DATA LOGGER

PURPOSE:To make a contribution to troubleshooting at an accident, by receiving alarm data, storing this data and time data such as date and time to a memory and decoding the content of memory by a separate decoder. CONSTITUTION:A fire signal receiver 10 operates a fire display means 14 according to a fire signal received from a fire sensor 12 and transmits accident information and recording information preselected to a data logger controller 16. The controller 16 stores the transmitted information to an address designated at an address counter 24 of a memory 22 of a data logger 18 via a multiplexer MX34 with the control of an information processing circuit 32. Then, the data and time for the occasion are extracted from a calendar clock mechanism with the command of an address write/read control 36 and the time data is stored in a data memory 22 via the MX34. The logger 18 is provided with a backup battery 28 against a power failure. The accident information and the time data stored in the memory 22 are decoded at the separate data logger decoder 20.