Siemens SINUMERIK Series Function Manual page 106

B3: Distributed systems - 840D sl only
2.2 NCU link
Alignment of axial machine data
For container axes, all axial machine data marked with the "CTEQ" (container equal)
attribute must have the same value for all container axes. Any different values will be aligned
automatically.
Control startup
During the control startup, all machine data will be aligned to the values of the container axis
of the first slot. If the value of a machine data item changes, the following message will be
displayed: "The axial machine data of the axes in axis container <n> has been adapted".
Activate machine data
If a machine data item of any container axis is changed, the new value also becomes
immediately available in all other container axes. The following message is displayed:
"Caution: This MD will be set for all container axes".
Slot change
If a slot of an axis container is assigned another machine axis, (MD127xx
AXCT_AXCONF_ASSIGN_TAB<x>), the following message is displayed: "The machine data
of the axes in axis container <n> will be adapted at the next startup".
Note
Container-link axes
For container-link axes, a machine data alignment is performed for all NCUs of the link group
involved on the axis container.
Parameter example
Assumptions
NCU
NCU1:
NCU2:
106
Components
Channel 1, X/Z geometry axes → 1st/2nd channel axis
Channel 2, X/Z geometry axes → 1st/2nd channel axis
Machine axes: AX1, AX2
CT1 axis container with four slots
Machine axes: AX1, AX2
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
Extended Functions