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