Siemens SINUMERIK 840D sl Function Manual page 1799

Detailed Description
2.1 Tool
2.1.1 General
Select tool
A tool is selected in the program with the T function.
Whether the new tool will be loaded immediately by means of the T function depends on the
setting in the machine data:
$MC_TOOL_CHANGE_MODE (new tool compensation with M function) determines whether
the new tool is loaded immediately on execution of the T function.
Change tool immediately
MD22550 $MC_TOOL_CHANGE_MODE = 0 (new tool compensation with M function).
The new tool is changed immediately with the T function.
This setting is used mainly for turning machines with tool revolver.
Change tool with M06
MD22550 $MC_TOOL_CHANGE_MODE = 1 (new tool compensation with M function).
The new tool is prepared for changing with the T function.
This setting is used mainly on milling machines with a tool magazine, in order to bring the
new tool into the tool change position without interrupting the machining process.
The old tool is removed from the spindle and the new tool is loaded into the spindle with the
entered M function in the machine data:
MD22560 $MC_TOOL_CHANGE_M_CODE (M function for tool change)
This tool change must be programmed with the M function M06, in accordance with DIN
66025.
Basic logic functions: Tool Offset (W1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
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