Siemens SINUMERIK 840D sl Function Manual page 105

B3: Several operator panels connected to several NCUs, distributed systems - only 840D sl
Application guideline
Whereas the NCU/NCUs with a standard interpolation cycle operate(s) axes and spindles
with standard requirements with respect to dynamic performance and accuracy, the
NCU/NCUs with a faster interpolation cycle operate(s) one or a small number of axes with
higher requirements with respect to dynamic performance and accuracy.
Examples:
Eccentric turning (cams, pistons, etc.)
● C and Z axes: standard requirements
● X axis: high requirements with respect to dynamic performance and accuracy
Figure 2-11 NCU link with different interpolation cycles
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
2.1 Brief description
105