Operation When The Battery Cover Of Control Unit Is Open - Panasonic FP0H User Manual

Programmable controller control unit

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5.2.4 Operation When the Battery Cover of Control Unit is Open

The following operations are performed when the battery cover is open during the trace

operation.

 Operation of system relays

• The logging/trace execution active flag (R9180/R9190/R9200/R9210) stays on while the

battery cover is open.

• The logging operation into the logging buffer (RAM) continues even when no SD memory

card 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 the

condition 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 to

stop the trace operation is met and writing data to the SD card is performed, the SD card

buffer 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 data

stored in the logging buffer (RAM) will be discarded.

5.2 Operation When Trace is Selected for Application

5-5

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