Error Codes

You might encounter the following error codes while you use the Historian User API:

Table 1. Historian API Error Codes
Code	Message	Description
`100`	`ihuSTATUS_FAILED`	Generic failure.
`101`	`ihuSTATUS_API_TIMEOUT`	Server machine name not found, or server found but archiver service not running.
`102`	`ihuSTATUS_NOT_CONNECTED`	Not currently connected to a Historian server.
`103`	`ihuSTATUS_INTERFACE_NOT_FOUND`	Interface not found.
`104`	`ihuSTATUS_NOT_SUPPORTED`	Reserved.
`105`	`ihuSTATUS_DUPLICATE_DATA`	`ihuWriteData` was called with `error_on_replace = TRUE` and the supplied data would have overwritten existing data.
`106`	`ihuSTATUS_DUPLICATE_DATA`	Server found, but invalid username or password.
`107`	`ihuSTATUS_ACCESS_DENIED`	Access denied by the Historian server. Check username and password or security group membership.
`108`	`ihuSTATUS_WRITE_IN_FUTURE`	Write time stamp is too far in the future.
`109`	`ihuSTATUS_WRITE_ARCH_OFFLINE`	There is no archiver to hold the write time stamp.
`110`	`ihuSTATUS_ARCH_READONLY`	The destination archive to hold the write time stamp is marked as read-only.
`111`	`ihuSTATUS_WRITE_OUTSIDE_ACTIVE`	The write time stamp is before the active hours (now − "data is read only after") setting.
`112`	`ihuSTATUS_WRITE_NO_ARCH_AVAILABLE`	No archive is available to hold the write time stamp.
`113`	`ihuSTATUS_INVALID_TAGNAME`	Tagname used is not valid. Tagname does not exist in the Historian server.
`114`	`ihuSTATUS_LIC_TOO_MANY_TAGS`	Exceeded tag license count on the server.
`115`	`ihuSTATUS_LIC_TOO_MANY_USERS`	Exceeded user license count on the server.
`116`	`ihuSTATUS_LIC_INVALID_LIC_DLL`	An invalid license DLL is installed.
`117`	`ihuSTATUS_NO_VALUE`	No value has been passed to the function.
`118`	`ihuSTATUS_NOT_LICENSED`	Your Historian installation is not licensed.
`119`	`ihuSTATUS_CALC_CIRC_REFERENCE`	Reserved.
`120`	`ihuSTATUS_DUPLICATE_INTERFACE`	Reserved.
`121`	`ihuSTATUS_BACKUP_EXCEEDED_SPACE`	Reserved.
`122`	`ihuSTATUS_INVALID_SERVER_VERSION`	You are attempting to use this API on an invalid version of Historian.
`123`	`ihuSTATUS_DATA_RETRIEVAL_COUNT_EXCEEDED`	You requested too many samples in one read request.
`124`	`ihuSTATUS_INVALID_PARAMETER`	Generic failure when an invalid value is passed into the User API.