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In Figure 2.36-7, the slave IED_H sends a timing reference signal at point (1). The master
IED_G receives this signal at point (2). You can find that the master IED_G replies this signal
at point (3). Finally, at point (4), this signal reverts to the slave IED_H again. When the δ is
placed in Figure 2.36-7, the following equation is obtained with the T
d1
, the T
d2
, and the T
M
:
The δ is delivered with the T and the T
M
as follows:
Substituting Equation (2.36-5) and Equation (2.36-3) for Equation (2.36-4) yields
The T
d1
calculated is distributed into the T and the T
M
, as can be seen from Figure
2.36-7. The mantissa is truncated and the quotient is expressed as an integer. If the integer is
set to “P”, the reception at the slave IED_H of the signal sent from the master IED_G occurs
at P sampling intervals from the transmission. Accordingly, by performing control so that the
sampling address of the slave IED_H equals integer P when the sampling address is 0 signal
is received from the master IED_G, the sampling address of the slave IED_H can be made the
same as the master IED_G.
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