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DPOS01 function (Function ID: 512001)
User configurable condition (PLC#2 connection point)
Appearance of the
controls in the same
direction
From Control hierarchy *9 (PLC#3 connection point)
Function “Automatic sequence control” is in progress
Additional condition (PLC#1 connection point)
Double Command Blocking detected*2
Other devices traveling detected*3
Command “ON control” received
Command “OFF control” received
received
Unmatched condition detected *5
Event suppression detected *6
= DPOS01_F_QLT_SPP
BI board connection error detected*7
= DPOS01_F_BI_ERR
Figure 4.8-13 Select condition logic for ‘ON/OFF’ in DPOS01
*10
1
Note: “Command Blocking” disables any operation except its own; the “Command
Blocking” is initiated by the status “CBK” in a software switch controller
(SOTFSW). The IEC61850 standard defines “Command Blocking” 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 as “Travelling OR” in Table 4.8-6.
4
Note: If the issue 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.
5
Note: Criteria “unmatched conditions” are decided when “Test-bit status” in a command
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