Mitsubishi Electric Melsec Q Series User Manual page 56

6 Buffer memory
6.2.11Output period of data acquisition clock (Un \ G60, 61)
Set the output period of Data acquisition clock (Xn8).
(1) Setting procedure
(a) Set output period of data acquisition clock (Un \ G60, 61) in the buffer memory.
- Configurable range: 0 to 86400000 (ms)
* When the output period of data acquisition clock is set to 0, Data acquisition clock (Xn8) is always
OFF.
(b) Because the data update interval is 250 ms, Data acquisition clock (Xn1) runs every 250 ms.
Note that the output period of data acquisition clock is not a multiple of 250 ms, Data acquisition
clock turns ON at the time of the first data update after the elapse of the output period of data
acquisition clock.
<Example> When the output period of data acquisition clock is 800 ms:
(c) Turn Operating condition setting request (Yn9) from OFF to ON to enable the setting.
(2) Default value
It is set to 0 (ms).
Measurement data update count = 800 ms/250 ms = quotient 3 + remainder 50 ms
Thus, the input device (Xn8) turns ON once in every four times the measurement data
is updated.
As a result, it is same as the case where the output period of data acquisition clock is
1000 ms.
6 – 14
QE81WH