Command:1

GET

1  cmd type
2  cmd id // set by server
1  parameters count // max 256
 parameters:N
4  address

If count == 0 device should send in response all parameters (TODO depend on user level (?))

response to GET

1  cmd type
2  cmd id // set by server
1  parameters count // max 256

parameter*

 4  address
 1  parameter type
 [wl] values count; if this > 1 then pt < 0 and this byte presents in the packet
 v* value; see details into parameter type