Ncu-Global Basic Frames $P_Ncbfr[<N>] - Siemens SINUMERIK 840D sl Function Manual

K2: Axis Types, Coordinate Systems, Frames
10.5 Frames
10.5.5.5 NCU-global basic frames $P_NCBFR[<n>]
Machine data
Number of NCU-global basic frames
The number of NCU-global basic frames is set with the following machine data:
MD18602 $MN_MM_NUM_GLOBAL_BASE_FRAMES = <number>
System variable index n = 0, 1, 2, ... <number> - 1
System variables
$P_NCBFR[<n>] (NCU-global basic frames of the data management)
System variable $P_NCBFR[<n>] can be used to read and write the NCU-global basic frames
of the data management. The new values are not immediately active in the channel when
writing an NCU-global basic frame. The activation in the channel only takes effect with the
programming of the appropriate command G500, G54...G599.
The NCU-global basic frames in the data management are also stored during a data backup.
$P_NCBFRAME[<n>] (current NCU-global basic frames)
System variable $P_NCBFRAME[<n>] can be used to read and write the active NCU-global
basic frames. When writing an active NCU-global basic frame, the new values take effect
immediately through the recalculation of the active complete basic frame $P_ACTBFRAME.
If the changed NCU-global basic frame is to be active in all channels of the NCU starting from
one channel, the NCU-global basic frame active in the channel and the NCU-global frame in
the data management must be written together:
$P_NCBFR[<n>] = $P_NCBFRAME = <new value>
● $P_NCBFR[<n>] (NCU-global basic frame of the data management)
● $P_NCBFRAME (NCU-global basic frame active in the channel)
For the changed NCU-global frame to take effect in another channel, it must be activated in
this channel with the appropriate command G500, G54..G599.
Programming
A channel-specific settable frame of the data management $P_UIFR[<n>] becomes the
settable frame $P_IFRAME active in the channel through the appropriate command (G54 ...
G57, G505 ... G599 and G500).
734
Command
G500
G54
G55
G56
Activation of the NCU-global and channel-specific
basic frames of the data management
$P_CHBFR[ 0 ] : $P_NCBFR[0]
$P_CHBFR[ 1 ] : $P_NCBFR[1]
$P_CHBFR[ 2 ] : $P_NCBFR[2]
$P_CHBFR[ 3 ] : $P_NCBFR[3]
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions