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†Note: For more information, see
Chapter Relay application: Communication application
.
For applying N=3 frame, set Wide for scheme switch [CH*_COM_WIDTH].
Reception of remote-DIFGL-operation signal
Figure 2.7-8 shows the RDIF reception logic for the DIFLG function: PLC connection point
“R1.DIFGL_OP” is provided for the signal reception from the Remote-1_relay, another PLC
connection point “R2.DIFGL_OP” is provided for the Remote-2_relay. The receipt signals of
both remote-relays are ORed; then they are ANDed with the local DIFGL operation signal
when the user set On for scheme switch [DIFGL-RDIF-EN]. Finally, the RDIF function begins
to issue a trip signal. The SCOM4-SA1 in the sub-communication channel is applied.
R1 channel being in sound
R2 channel being in sound
Figure 2.7-8 Reception of remote operation signal in RDIF