Programming Cycles Externally; Technology Cycles; Introduction - Siemens SINUMERIK 840D sl Programming Manual

Work preparation

3.25 Programming cycles externally

3.25 Programming cycles externally
3.25.1

Technology cycles

3.25.1.1

Introduction

Contents
This section contains a description of the cycles for the turning, milling, and grinding
technologies.
Structure
The description of a cycle is structured as follows:
● Syntax
Cycle name and call sequence of the transfer parameters
● Parameters
Tables to explain the individual parameters
Parameter description
The following data is specified in the table for a parameter: Name, description, value range, and
dependencies on other parameters.
The column for reference to the parameter in the screen form is provided to more easily locate
values programmed on the control when externally generated cycle calls are recompiled.
"For interface only" parameters
Certain parameters are marked "for interface only" in the table. These are not relevant to
operation of the cycle. They are only needed in order to be able to recompile cycle calls
completely. If they are not programmed the cycle can still be recompiled; the fields are then
identified by color and must be completed in the mask.
"Reserved" parameters
Parameters that are described as "reserved" must be programmed with the value 0 or a comma
so that the assignment of the following call parameters matches the internal cycle parameters.
Exception: string parameters with the value "" or a comma.
Repeating cycles on a position pattern
Drilling and milling cycles can be repeated on the position pattern (modal calls). In such
cases MCALL should be written in the same line before the cycle, e.g. MCALL CYCLE83(...).
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Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming