CHANGING METHOD FOR WORKING PROGRAM OF DEVICE

摘要

PURPOSE:To easily change a working program at a low cost even though a control part is covered with resin, etc., by sending the working program to the control part of a device main body from a portable transmitting device via connector nd storing the program in a RAM. CONSTITUTION:When a receiving program 25 of a device main body 21 is carried out, a timer set at a prescribed time T' starts. A transmission connector 36 is connected to a reception connector 28 within the time T' for input of a start code sent from a program transmitting device 31. Then the final address value L of a working program is received and stored temporarity at a prescribed position of a RAM 24. The initial address value of a new working program is substituted to the value D and the program data received at first is stored in the address of the D. Hereafter 1 is added to the value D for each reception of the program data and data are successively stored in the prescribed until the value D is equal to the value L. Thus it is possible to cover a control part 23 with a resin agent to prevent the leakage of the program and to change programs of plural devices with a single transmitting device.