Function Packages
66 Unrestricted SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual
DC8-037-2.02, Edition 10.2017
3.2.4 Decentralized Archive
In case of a communication fault, occurring events can be recorded in a decentralized archive.
After elimination of the fault the superior control system can demand the archive of the re-
spective target system. By means of this function, a possible data loss will be prevented .
• Reconstruction of all process-relevant data during a communication fault
• Transmission of the archive to the control system
─ Automatic initiation by the control system
─ File transfer acc. to IEC 60870-5-101, section 7.4.11
• Data saving
─ Datapoint-specific parameter-settable
─ Number of files, memory size parameter-settable
─ Spontaneous for binary information items and integrated totals
─ Definable cycle for measured values
─ Non-volatile on flash card
• Configuration acc. to IEC 60870-5-101/104 (point-to-point, multi-point traffic, dial-up traffic,
Ethernet), also multi-hierarchical configurations possible
• Also multi-hierarchical configurations are possible
• Reading of the archive via SICAM TOOLBOX II possible
• Front-end: SICAM AK3, optionally redundant
• Supported by SICAM 230 (also third-party control system possible)
─ Update of the archive in the control system
─ Own status marking
─ Automatic subsequent billing of
− Counter differencies
− Secondary values
− Mean values and extreme values
3.2.5 Process Data Archive
Binary information states, measured values and integrated totals can be recorded in a process
data archive. This archive comprises up to 5.000.000 records over a maximal period of
3 months.
• Data saving
─ Datapoint-specific parameter-settable
─ Spontaneous for binary information items and integrated totals
─ Definable cycle for measured values
─ Non-volatile on flash card
• Reading of the archive via SICAM WEB by means of file download possible
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