- 960 -
Output signal to BO
The TPOS01 function can issue a “Result” signal at output point “TPOS01_SLD_CSCN”.
(iii) Operate condition for the counter
Figure 4.9-49 illustrates the operate condition logic. The TPOS01 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 TPOS01 function using connection point “TPOS01IN_TMP_41” (see Table
4.9-25).
Control hierarchy (e.g. 43RL) (PLC connection point)
TPOS01 function (Function ID: 513001)
Detection of serious errors
Double Command Blocking detected*2
Other devices traveling detected*3
Unmatched condition detected *4
Figure 4.9-49 Operate condition logic for changing the counter in TPOS01
*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 (SOFTSW). The IEC 61850 standard defines the “Command
Blocking” function as “CmdBlk”. For more information on “CBK”, see Chapter
Control and monitoring application: Software switch control function
. See the
signal “CBK_STATE” of Table 4.9-6.
*2
Note: “Double Command Blocking (DCB)” is an operation philosophy. It can be used
to protect the substation. The user can program it using GR-TIEMS.
*3
Note: If the event “device-travelling is detected, 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 detecting signal is
denoted as “Traveling OR” in Table 4.9-6.
*4
Note: The criteria “unmatched conditions” is determined when “Test-bit status” in a
command is not identical to “IED test status”.
(iv) Signal names and number
Table 4.9-23 Results of changing counter
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