Beijer Electronics BoX2 base v2 Configuration Manual page 21

NOTE
The PLC functionality has support for storing non-volatile variables. Those
variables can be stored dynamically in two different modes:
• Power-fail mode (Default setting)
If the voltage drops below a hardware given threshold (that is, during a power
loss or power dip), the system instantly copies all persistent data defined in
the PLC application from RAM into the battery backed SRAM. They are verified
and restored when the device is restarted.
• Cyclic mode
The PLC is instructed to store all retain and persistent data directly into SRAM
synchronously with every PLC cycle. This means all device types can use the
whole available memory, which is 128 kB. However, writing to the SRAM might
increase the configured PLC cycle depending on the size of used retain and
persistent data, because a SRAM is naturally slower than a RAM. This possible
increase is dependent of the application and to find out about the possible
increase one would need to monitor the configured task(s) of the project. For
projects with large amounts of persistent data, cyclic mode is recommended.
Press Update to perform the update.
5.
NOTE
This button is disabled until communication has been established with the
device, by previously pressing the Get info button.
6. The BoX2 device will show a purple LED indication, with constant light, to indicate that the
CODESYS Runtime is updating.
7. Once finished, the device will automatically reboot.
8. Wait until the LED shows a blue status light, or purple on/off every 0.5 seconds (if no iX or
CODESYS project is installed).
The update is now completed.
NOTE
Before downloading a new CODESYS Runtime, the image should always first be
downloaded to the device again, even if there are no changes to the image. If only
the CODESYS Runtime is installed, then this may result in problems connecting to,
and communicating with, other devices.
Beijer Electronics, MAEN363
Image and CODESYS Runtime Update
21 2023-06