Siemens CNC Variable

Siemens CNC Variable two special variable types

type	meaning	Value Range
AXIS	Axis name only (axis address)	All axis names that appear in the channel
FRAME	Geometry data for displacement, rotation, scaling, mirroring

3 variable types of control system

User-defined variables: variables that are user-defined names and types, for example, calculation parameters

Calculation parameters: Specialized, predefined calculation variables, given address R and subsequent numbers, predefined calculation variable types are real

System variables: Variables that are used by the control system, which can be processed in the program, i.e. read/write operations. The system variable name always starts with a "$" symbol, followed by a special noun.

Letters	meaning
$M	Machine data
$S	Setting data
$T	Tool Management Parameters
$P	Program values
$A	Actual value
$V	Service parameters
N	Nck Global
C	Channel-specific
A	Shaft-specific

path to data acquisition

NC Variable Official document

NC variable 840D link: http://pan.baidu.com/s/1boBqR4j Password: vl1g