| 摘要 |
PROBLEM TO BE SOLVED: To provide a CPU type controller capable of preventing the rewrite accident of a flash memory and the utilization device. SOLUTION: The heat source machine 10, indoor machine 20 and operation device 30 of a distributed arrangement type air conditioning device 100 respectively constitute this flash memory CPU type controller for performing control by the flash memory 72A for processings/data and a CPU 70. Communication signals and an erasure/rewrite voltage Vp2 are supplied from an external rewrite device 200 to the required one of the heat source machine 10, the indoor machine 20 and the operation device 30, a voltage switching device 85 is operated, the operation voltage of the processing/data flash memory 72A is switched to the erasure/rewrite voltage Vp2, then rewrite data are transmitted and a rewrite operation is performed. Since the erasure/rewrite voltage Vp2 is supplied from the external rewrite device 200 only at the time of the rewrite operation, erroneous rewrite by communication abnormality such as erroneous communication or the like is prevented. The need of rewrite is confirmed by confirming the version No. of storage contents, and after the rewrite, the normality/abnormality of the rewrite are discriminated by the storage address total value of the flash memory 72A. |
