Toshiba GR200 Series Instruction Manual page 534

Line differential protection ied

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Wide (N=3) communication

Figure 2.37-3 shows the Wide frames in the IEEE C37.94 standard as N=3†. When Wide is

applied, sub-communication channels are provided at bits: COM1(2bits), COM2(2bits),

COM3(2bits), COM4(2bits), and COM6(6bits). The use of the sub-communication channels are

not restricted, hence the user can use them for sending user-wishing data.

a. IE E E C37.94 frame

COM2 (1 – 8)

COM2 (9 – 16)

Figure 2.37-3 Sub communication channels at N=1,2, and 3† in C37.94 for 1CB

†Note: Set Wide for scheme switch [CH*_COM_WIDTH]. For more information, see

‡Note: Three bits in the COM2 (1–3) are pre-assigned for sending signals "CBDS-A, -B,-

COM3 (1 – 8)

COM3 (9 – 16)

Relay application: Transmission control

COM4 (1 – 8)

6F2S1914 (0.49)

COM4 (9 – 16)

GRL200 (Soft 033 & 037)

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