Operation When Logging Is Selected For Application; Operation When Logging Operation Starts; Operation When Logging Operation Stops; Operation When Power Supply Turns Off - Panasonic FP7 User Manual

Cpu unit programmable controller

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Logging Operation

4.2 Operation When Logging is Selected for Application

The following operations are executed when the start operation is requested.

 Registered data is confirmed.

 Once the logging/trace becomes executable, the logging/trace active flags (SR100, SR110,

SR122 ...) turn on. When the logging trigger condition is met under this condition, the

logging/trace operation starts.

 All other flags than the logging/trace active flag for LOG n are cleared during the start

request operation.

 Once writing data into an SD memory card becomes enabled after the logging/trace active

flags (SR100, SR110, SR122 ...) turned on, the SD card logging active flags (SR101, SR111,

SR112 ...) turn on.

 When an SD memory card that can be normally read and written is not inserted, or the card

cover is open, an operation error occurs.

 Operation when switching from RUN mode to PROG. mode

 All logging operations stop.

 All information saved in the buffer memory of the CPU unit is written into a file, and the file is

determined.

 Operation when power supply turns off

 When activating logging/trace, the power off flag during file access SR3F turns on..

 The data stored in the logging buffer of the CPU unit is discarded.

NOTE



In case of the middle of file writing, written data or files may be damaged, or

the SD memory itself may not be read.

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