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Siemens SINUMERIK 840D sl Function Manual page 597

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The following applies for H functions: Each programmed value is display irrespective of the
output type to the PLC.
(MD22110 $MC_AUXFU_H_TYPE_INT (type of H auxiliary function is integer)).
● For Tool selection by tool command
Display information is generated in the form T<value> or T=<string>. If an address
extension has been programmed, this is displayed as well.
If several spindles have been configured or the "Tool change via master toolholder" function
(MD20124 $MC_TOOL_MANAGEMENT_TOOLHOLDER (toolholder number)) is active,
the T number is always output with address extension.
If no address extension has been programmed, the number of the master spindle or the
master toolholder is used instead (T<spindle_number/tool_holder>= ).
● For the Spindle programming via S, M3, M4, M5, M19, M40 - M45 and M70 (or MD 20094
$MC_SPIND_RIGID_TAPPING_M_NR (M function for switching over in the controlled axis
operation)) the following regulation applies regarding the address extension:
If an address extension has been programmed, then this is also resolved.
If several spindles have been configured, then the address extension is also output.
If no address extension has been programmed, the number of the master spindle is used
(S<spindle_number>=).
● Indirect G code programming in form G[ <group> ] = <printout> is substituted by the
corresponding G code.
Original block:
N510 R1=2
N520 G[8]= R1
● Modal G codes that do not generate an executable block are collected and output with the
display block of the next executable block if permitted by the syntax (DIN block). If this is
not the case (e.g. predefined subprogram call TRANSMIT), a separate display block
containing the modified G codes is placed in front of the next executable block.
Original block:
N610 G64
N620 TRANSMIT
● A display block is always generated for part program lines in which the addresses F and
FA appear (including for MD22240 $MC_AUXFU_F_SYNC_TYPE = 3 (output time of the
F functions)).
Original block:
N630 F1000
N640 X100
● The display blocks generated for the block display are derived directly from the programmed
part program blocks. If intermediate blocks (e.g. tool radius compensation G41/G42, radius/
chamfer RNDM, RND, CHF, CHR) are generated in the course of contour preprocessing,
these are assigned the display information from the part program block on which the motion
is based.
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K1: Mode group, channel, program operation, reset response
Display block:
N520 G54
Display block:
G64
N620 TRANSMIT
Display block:
N630 F1000
N640 X100
9.14 Program control
597

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