Siemens SINUMERIK 840D Function Manual page 117

DIAM90/DIAM90A[<Axis>]
After activation of the reference-mode-dependent diameter programming with DIAM90/
DIAM90A[<Axis>], the following data is always displayed in relation to diameter regardless
of the operating mode (G90/G91):
● Actual value
● Actual values read with reference to the workpiece coordinate system (WCS):
– $AA_MW[<transverse axis>]
– $P_EP[<transverse axis>]
– $AA_IW[<transverse axis>]
DIAMCYCOF/DIACYCOFA[<Axis>]
With DIAMCYCOF / DIACYCOFA[<Axis>], a changeover to radius programming takes place
within the controller. The diameter programming status that was active before DIAMCYCOF
or DIACYCOFA[AX] continues to be displayed to the HMI.
Permanently radius-related data
For transverse axes, the following data is always entered, programmed and displayed in
relation to radius:
● Part program programming
– Interpolation parameters of circular-path programming with CIP
● Offsets:
– Tool offsets
– Programmable and configurable frames
– External work offset
– DRF and preset offset
– etc.
● Working area limitation
● Software limit switch
● Feedrate
● Display data with reference to the machine coordinate system
● Display data of the service images for axis, FSD and MSD
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
System variable of the measuring functions MEAS (measuring with delete distance-to-go)
and MEAW (measuring without delete distance-to-go)
P1: Transverse axes
4.1 Function
117