PLM Addresses 256 Groups
Computer Groups/Scenes
The Powerline Modem (PLM) provides a Computer Control Interface to the network.
The PLM Commands 256 Groups.
Each Group/Scene controls all responder devices belonging to the group.

Group commands do not send on level or ramp rate.
On level and ramp rate is set in the responder device as part of link information.
Each responder device stores link information for each link to a controller.

LinkNet software uses the PLM Hardware Interface for setup and control for an Insteon Network using the software commands Insteon Devices support.
Software setup provides a more complete and easier method of configuring and linking each Insteon Device.
Software control uses Timer and Logic Events as automation, and manual (at the computer) control for On Off etc. with Groups and individual Devices.
Controlled Groups/Scenes
Computer/Software Control Timers and Logic functions provide automated control, and require the computer ON and running LinkNet software connected to the PowerLinc Modem (PLM).
Insteon Controller Device (everything except PLM
Controllers such as KeypadLinc, RemoteLinc, Motion Sensor etc., send group commands. It is up to each Insteon responder device to know how to respond. On level and ramp rate is set in the responder device as part of link information. Each responder device stores link information for each link to a controller.
This type of control does not require computer control to work, once configured.
did you know
The PLM Insteon Network
The Powerline Modem (PLM) can hold 1023+ links.
For Computer Control, The PLM contains a link for each Insteon Device.
Each Insteon PLM link contains the Device ID, Group #, and a "is it a Controller or Responder" Flag
Each Insteon Device contains a link back to the PLM that contains the PLM ID, Group #, and a "is it a Controller or Responder" Flag
Most links are the Device is Responder, the PLM is Controller.

PLM Groups/Scenes
A link stored in the PLM contains a Group #. (PLM stores Group Numbers, you can assign a group a Text Label, call that a Scene)
One or more Insteon Devices can be linked to a Group #.
Computer control can send Group Commands. Each group member responds to the group command.
Group commands provide control for all group members with a single command.
Dimmer devices store their On Level and Ramp Rate in the Group Link the Device contains for that group.
Dimmer On Level and Ramp Rate is pre set. LinkNet Software makes this easy.

Insteon Devices can belong to more than one group.
Any number of groups. Each group link contains Link Information for the group.
Each Responder Device stores Link Information (on level, ramp rate) unique for each group link.

Controller Groups, KeypadLinc etc.
Work the same way.
Insteon Devices link to a Controller Button #.

It's that simple. It can get hard to keep track of with several+ devices to control.
LinkNet Software is good for showing the overal picture, along with setup and control.
Computer GROUPS/SCENES Setup And Control
Computer Groups - Move To Group
1- Right Click Device ID - Right Click on a device ID from the Tree Control.
Choose "Computer Groups Setup Menu".
Edit Device Group/Scene Settings Menu
The Power Line Modem (PLM) can store links to Insteon devices in 256 groups numbered 0 through 255.
LinkNet software combined with the PLM provides Setup and Control over the Insteon Device Network.
Each Inseton device joins a group by storing a link to a PLM Group/Scene.
The PLM stores a link for the Device/Group.
The link information contains the group number and ID for the PLM.
Dimmer devices also store their default ON LEVEL and RAMP RATE in the link information.
Computer Groups/Scenes with LinkNet Software
Computer Groups Settings

Member Setting Onlevel
Insteon groups provide a means of having 1 or more Insteon devices follow a single command.
An Insteon command is sent to a group, as opposed to each Insteon device ID.
A Computer GROUP/SCENE is created by linking Insteon Device(s) to a Power Line Modem (PLM) group number.
Group commands are sent to a group.
All devices containing a link to the PLM Group will respond.

Save Group Member Setting
Each Insteon responder device stores a default ON LEVEL and RAMP RATE for the group.
LinkNet software provides for setting on levels and ramp rates for device groups.
Discovery Group 251. Area 251 is where all newly discovered devices are initially placed
Device discovery occurs mostly with a new install, or already used device is added to the network.
LinkNet will querry the device for type, and read any device links it contains.
If a link contains a device ID that is not recognized, it is treated as discovered.
The new discovered device ID is added to group 251 creating a new link to a responder in the PLM.
LinkNet will communicate with the device ID asking for device type, version, status, and read the Device Links it contains.
Computer groups work well with the Timer Events and Logic Events

Example: Certain outside lighting is set to come on to 50% on level 10 minutes after sunset.
The InLineLinc dimmers used for this belong to the same computer Group/Scene.
The InLineLinc dimmers are configured to turn on to 50% on level for the Group/Scene they belong to.

When motion is detected in areas where there is lighting, a Logic Event will turn the lights up to 100%, and back to 50% after motion delay (and or when the motion sensor sends a motion off command).
This is an example for building a smart house, smart yard, smart property, which adds to security.
Timer Event View
Timer Event View Configure Computer Software Controled Group/Scenes.
Timer events run computer groups and or individual devices.
Timers use time of day and Sunrise Sunset.
Sunrise Sunset times allow Pre and Post Delay parameters.
Sunrise is calculated using latitude and longitude from Options menu.
Logic Event View
Logic Event View Logic events run computer groups and or individual devices.
Logic events use "If this - then do this" logic.
Logic events use an optional delay parameter.
Logic events used with motion sensors provide alert lighting.
Logic events allow for building security features.

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