Siemens SINUMERIK 840D sl Function Manual page 513

Value
3010..3025
3050..3065
The MEASURE( ) function calculates frame $AC_MEAS_FRAME according to the specified
frame.
In the case of values
0 to 1065, the calculation is performed using the active frame.
2000 to 3065, the calculation is performed with reference to the selected frame in data
management. The frame selection in data management is not supported for measurement
types 14 and 15. A frame does not have to be active in order to select it in data management.
In this case, the calculation is performed as if the frame were active in the chain.
The measuring point is transformed in the selected system and the selected frame is
determined using the entire frame including the selected frame. Preset actual value memory
is active only after compensation and activation of the frame.
In the case of values
With active G500 active (1010..1025, 1050..1065, 3010..3025, 3050..3065), the target frame
is calculated so that G500 must be active after the frame is selected so that the setpoint position
can be calculated.
Conversion into another coordinate system
If a position is to be converted to a position in another coordinate system, the following variables
can be used to specify the composition of the desired frame chain:
Type System variable
INT $AC_MEAS_CHSFR
INT $AC_MEAS_NCBFR
INT $AC_MEAS_CHBFR
INT $AC_MEAS_UIFR
INT $AC_MEAS_PFRAME
The data management frames are read and a new frame set up for the corresponding values
in the variables.
Note
If variables are not set, the active frames are retained.
Values should only be written to those variables whose data management frames are to be
included in the new frame chain. In the case of the basic frames, only all of the frames can be
exchanged, and not just a particular frame. Active changes via $P_NCBFRMASK and
$P_CHBFRMASK are ignored.
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
8.5 Setting zeros, workpiece measuring and tool measuring
$P_CHBFR[0..15]
$P_NCBFR[0..15]
Meaning
Selection of system frames
Selection of global basic frames
Selection of channel basic frames
Selection of settable frames
Programmable frame
Meaning
Channel-spec. Basic frames with active G500 in
data management
NCU-global basic frames with active G500 in data
management
Values
Bit mask corresponding to MD28082
$MC_MM_SYSTEM_FRAME_MASK
Bit mask (0 ... FFFF)
Bit mask (0 ... FFFF)
0 ... 99
0: is included
1: is not included
M5: Measurement
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