| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate rewriting of an existing program in a ROM of a control board installed in a shutter case of an electric shutter. <P>SOLUTION: A rewriting device 5 including an interface circuit which can be connected to a cable 3 connecting the control board 2 with a switch 4 arranged on an interior wall surface, an EEPROM storing a rewriting program, and an oscillation circuit sending out an oscillation signal to the control board, is formed. The switch 4 is taken out of the wall surface. The rewriting device 5 is connected to the cable 3 in place of the switch 4. The existing program of the control board 2 is rewritten based on confirmation of an oscillation signal sent by the control board 2, and then the cable 3 is connected to the switch 4 again. Since remote rewriting indoors is made possible, program rewriting for an electric shutter 1a installed even on the second or the third floor is enabled without a need for a work scaffold. <P>COPYRIGHT: (C)2011,JPO&INPIT |
