User­defined Auxiliary Functions - Siemens SINUMERIK 828D Function Manual

H2: Auxiliary function outputs to PLC
8.3 User­defined auxiliary functions
8.3 User­defined auxiliary functions
There are two uses for user-defined auxiliary functions:
• Extension of predefined auxiliary functions
• User-specific auxiliary functions
Extension of predefined auxiliary functions
Because there is only one set of machine data for the predefined auxiliary functions, they can only ever be used
to address one spindle of the channel. To address further spindles, user-defined auxiliary functions must be
parameterized to supplement the predefined auxiliary functions.
Extension of predefined auxiliary functions refers to the "address extensions" parameter. The number of the
spindle that the auxiliary function refers to is entered in the "address extension" parameter.
The relevant predefined auxiliary functions can be extended for the following system functions:
System function
Tool change
Spindle right
Spindle left
Spindle stop
Position spindle
Axis mode
Automatic gear stage
Gear stage 1
Gear stage 2
Gear stage 3
Gear stage 4
Gear stage 5
Spindle speed
Tool selection
1)
Address extension = 1 is the default value used in the auxiliary functions predefined in the machine
data
Example:
Extension of the predefined auxiliary function for the system function "spindle right" for the second and third
spindle of the channel.
Auxiliary function "spindle right" for the second spindle of the channel:
MD22010 $MC_AUXFU_ASSIGN_TYPE[ n ]
MD22020 $MC_AUXFU_ASSIGN_EXTENSION[ n ]
MD22030 $MC_AUXFU_ ASSIGN_VALUE[ n ]
422
Type
Address extension
Value
M 1 6
M 1 3
M 1 4
M 1 5
M 1 19
M 1 70
M 1 40
M 1 41
M 1 42
M 1 43
M 1 44
M 1 45
S 1 -1
T 1 -1
= "M"
= 2
= 3
1)
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions