dll, is responsible for managing communications through an LNS communication port. If that is being overwhelmed with information from too many devices on the port, this DLL will crash.
If the number of networks is only one and the database size is reasonable then the problem can be caused by a corrupted and non functioning LNS database.See Also Echelon LNS Utilities LNS Database Validator.
Resolution
If the number of networks is high then LNS communication must be managed by an Orion Stack, or NIC-852. This does not utilize tacldv32.dll and will stop the application crashes.
If the number of networks is low, but the size of the networks is quite large, then it is also advisable to allow the Orion Stack to manage communication and will prevent the application crashes.
If the number of networks is low and they are not very sizeable, then ensure that LNS database is working properly independently of Vista Server. If it has problems, investigate the LNS problems further, looking for any errors that can be searched on other articles.
*Note that if you receive the tacldv32.dll error and are currently using an Orion Stack or NIC-852. There is a problem with the Orion Stack or NIC-852 installation or configuration.
Hovering the mouse over the Communication Port objects in the TAC Vista Workstation should produce a pop-up window stating "Loytec Port". If it says "LNS Port", there will still be a need for using tacldv32.dll resource.
