Siemens SINUMERIK 828D Function Manual page 481

Any axis in the channel can be configured as a spindle. The number of axes per channel depends on the control
version. In order to optimize the performance utilization, the available channel and axis configurations are limited
depending on the hardware.
With SINUMERIK 840D sl, the following configurations are permissible depending on the HW/SW version:
• Up to 12 axes/spindles per channel
• Maximum of 31 axes or 20 spindles per NCU
For information about other axis configurations such as axis containers, link axes, reciprocating axes, main run,
rotary, linear, master and slave axes and the various implementations, see K2: Axis Types, Coordinate Systems,
Frames [Page 683] and S1: Spindles [Page 1253].
Mode group­specific interface signals
The exchange of mode group­specific signals to/from the mode group is transferred to DB11 in the user
interface. In this way, the mode group can be monitored and controlled from the PLC or NCK.
The following table represents all the mode group-specific interface signals.
Signals from PLC to NCK
Mode group Reset
Mode group Stop axes plus spindles
Mode group Stop
Mode change
Operating mode: JOG, MDI, AUTOM.
Single block: Type A, Type B
Machine function REF, REPOS, TEACH IN,
Signals from NCK to PLC
Mode strobe: JOG, MDI, AUTOMATIC
Machine function strobe: REF, REPOS, TEACH IN
All channels (1 to 10, max.) in Reset state
Mode group Ready
Active mode: JOG, MDI, AUTOMATIC
Digitizing
Active machine function: REF, REPOS, TEACH IN
var. INC, 10000 INC ......... 1 INC
Change in mode group
A configuration change of a mode group with respect to its assigned channels requires a subsequent POWER
ON.
The change is made using machine data:
MD10010 $MN_ASSIGN_CHAN_TO_MODE_GROUP.
Mode group numbers must be assigned contiguously starting with 1.
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
K1: Mode group, channel, program operation, reset response
9.2 Mode group (MG)
481