Siemens SINUMERIK 840D sl Function Manual page 713

Behavior while the compressor is active
With active compressor and G/Code group 30 not equal to COMPOF, two display blocks are
generated. The
• first contains the G/Code of the active compressor.
• The second contains the string "..." as character for missing display blocks.
Example:
G0 X10 Y10 Z10
COMPCAD
...
To avoid bottlenecks in the NCK performance, the basic block display is deactivated
automatically. As a sign that the display blocks are missing, a display block with the string
"..." is generated.
All display blocks are always generated in the single block.
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
; Block to be preprocessed for the basic block
display
; Compressor for optimized surface quality (CAD
prog.) A
; string as character for missing display blocks
Detailed description
2.9 Program control
155