Address of the relay network

This is an addressing scheme specific to relay nets.

Definition Name	Value	Remark
TOCONET_NWK_ADDR_PARENT	0x80000000	親機
TOCONET_NWK_ADDR_\ NEIGHBOUR_ABOVE	0x80000001	Network address, directly connected relay/parent unit
TOCONET_NWK_ADDR_BROADCAST	0x8000FFFF	Network address, broadcast (only specified from the parent unit)