| 摘要 |
PROBLEM TO BE SOLVED: To efficiently replace an operation file in a short service stop time. SOLUTION: While a communication system equipped with a control part 21 which controls a main signal process part according to an in-use file and a secondary memory 31 which is connected to the control part 21 and holds a new file is in operation, specific taken-over data in the in-use file are copied to a specific position (1), the new file after being copied is loaded to a main memory 22 (2), and the operation of communication system is restarted with the new file which is loaded (3). Further, while the communication system is in operation, the specific taken-over data in the in-use file are copied to a free area of the secondary memory or main memory (1), the new file in the secondary memory after being copied is loaded to the main memory (2), and the new file which is loaded is executed to copy or move the copied taken-over data to a specific position in the new file (3), thereby restarting the operation of the communication system with the new file (4). |
