Configures the backup-function of a node.

 The objects or parts of objects that will be included
 in the backup-function are configured by means of
 Backup objects.

 The backup of an individual object can be done fast or
 slow. The meaning of fast respectively slow is defined
 by CycleFast and CycleSlow.
 The object has to be configured direct below a $Node
 object representing a process node.

• Backup

 Specifies a string of up to 79 characters naming the
 backup file. If the file is not stored in the local
 node the node designation should be included, for
 example 1.30::PWRP_LOAD:VKVAMN.PWRBCK

 Specifies the period of the fast backup cycle in tenth
 of seconds, for example 300, i.e. 30 seconds. If
 CycleFast = 0, a default (=BCK_DEFAULT_FAST ) cycle
 period is selected. This default period is 10 seconds
 at the moment.

 Specifies the period of the slow backup cycle in tenth
 of seconds; for example 1200, i.e. 120 seconds. If
 CycleSlow = 0, a default (=BCK_DEFAULT_SLOW ) cycle
 period is selected. This default period is 60 seconds
 at the moment.

 The numbers of elapsed fast respectively slow backup
 cycles.

 The number of bytes updated during a fast respectively
 slow backup cycle.

 The number of bytes updated during a fast respectively
 slow backup cycle.

 The number of Backup objects included in the last fast
 respectively slow backup cycle.

 Time when Backup objects included in the last fast
 respectively slow backup cycle were updated.

 Time at the last writing in the backup-file with no
 regard to fast or slow backup cycles.

 Status code after the last disk operation.