Siemens SINUMERIK 840D sl Function Manual page 1804

Detailed Description
2.1 Tool
Effect on the D number
A compensation data set is determined by the D number.
The D address cannot be programmed with an address extension.
The evaluation of the D address always refers to the currently active tool.
The programmed D address refers to the active tool in relation to the master spindle (same
as for tool management function), when machine data is set:
MD20096 $MC_T_M_ADDRESS_EXT_IS_SPINO = TRUE (spindle number as address
extension).
Effect on the T number
If the "Tool management" function is active, the values programmed with reference to the
master spindle (or master toolholder) are displayed as programmed/active T numbers.
If tool management is not active, all programmed T values are displayed as
programmed/active, regardless of the programmed address extension.
Only the T value programmed in relation to the master spindle is shown as
programmed/active, when:
MD20096 $MC_T_M_ADDRESS_EXT_IS_SPINO = TRUE (spindle number as address
extension).
Example
The example below shows the effect of MD20096.
Two spindles are considered. Spindle 1 is the master spindle. M6 was defined as the tool
change signal.
T1 = 5
M1 = 6
T2 = 50
M2 = 6
D4
• If tool management is active, D4 refers to tool "5".
• D4 relates to tool "50" without active tool management and with the machine data:
16
T2=50 defines the tool for the secondary spindle, whose tool does not influence the path
compensation. The path is determined exclusively by the tool programmed for the master
spindle.
MD20096 $MC_T_M_ADDRESS_EXT_IS_SPINO = FALSE (significance of address
extension on T, M tool change).
The address extensions of neither T nor M are evaluated in the NCK.
Each tool change command defines a new path compensation.
Basic logic functions: Tool Offset (W1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0