Restrictions; Program Runtime / Part Counter - Siemens SINUMERIK 840D sl Function Manual

K1: Mode group, channel, program operation, reset response

9.18 Program runtime / part counter

9.17.5

Restrictions

● Function replacements are not permitted in:
– Synchronized actions
– Technology cycles
● There must be no blockwise synchronized actions in front of a block that contains functions
at the beginning to be replaced. See the paragraph below "Example for: Non-modal
synchronized actions".
● Only the actions required for the respective replacements can be performed in the
replacement subprogram.
● In a block, in which the replacement subprogram is called at the block end, the following
should be observed:
– No modal subprogram call should be active
– No subprogram return jump should be programmed
– No program end should be programmed
Example of: Non-modal synchronized actions
MD30465 $MA_AXIS_LANG_SUB_MASK, bit 0 = 1 (gear stage change)
Program code
...
N1000 WHENEVER $AA_IM[X2] <= $AA_IM[X1] + 0.5 DO $AA_OVR[X1]=0
N1010 G1 X100 M43
...
If, in block N1010, the function M43 initiates that a replacement subprogram is called,
machining is interrupted and an alarm is output.
9.18 Program runtime / part counter
Information on the program runtime and workpiece counter are provided to support the
machine tool operator.
This information can be processed as system variables in the NC and/or PLC program. This
information is also available to be displayed on the operator interface.
640
Note
The controller does not monitor whether the function to be replaced has been realized
in the replacement subprogram.
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions