Toshiba GR200 Series - (i) RDIF operation relating to DIFL function; (i)-1 Sending local-DIFL-operation signal

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 74 -
Figure 2.7-1 Occurrences of communication failure and fault on the three-terminal line
†Note: The sub-communication channels are provided when the communication between
relays operates in the IEEE C37.94 (N=3) frame. (i.e., set Wide for scheme switch
[CH*-COM_WIDTH]). With regard to the IEEE C37.94, several bits in the frame
(N=3) are defined as auxiliary bits; users can use the auxiliary bits as the sub-
communication channels for the RDIF operation. For more information, see
Chapter Relay application: Transmission control function” and “ Communication
application (COMM_APPL) ”.
(i) RDIF operation relating to DIFL function
For the RDIF operation the user is required to send the local DIFL output-signals for the
remote terminal by the communication; the user should set the local terminal to receive the
remote DIFL output-signals.
Sending local-DIFL-operation signal
As mentioned earlier, the operation signals of the local DIFL function should be sent to the
remote DIFL functions. Figure 2.7-2 shows PLC monitoring points “DIFL-A,-B, and -C” are
provided for the sending.
DIFL#1
A
B
C
≥1
≥1
≥1
8000101C20
8100101C21
8200101C22
DIFL#2†
A
B
C
DIFL-A
DIFL-B
DIFL-C
Figure 2.7-2 Sending local DIFL operation signals for remote relays
†Note: The DIFL#2 element is only available in the dual mode (setting
Remote-1_relay at
terminal G
Communication failure
Terminal H
Terminal G
Terminal J
Local_relay
at terminal J
(Local)
Remote-2_relay at
terminal H
Fault