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(iii) Operate condition for the counter
Figure 4.8-36 illustrates the operate condition logic. The DPOS01 function can determine an
operate-condition using a signal received from “Control-hierarchy”. The control-hierarchy
condition is provided by user-programmed PLC logic; the user must connect the control-
hierarchy with the DPOS01 function using connection point “DPOS01IN_TMP_28” (see Table
4.8-7).
DPOS01 function (Function ID: 512001)
Double Command Blocking detected*2
Other devices traveling detected*3
Unmatched condition detected *4
= DPOS01_SC_ST_ERR
Figure 4.8-36 Operate condition logic for changing the counter in DPOS01
1
Note: “Command Blocking” disables all operation except for its own; the “Command
Blocking” function is initiated by the status of “CBK” in a software switch
controller (SOTFSW). The IEC 61850 standard defines the “Command Blocking”
function as “CmdBlk”. For more information on “CBK”, see Chapter
Control and
monitoring application: Software switch controller. See the signal “
“CBK_STATE”
of Table 4.8-6.
2
Note: “Double Command Blocking” (DCB) is an operation philosophy in the common
control function (CMNCTRL). It can be used to protect the substation. The user
can program it using GR-TIEMS. The DCB operating signal is denoted as “DCB
RCV OR” in Table 4.8-6. For more information see Chapter
Control and
monitoring application
:
Common controls.
3
Note: If the event “device-travelling” is detected in the CMNCTRL function, it indicates
that another operator is changing the status of a device. Thus, the IED should
inhibit the operation of any device for the duration that the event is detected. The
detected signal is denoted by “Travelling OR” in Table 4.8-6.
4
Note: If the issuing of a trip command is executed by the IED, any control operation is
blocked until the trip operation is completed. If an IED includes a relay
application, the trip command is issues at the output point “GEN.TRIP” in Table
4.8-6.
(iv) Signal names and number
Table 4.8-23 Mapping points
DPOS01 change command received. (Mapping Data) for 3-phase counter value
DPOS02 change command received. (Mapping Data) for 3-phase counter value
DPOS03 change command received. (Mapping Data) for 3-phase counter value