3.17.10
Local/remote control function block CONTROL
3.17.10.1
Function block
Figure 102: Function block
3.17.10.2
Functionality
Local/Remote control is by default realized through the R/L button on the front
panel. The control via binary input can be enabled by setting the value of the
LR control setting to "Binary input". The binary input control requires that the
CONTROL function is instantiated in the product configuration.
Local/Remote control supports multilevel access for control operations in
substations according to the IEC 61850 standard. Multilevel control access with
separate station control access level is not supported by other protocols than IEC
61850.
The actual Local/Remote control state is evaluated by the priority scheme on the
function block inputs. If more than one input is active, the input with the highest
priority is selected.
The actual state is reflected on the CONTROL function outputs. Only one output is
active at a time.
Table 178: Truth table for CONTROL
Input
Output
CTRL_OFF
CTRL_LOC
CTRL_STA
1
CTRL_REM
TRUE
any
any
any
OFF = TRUE
FALSE
TRUE
any
any
LOCAL = TRUE
FALSE
FALSE
TRUE
any
STATION = TRUE
FALSE
FALSE
FALSE
TRUE
REMOTE = TRUE
FALSE
FALSE
FALSE
FALSE
OFF = TRUE
The station authority check based on the IEC 61850 command originator category
in control command can be enabled by setting the value of the
Station authority
setting to "Station, Remote" (The command originator validation is performed only
if the
LR control setting is set to "Binary input"). The station authority check is not
in use by default.
1
If station authority is not in use, the
CTRL_STA
input is interpreted as
CTRL_REM
.
Basic functions
1MRS757644 H
182
620 series
Technical Manual
