5.2 Operation When Trace is Selected for Application5-55.2.4 Operation When the Battery Cover of Control Unit is OpenThe following operations are performed when the battery cover is open during the traceoperation. Operation of system relays• The logging/trace execution active flag (R9180/R9190/R9200/R9210) stays on while thebattery cover is open.• The logging operation into the logging buffer (RAM) continues even when no SD memorycard is inserted. Once the logging buffer (RAM) becomes full, the buffer overflow flag(R9184/R9194/R9204/R9214)turns on.• The logging/trace execution active flag (R9180/R9190/R9200/R9210) turns off when thecondition to stop the trace operation is met. The SD card buffer logging/file writing active flag(R9181/R91919/R9201/R9211) turns on.• Irrespective of whether writing data to an SD card is successful or not, when the condition tostop the trace operation is met and writing data to the SD card is performed, the SD cardbuffer logging/file writing active flag (R9181/R9191/R9201/R9211) turns off. File status in SD memory card• If data cannot be written into the SD memory card after the completion of trace, the datastored in the logging buffer (RAM) will be discarded.
