PURPOSE: To provide the multi-spot collector for analog signal for which conversion waiting is reduced, multi-spot analog signals can be read at high speed and structure is simplified. ;CONSTITUTION: The multi-spot collector for analog signal is provided with an A/D converter installed at each channel for converting an analog signal PV to a digital signal of one bit sequence, first photocoupler PC for insulating the output signal of this A/D converter, data reading part 41 for parallelly receiving one-bit signals transmitted through this first photocoupler as many as the number of relevant channels, conversion start command part 42 for outputting a conversion starting command to the A/D converter at each channel, and arithmetic processing part 43 for successively arithmetic processing one-bit signals read by this data reading part corresponding to the respective channels. Concerning this arithmetic processing part, arithmetic processing is executed by first commanding the output of the conversion starting command to the conversion start commanding part, next successively reading the data from the respective channels of the data reading part and restoring the information contained in the analog signals.;COPYRIGHT: (C)1995,JPO
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