_offline
| attribute (neutral) | Bit number of the 64bit status bits | type | description | 
|---|---|---|---|
| _active | 0 | bool | variable active/inactive | 
| _aut_default | 2 | bool | default value set automatically | 
| _aut_inv | 6 | bool | invalid set by an interface driver | 
| _bad | virtual == _invalid || _out_prange | bool | original value invalid | 
| _compr | 13 | bool | The archived value was compressed in the database. The archiving/compression is used. | 
| _compressions | bool | RDB compression calculation is available. For detailed information see Details on RDB Compression. | |
| _corr | 12 | bool | value corrected | 
| _corr_add | 15 | bool | additional correction value | 
| _default | virtual == _exp_default || _aut_default | bool | default value set | 
| _default_bad | 8 | bool | default value invalid | 
| _exp_default | 1 | bool | default value set explicitly | 
| _exp_inv | 5 | bool | explicit invalid | 
| _from_GI | 9 | bool | set during general query | 
| _from_SI | 10 | bool | set during an individual query | 
| _invalid | virtual == _exp_inv || _aut_inv || _stime_inv | bool | original value invalid | 
| _manager | int | Manager, which set the value (read only) | |
| _offline_bad | virtual == ! (_corr || !_online_bad || (_compr && !comp_corr) | bool | current offline value invalid | 
| _online_bad | virtual == _default ? _default_bad : _bad | bool | current online value invalid | 
| _out_prange | 3 | bool | WinCC OA value range violated | 
| _out_range | 4 | bool | value of the variable "out of range" | 
| _per_active | 11 | bool | interface driver active | 
| _status | bit32 | bit pattern for all status bits Bits 0-23: internal status bits Bits 24-31: user bits | |
| _status64 | bit64 | bit pattern for all status bits Bits 0-23: internal status bits Bits 24-55: user bits Bits 56-63: free (not used bits) | |
| _stime | time | source time | |
| _stime_inv | 17 | bool | source time invalid (corrected by the Event Manager) | 
| _text | langString | Current specified alert text such as "alert" of a data point. In the PARA module the _text attribute is the "Came text" of an alert handling. CAUTION! The historical values of the attribute _text cannot be read. | |
| _type | int | original value type | |
| _user | int | User, who was logged in, when the value was set (read only) | |
| _userbit1, ..., _userbit32 | 24-55 | bool | user-defined status bit 1-32 | 
| _userbyte1 | 24 | bool | user-defined status byte 1 NOTE: You can't query the _offline.._userbyte1 -4. | 
| _userbyte2 | 32 | bool | user-defined status byte 2 | 
| _userbyte3 | 40 | bool | user-defined status byte 3 | 
| _userbyte4 | 48 | bool | user-defined status byte 4 | 
| _userword1 | 24 | bool | user-defined status word 1 NOTE: You can't query the _offline.._userword1 -2. | 
| _userword2 | 40 | bool | user-defined status word 2 | 
| _userbits | 24 | bool | user-defined status bits (all 32 bits) NOTE: You can't query the _offline.._userbits. | 
| _value | var | original value | 
