User manual
Klinkmann Automation SPA Bus Server 29
SPA Server Ver 1.x User Manual Rev 2.3 120XXM23
Error message
Possible reason
DCOM not installed
DCOM has not been installed
Server execution failed
1) OPC Server can not be started
2) Identity for OPC server not properly configured
3) OPC Server is not located on a local hard disk
4) OPC Server path in registry is too long or uses LFN
(Long File Names)
5) DCOMCNFG Location is not set to Run on this
computer.
Class not registered
OPC Server has not been registered
RPC server is unavailable
1) Remote Procedure Call service is not running on the
OPC Server computer
2) Invalid computer name for remote OPC Server
3) Make sure TCP/IP is installed properly
Interface not supported
1) Permission not granted to OPC Client
2) Guest account disabled
Access is denied
1) DCOM security not configured properly
2) OPC Server application not located on local hard disk
3) SYSTEM account in DCOMCNFG must have Access,
Launch and Configure privileges
Error 80070776
Network error -- TCP/IP has not been configured
properly
Catastrophic failure
1) Trying to access an object before it is created
2) Unhandled exception is occurs on the OPC Server
Not enough storage
SYSTEM account in DCOMCNFG must have Access,
Launch and Configure privileges
Running SPA “OPC & DDE” version as Windows NT Service
To install SPA Server “OPC & DDE” version to run as Windows NT Service, the SPA
Server must be started with command line parameter "/Service":
SPA /Service
After this the “SPA OPC & DDE Server” NT Service will be installed with Startup type
“Manual”. The Service Startup configuration can be changed by MS Windows NT Control
Panel/Services configuration dialogue boxes. The Allow Service to Interact with
Desktop checkbox in “Service” dialogue box must be checked (the “Service” dialogue
box can be invoked by pressing the “Startup” button on “Services” dialogue box when
Service SPA OPC & DDE Server is selected). If Allow Service to Interact with
Desktop is not selected then SPA Server full functionality is not ensured (e.g. the Server
configuration can not be changed, no message boxes will be displayed, etc.).
To use SPA Server “OPC & DDE” version as Windows NT Service you may need to
configure DCOM. For details of configuring DCOM refer to Configuring DCOM section of
this manual. If “SPA OPC & DDE Server” NT Service will be accessed only from local
OPC clients (i.e. SPA Server will not be used as a remote OPC Server), then custom
access and launch permissions “NETWORK” are not needed.