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11. Setting the time and date
During commissioning, the internal time and date of the unit should be set to
the current values. There are a few differences according to the unit
configuration.
Standalone unit: The internal time of the unit has to be set to the current
value. To do it, select the service menu and then the MC time submenu with
the navigation buttons.
A051351
Fig. 11.-1 Setting the time
The time is edited by using UP , DOWN and then ENTER to
confirm. The complete date and time must be inserted: year, month, day, hour,
minutes and seconds.
Unit connected to a master clock: When the unit is connected to a master
clock (typically a clock which receives its signal from a GPS), only the year
can be set. The remaining part of the date and time is received from the
master clock.
Unit connected to a SCADA system: Usually, the SCADA transmits to the
unit the date and time according to the used protocol services. There are some
differences depending upon the used protocol. IEC 60870-5-103 protocol:
The IEC 60870-5-103 module is the time master. Setting the time and date
from the HMI is inhibited. LON LAG 1.4 protocol: The LON module is the
time master. Setting the time and date from the HMI is inhibited. SPA bus and
Modbus protocols: usually, the SCADA sets the date and time, nevertheless
setting the time and date from the HMI is allowed.
1MRS755869
Multifunction Protection and Switchgear Control
Unit
Operator's manual
REF542plus
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