XGB RTC Option Board Manual
9 - 4
(c) Modification of clock data by program
Write clock data to temporary device (P, M, K, L, Z, U, D, R) and turn on/off input contact point
M0100. ( If date and day data is not matched, Write is not available.)
Monitor and check the above special area (F053~F056)
(d) How to express the day
(2) Deviation of clock data
±2. 2s / 1 d (normal temperature)
Max deviation (second/day)
1) Initially, RTC may not have any clock data.
2) When using the product, first make sure to set the accurate clock data.
3) If any data out of the clock data range is written into RTC, it does not work properly.
i.e.) 14M 32D 25H
4) RTC may stop or have an error due to abnormal battery and other causes. The error is released if a
new clock data is written.
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