Machine Data; Enable - Siemens SINUMERIK 840D sl Function Manual

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K9: Collision avoidance - only 840D sl

7.2 Commissioning

All system variables of the STRING data type have the following properties:

● Maximum string length: 31 characters

● No distinction is made between upper and lower case

Example: "Axis1" is identical to "AXIS1"

● Spaces and special characters are permitted

Example: "Axis1" is not identical to "Axis 1"

● Names that start with two underscores "__" are reserved for system purposes and must

not be used for user-defined names.

Leading space

Since spaces are valid and distinct characters, names that start with a space followed by two

underscores "__" can, in principle, be used for user-defined names. However, because they

can be easily mistaken for system names, this procedure is not recommended.

The individual protection areas are addressed via index_1. Index 0 → 1st protection area, index

1 → 2nd protection area, ... n → (n+1) protection area, where n =

($MN_MM_MAXNUM_3D_PROT_AREAS - 1)

All system variables of a protection area have the same index.

For system variables that define a collision pair, the protection areas of the collision pair are

addressed via index_2.

● 0 → 1. Protection area

● 1 → 2. Protection area

Machine data

The collision avoidance functions are enabled using machine data:

Function Manual, 01/2015, 6FC5397-2BP40-5BA2

Special functions

Sinumerik 828d Sinumerik 840de sl