Wireless Channel Assignment Plan Rules

Rule WCAP1: Assign non-contiguous channels in a panel.

Follow the rules to assign non-contiguous channels in a panel:

• Do not use the same channel for several gateways inside an enclosure.

• Do not use contiguous channel for adjacent gateway inside an enclosure.

• Prefer to use non-contiguous channels inside an enclosure.

Rule WCAP2: Privilege channel not overlapped by another radio frequency signal.

Follow the rules to avoid overlapping of privilege channel by another radio frequency signal:

• Do not use the privileged channels if they are known before the design plan of wireless channel assignment plan design.

• Check the behavior of the PowerTag system during commissioning in the end user site.

Rule WCAP3: Reserve channels for future evolution.

Follow the rules to reserve the channels for future evolution::

• Two channels, if the density will be up to 1500 wireless devices in a radius of 20 meters.

• One additional dedicated channel, if any third-party radio frequency network is to be added for other wireless system.

Rule WCAP4: Define the available channels.

Follow the rules to define the available channels:

• Use all the available channels to balance the gateways and their paired wireless devices.

  Available channels = 16 - overlapped channels - reserved channels

• Use the channels uniformly.

• Priority 1: Maximize the distance between the gateway using the same channel.

• Priority 2: Maximize the distance between the gateway using channel X and adjacent channels – Channel X-1 and X+1.

Rule WCAP5: Define two wireless communication periods according to the wireless devices density.

Follow the rules to define the values of two wireless communication periods:

• Set the same wireless communication periods for all gateways of the zone.

• Up to 400 wireless devices in a radius of 20 meters, set the wireless communication periods to 30 seconds minimum.

• Up to 600 wireless devices in a radius of 20 meters, set the wireless communication periods to 60 seconds minimum.

• More than 600 wireless devices in a radius of 20 meters, contact your Schneider Electric representative.

T_{wireless comm} is the wireless communication period defined for the type of device in the gateway configuration.