Auxiliary Function Outputs To Plc (H2); Brief Description - Siemens SINUMERIK 802D sl Function Manual

Auxiliary Function Outputs to PLC (H2)

9.1

Brief description

Auxiliary functions
For the purpose of workpiece machining operations, it is possible to program process-related
functions (feedrate, spindle speed, gear stages) and functions for controlling additional
devices on the machine tool (sleeve forward, gripper open, clamp chuck) in the part program
in addition to axis positions and interpolation methods. This is performed with the "auxiliary
functions" as collective term for various types.
The following types of auxiliary function are available:
● Miscellaneous function M
● Spindle function (S)
● Auxiliary function (H)
● Tool number T
● Tool offset D
● Feed F (for SINUMERIK 802D there is no output from F to PLC)
Output of auxiliary functions to PLC
The auxiliary function output sends information to the PLC indicating, for example, when the
NC program needs the PLC to perform specific switching operations on the machine tool.
The auxiliary functions are output, together with their parameters, to the PLC.
The values and signals must be processed by the PLC user program. The following section
describes the various methods of configuring and programming auxiliary functions as well as
their operating principles.
Auxiliary function groups
Auxiliary functions can be combined to form groups.
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
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