DATA TRANSFER SYSTEM
PURPOSE:To transmit a data even when a communication line is unstable by restoring a succeeding block to the alternate supervisory system so as to transfer data when a return signal is not returned and transferring data while repeating a prescribed step. CONSTITUTION:When a return signal ACK of the...
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| Sprache: | eng |
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| Zusammenfassung: | PURPOSE:To transmit a data even when a communication line is unstable by restoring a succeeding block to the alternate supervisory system so as to transfer data when a return signal is not returned and transferring data while repeating a prescribed step. CONSTITUTION:When a return signal ACK of the 1st block is received at a prescribed time, the data is transmitted by the 3-block simultaneous supervisory system from the data of the next 2nd block is transmitted. If the return signal ACK is not received at a prescribed time, the simultaneous supervisory system of the 1st one block, that is, the alternate supervisory system is used again. |
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