Siemens SINUMERIK 840D sl Function Manual page 407

Type
The name of an auxiliary function is defined via the "type".
The identifiers for user-defined auxiliary functions are:
Type
"H"
"M"
"S"
"T"
The setting is made via the following machine data:
MD22010 $MC_AUXFU_ASSIGN_TYPE[<n>] (type of user-defined auxiliary functions)
Address extension
MD22020 $MC_AUXFU_ASSIGN_EXTENSION[<n>] (address extension user-defined
auxiliary functions)
The functionality of the address extension is not defined in user-specific auxiliary functions. It
is generally used to distinguish between auxiliary functions with the same "value".
Grouping together auxiliary functions
If all the auxiliary functions of the same type and value are assigned to the same auxiliary
function group, a value of "-1" must be entered for the "address extension" parameter.
Example:
All user-specific auxiliary functions with the value "= 8" are assigned to the tenth auxiliary
function group.
MD22000 $MC_AUXFU_ASSIGN_GROUP [ 1 ]
MD22010 $MC_AUXFU_ ASSIGN_TYPE [ 1 ]
MD22020 $MC_AUXFU_ ASSIGN_EXTENSION [ 1 ]
MD22030 $MC_AUXFU_ ASSIGN_VALUE [ 1 ]
Value
MD22030 $MC_AUXFU_ASSIGN_VALUE[<n>] (value of user-defined auxiliary functions)
The functionality of the "value" parameter is not defined in user-specific auxiliary functions.
The value is generally used to activate the corresponding PLC user function.
Grouping together auxiliary functions
If all the auxiliary functions of the same type and address extension are assigned to the same
auxiliary function group, a value of "-1" must be entered for the "value" parameter.
Example:
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Identifier
Auxiliary function
Special function
Spindle function
Tool number
H2: Auxiliary function outputs to PLC
8.3 Userdefined auxiliary functions
Meaning
User-specific auxiliary functions
Extension of predefined auxiliary func‐
tions
= 10
= "H"
= -1
= 8
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