Panasonic KW2G User Manual page 121

6) Cells of unit that its firmware is updated correctly are white.
You can confirm with the display of Eco-POWER METER.
After upgrading, [ROMV] is displayed on the upper line and version is displayed on the lower line.
After completing download, cell of unit that its firmware is not updated, is yellow and cell of unit that
updating is failure is red.
On the display of Eco-POWER METER, [PROG] is displayed on the upper line and [ ‐ ‐ ‐ ‐ ] is
displayed on the lower line.
Check and confirm the wiring of Eco-POWER METER and so on and update again.
〔Display of Eco-POWER METER〕
〔Display of Eco-POWER METER〕
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KW2G / KW2G-H Eco-POWER METER