FBs-W2C User Manual
13
Chapter5.
Firmware Upgrade (OTA)
OTA is a function to update the W2C firmware through the cloud. W2C will
check the version information in the "w2c_info" file on the cloud to determine
whether it needs to be updated. If a new version is found, the PLC
corresponding register will be set to 1, means users can update new firmware
for the W2C.
W2C will check the latest version on the cloud when it connects to AP and every
morning 00:01.
When the user wants to update the firmware, W2C will check whether the
cloud has a new version. If there is, the W2C will immediately update the
firmware of the OTA. If it is not found, it will go to the cloud to check the version
information again. The result will be checked. Decide whether to allow updates.
When updating the firmware, LINK LED will flash three times per second then
off one second, PLC register configuration description as Table 10.
Table 10: OTA Register Configuration Description
PLC register
Description
R905
Result for the version check of W2C
0: No newer version
1: Can update to newer version
R906
After setting value > 0, W2C will decide whether the update
is needed.
