Abstract: A pulse input device has a standard time generator for outputting standard time information by counting a system clock signal; an input circuit for sampling input signal information from a plurality of channels in synchronization with the standard time information at a predetermined period; a memory for storing the input signal information sampled by the input circuit; a command memory for storing a plurality of instruction commands; and a controller for scanning the instruction commands stored in the command memory to successively execute the instruction commands, for repeating the scanning operation of the instruction commands, and for controlling operations of the device.