Measurement Results - Siemens SINUMERIK 840D sl Function Manual

8.3.2

Measurement results

Read measurement results in PP
The results of the measurement commands are stored in system data of the NCK and can
be read via system variables in the part program.
● System variable $AC_MEA[No]
● System variable $AA_MM[axis]
● System variable $AA_MW[axis]
References:
/PGZ/ Programming Manual, Cycles
PLC service display
The functional test for the probe is performed using an NC program.
The measuring signal can be checked at the end of the program in the diagnostic menu
"PLC status".
Table 8-4
Probe 1 deflected
Probe 2 deflected
The current measuring status of the axis is displayed by means of the interface signal DB31,
... DBX62.3.
Bit 3=1: Measurement
active Bit 3=0: Measurement not active
This signal can be displayed for all measurement functions and also be read in synchronized
actions with
● system variable $AA_MEAACT[axis].
References:
/FBSY/ Function Manual, Synchronous Actions
Extended Functions
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Query measurement job status signal.
[No] stands for probe (1 or 2)
The variable is deleted at the beginning of a measurement. The variable is set as soon as
the probe fulfills the activation criterion (rising or falling edge). Execution of the
measurement job can thus be checked in the part program.
Access to measured value in the machine coordinate system (MCS)
Read in part program and in synchronized actions.
[Axis] stands for the name of the measurement axis (X, Y, ...).
Access to measured value in the workpiece coordinate system.
Read in part program and in synchronized actions.
[Axis] stands for the name of the measurement axis (X, Y, ...).
Status display for measurement signal
8.3 Channel-specific measuring
Status display
DB10 DB B107.0
DB10 DB B107.1
Measurement (M5)
601