Glossary
Glossary-18 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Synchronized actions
1. Auxiliary function output
During workpiece machining, technological functions (→ auxiliary functions) can be output
from the CNC program to the PLC. For example, these auxiliary functions are used to
control additional equipment for the machine tool, such as quills, grabbers, clamping
chucks, etc.
2. Fast auxiliary function output
For time-critical switching functions, the acknowledgement times for the → auxiliary
functions can be minimized and unnecessary hold points in the machining process can
be avoided.
Synchronized axes
Synchronized axes take the same time to traverse as geometry axes take for their path.
Synchronized axis
A synchronized axis is the → gantry axis whose set position is continuously derived from the
motion of the → leading axis and is, thus, moved synchronously with the leading axis. The
synchronous axis is "not available" from the perspective of the operator and the programmer.
System memory
The system memory is a memory in the CPU in which the following data are stored:
• Data required by the operating system
• The operands times, counters, markers
System variable
A variable that exists without any input from the programmer of a → part program. It is
defined by a data type and variable name preceded by the character $. See → User-defined
variable.
Text editor
See → Editor
TOA area
The TOA area includes all tool and magazine data. By default, this area coincides with the
→ channel area with regard to the reach of the data. However, machine data can be used to
specify that multiple channels share one → TOA unit so that common tool management data
are then available to these channels.
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