Common OPC error codes

(Server execution failed): Make sure the server machine is set up correctly by running an OPC client on it.

(General access denied error): If OPCPing works, make sure the user logged in to the client machine has a valid DeltaV account. If the client is run as a service configured with a specific user, make sure that user also has a valid DeltaV account.

(Unspecified error): Make sure the client has the appropriate privileges in the DeltaV system.

(The object exporter specified was not found.): Most instances of this error code occur when you try to connect two DeltaV systems and DCOM does not know which network

card to use for client/server communication. Make sure the system has NT 4.0 with service pack 3 (at least) and four hotfixes from Microsoft. (The hotfixes are already included in the DeltaV install image.) Then, make sure the network card for the client/server connection is the first in the network binding. Verify this by double-clicking Network in the control panel. Select the Bindings tab and then select all protocols from the drop-down list named "Show bindings for". Click the aforementioned network adapter in each category and move it up to the first place. Restart the system when prompted. Perform these tasks for both the client and server machines.

An invalid handle was passed.

A duplicate parameter was passed where one is not allowed.

The server does not support the specified locale ID.

The server cannot convert between the passed or requested data type and the canonical type.

The requested operation cannot be done on a public group.

The item's access rights do not allow the operation.

The item definition does not exist within the server's address space.

The item definition does not conform to the server's syntax.

The filter string is not valid.

The server does not recognize the item's access path.

The value passed to WRITE was out of range.

A group with a duplicate name already exists in the server.

The server does not support the requested rate but will use the closest available.

A value passed to WRITE was accepted but was clamped.

The server cannot currently communicate to the device requested.

The server cannot currently communicate to the device requested, but the item was added.

The function block has indicated a mode discrepancy.

The server could not open the database for browsing.

There are no branches to browse.

The name supplied is not a valid branch name.

WRITE operations are not allowed on the item.

DeltaV controller software revision does not match the workstation.

No device with the supplied name could be found.

No device with the supplied ID could be found.

There is no actual device associated with this object anymore.

Exceeded OPC Server license limit. Item not added.

The call succeeded, but there are no devices connected to this instance.

The handler is inconsistent.

The group is not in the handler.

The item is not in the handler.

The handler's counter overflows.

There is no interface pointer to the remote object.

Cannot find a real connection from the client.

This is a solitary group.

This is a solitary item.

Cannot find transaction for this ID.

The client sink does not provide the entry point of callback.