You will need to set up appropriate
meter type codes for the meters, which will be used to define or group index and interval channels. You must turn on the
Allow Interval Registers switch for any meter type used by a meter, which will contain interval registers. Indicate the valid meter configuration types for this meter type.
If a meter type will only be used for meters linked to index channels, nothing special is required. Their behavior is similar to standard non-interval meters.