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*Note: The OPTIM function can run on either “the SBO mode” or “the DIR mode” using a
signal “ctlmodel” when the communication is carried out in the IEC61850; thus,
mapping is required for the IEC61850 communication.
(ii) Output signal required to map
The OPTIM function can issue a “Select success” signal at the output point
“OPTR01_NSD_CSF”, when the OPTIM function can decide that the input signal “Select
command (Reset)” is true. If the OPTIM function decides that the “Select command (Reset)” is
not true, the OPTIM function returns to the “Wait for a command” stage.
(iii) Select condition
Figure 4.4-6 shows the select condition logic in the OPTIM function.
OPTIM function (Function ID: 529001)
Control hierarchy (e.g. 43RL) (PLC connection point) *5
IED serious error detected
Users must setup this condition correctly
Function “Automatic sequence control” is in progress
Double Command Blocking detected*2
Other devices traveling detected*3
Unmatched condition detected *4
Figure 4.4-6 Select condition logic in the OPTIM function
*6
*1
Note: The “command blocking” disables any operation except for itself: the
“command blocking” is stated with “CBK” in a software controller (SOFTSW). The
IEC61850 defines the “command blocking” as “CmdBlk”. For more information on
CBK, see Chapter
Control and monitoring application: Software switch control
function
. See the signal “CBK_STATE” of Table 4.4-2.
*2
Note: “Double Command Blocking (DCB)” is operation philosophy in the common
control function (CMNCTRL). It can be used to protect the substation. The user
should program it using the GR-TIEMS. The DCB operating signal is denoted as
“DCB RCV_OR in Table 4.4-2. For more information, see Chapter
Control and
monitoring application: Common controls
.
*3
Note: If events “device-travelling” are detected in the CMNCTRL function, we can
see that some statuses of the devices are being changed by other operators. Thus,
the IED should stop any operation while the events are being detected. The
detecting signal is denoted by “Traveling OR” in Table 4.4-2.