ABB REB670 Commissioning Manual page 82

Section 9
Testing IED operation
76
IEC15000021 V1 EN-US
Figure 10:
3. Use the up/down arrows on the LHMI to change the signal value or the
appropriate menu in PCM600.
The status of the signal changes automatically to Forced (i.e. there is no
need to set the status to Forced manually).
On the LHMI, these edit changes have immediate effect. This
means that the value changes directly when the up/down arrow is
pressed (i.e. there is no need to press the Enter key to effectuate the
change).
When navigating away from a LHMI forcing menu for an I/O board, the user is
prompted to either leave the signals forced, or to revert all of them back to the
unforced state.
IEC15000022 V1 EN-US
It is possible to power-cycle the IED in this state without losing the
forcing states and values. This means that once a signal is forced,
and the IED remains in IED test mode, the input or output will
Value line of the desired signal
1MRK 505 372-UEN A
Busbar protection REB670 2.2 IEC
Commissioning manual