What Is A Group - Universal Devices ISY-994i User Manual

7.6.2 What Is A Group?

Figure 110: Device/Group/Scene Chart
In INSTEON terminology, a group is a unidirectional link between a single controller device,
and one or more responder devices. All INSTEON devices employ bidirectional
communication, and all are theoretically capable of acting as either a controller or a
responder. In practice, a few types of devices (InlineLincs, most plug-in modules such as
LampLincs and ApplianceLincs) do not act as controllers since they either have no local
control, or do not send notifications when controlled locally. Similarly, a few devices such
as ControLincs and RemoteLincs, do not act as responders, but only as controllers. Finally,
some devices (SignaLinc, Access Point) are neither controllers nor responders, and do not
participate in groups.
Many devices such as Icon, SwitchLinc, and ToggleLinc dimmers and relays, are able to act
as a controller of only one group. KeypadLincs may be controllers of as many as five or
eight groups, depending on whether configured for six-button or eight-button operation [in
six-button mode, the top and bottom buttons act as On and Off buttons respectively for the
local load, while the remaining four buttons toggle between On and Off]. ControLincs may
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