| 摘要 |
<p>PURPOSE:To reduce a memory capacity, by separating the accumulation periods of a trace data accumulation means which accumulates the data of past several periods to two or more periods at every signal of plural control signals. CONSTITUTION:Plural control signals from an elevator controller 25 are stored in a present time data storage means 26, and data are traced at every computing period of periods T1 and T2, respectively and are stored in the trace data accumulation means 27 and 28 at one bit per period. And the data in the means 27 and 28 are outputted to a printer via a trace data output means 29, and different periods T1 and T2 are set.</p> |
