Siemens SINUMERIK 840Di Function Manual page 511

Supplementary Conditions
3.1 General constraints
3.1
Spindle replacement
Because the auxiliary functions are parameterized channel-specifically, if function: "Spindle
replacement" is used, the spindle-specific auxiliary function must be parameterized
immediately in all channels that use the spindles.
Tool management
If tool management is active, the following constraints apply:
• T and M<k> functions are not output to the PLC.
• If no address extension is programmed, the auxiliary function refers to the master spindle
Maximum number of auxiliary functions per part program block
A maximum of 10 auxiliary functions may be programmed in one part program block.
DL (additive tool offset)
The following restrictions apply to the DL function:
• Only one DL function can be programmed per part program block.
• If DL functions are used in synchronous actions, parameter: "Value" is not output to the
Auxiliary Function Output to PLC (H2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Note
k is the parameterized value of the auxiliary function for the tool change (default: 6):
MD22560 $MC_TOOL_CHANGE_M_CODE (auxiliary function for tool change)
or the master tool holder of the channel.
Definition of the master spindle:
– MD20090 $MC_SPIND_DEF_MASTER_SPIND
– Part program instruction: SETMS
Definition of the master tool holder
– MD20124 $MC_TOOL_MANAGEMENT_TOOLHOLDER
– Part program instruction: SETMTH
PLC.
3
3-1