Not sending 6byte RGBW value !

[admin]

You must pass a table as the value for 6-byte RGBW. Each color is in 0..255 range.

Code:

grp.write('1/7/0', {
  red = 255,
  blue = 0,
  green = 127,
  white = 127
})

Standard RGB/RGBW types use numeric values which can be specified in hexadecimal form as 0xRRGGBB or 0xRRGGBBWW respectively.