Default: 0.0           Value: Phase IV address

    Phase IV node address given to the client system when it is
    downline loaded. This address is passed in a load parameters
    message; whether it is needed depends on the software being
    loaded.

    set [node node-id] mop client client-name -
        phase iv client address phaseiv-address

    Example:

    set mop client imply phase iv client name imply, -
        phase iv client address 4.906