Toshiba GR200 Series Instruction Manual page 613

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Signal acquisition timing must be adjusted in accordance with the application, in that the

acquisition should be regulated for the nature of the signal; hence, several settings are

provided in the GCNT functions. Thirty-two independent GCNT counters† are available. That

is, counters GCNT01 to GCNT32† can operate simultaneously. The values counted are stored

in the non-volatile memory so that they are not erased if the power supply to the IED is

interrupted.

For simplicity, only the GCNT01 function is discussed; the features in the remaining GCNT02–

GCNT32 functions are identical to the GCNT01 function.

Counter setting for a signal

Setting for count timing

In the GCNT01 function count timing is grouped into three, as shown in Figure 3.7-2 (a, b, and

c). When the user wishes to count the On(Closed), set On for the scheme switch [GCNT01-

CNTS]; conversely, set Off for the scheme switch when the Off(Open) is to be counted.

Additionally, OnOff is provided for counting the number of pulses. If the GCNT01 function is

not required, set NA for the scheme switch.

Setting the maximum value

The GCNT01 function is able to count to 2147483647 (=2

the value "2147483647", the count-value returns to an initial-value. If the user wishes to set a

different maximum number in place of "2147483647", the user can use the setting [GCNT01-

a. On (Closed) signals

"On" is counted on the rising edge of the pulse

b. Off (Open) signals

"Off" is counted on the falling edge of the pulse

c. OnOff (Closed-Open) signals

"OnOff" is counted in response to pulses.

Figure 3.7-2 Count types

−1). When the count-value reaches

6F2S1914 (0.49)

GRL200 (Soft 033 & 037)

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