Supplementary Conditions; General Constraints - Siemens SINUMERIK 840D sl Function Manual

H2: Auxiliary function outputs to PLC

8.16 Supplementary conditions

8.16 Supplementary conditions
8.16.1

General constraints

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.
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)
● If no address extension is programmed, the auxiliary function refers to the master spindle
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
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
PLC.
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Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions