A method of assigning identification codes to devices, each device including a controller, a memory, and a switch, with the devices connected in a series circuit. To this end, the drop portion of the set-up pulse applied to a scan electrode group is set after a pulse applied to a sustain electrode reaches a voltage which does not cause a discharge between the sustain and scan electrodes. The present invention relates to an adhesive sheet comprising 100 parts by weight of a resin comprising 15 to 40 wt % of a high molecular weight component containing a crosslinking functional group and having a weight-average molecular weight of 100,000 or greater and a Tg of \u221250\xb0 C.