Preconditions For Transmit - Siemens SINUMERIK 840D sl Function Manual

7.2.1

Preconditions for TRANSMIT

Axis configuration
Before movements can be programmed in the Cartesian coordinate system (according to
Fig. X, Y, Z), the control system must be notified of the relationship between this coordinate
system and the real machine axes (CM, XM, ZM, ASM):
● Assignment of names to geometry axes
● Assignment of geometry axes to channel axes
● Assignment of channel axes to machine axis numbers
● Identification of spindles
● Allocation of machine axis names
With the exception of the "TRANSMIT active" point, the procedure is the same as for the
normal axis configuration. If you already know the general steps, you need only read step
"Assignment of geometry axes to channel axes" from the list of steps below.
References:
/FB1/ Function Manual Basic Functions; "Coordinate Systems, Axis Types, Axis
Configurations, Workpiece-related Actual-Value System, External Zero Offset" (K2)
Number of transformations
Up to ten transformation data blocks can be defined for each channel in the system. Machine
data names of these transformations begin with "$MC_TRAFO ..." and end with "... _n",
where n stand for a number from 1 to 10. The following sections include descriptions of
these data:
MD24100 $MC_TRAFO_TYPE_n
MD24120 $MC_TRAFO_GEOAX_ASSIGN_TAB_n
MD24110 $MC_TRAFO_AXES_IN_n.
Number of TRANSMIT structures
Two of the 10 permitted data structures for transformations in the channel may be assigned
to the TRANSMIT function. They are characterized by the fact that the value assigned with
the following machine data is 256 or 257:
MD24100 $MC_TRAFO_TYPE_n
The following machine data must be set for a maximum of 2 of these TRANSMIT
transformations:
MD24950 $MC_TRANSMIT_ROT_AX_OFFSET_t
MD24910 $MC_TRANSMIT_ROT_SIGN_IS_PLUS_t
MD24920 $MC_TRANSMIT_BASE_TOOL_t
MD24911 $MC_TRANSMIT_POLE_SIDE_FIX_t
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
– general case (TRANSMIT not active)
– TRANSMIT active
M1: Kinematic transformation
7.2 TRANSMIT (option)
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