Siemens SIPROTEC 5 Manual page 201

The communication protocols IEC 60870-5-103, IEC 60870-5-104, IEC 61850, DNP or Modbus TCP can be used
for switching the settings groups via a communication connection.
In order to use a CFC chart for switching, you must create a new CFC chart in DIGSI 5. Create the CFC chart in
the DIGSI 5 project tree under Name of the device → Charts → Add new chart. Link the signals that control
settings group switching in the CFC chart.
NOTE
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The device starts in this mode after a DCF upload (offline mode), using the active settings group 1. The
device is informed about a settings group change via the substation automation technology only. As long
as the substation automation technology command is pending, protection runs using the settings from
active settings group 1.
If the Control mode is changed in online mode (settings changes via DIGSI 5 or the on-site operation
panel), the device continues to run with the last active settings group. If a substation automation tech-
nology command for a settings group change is sent or the mode for settings group switching is changed,
this state ends. In the case of a device warm start, the device starts in the mode of the most recently active
settings group.
SIPROTEC 5, Operation, Manual
C53000-G5040-C003-C, Edition 08.2020
Operation in the Operating State
8.8 Change Device Settings
201