Siemens SINUMERIK 840D sl Function Manual page 1110

NC/PLC Interface Signals (Z2)
Rotary axes
19.13 Rotary axes
19.13.1 Signals to axis/spindle (DB31, ...)
DB31, ...
DBX12.4 Traversing range limitation for modulo rotary axes
Edge evaluation: No
Signal state 1 or Activate traversing range limitation for modulo rotary axes
edge change 0 → 1 (software end switches, work field limitations).
Signal state 0 or Deactivate traversing range limitation for modulo rotary axes.
edge change 1 → 0
Signal irrelevant for Linear axes/rotary axes without modulo functionality.
...
Application Built-on rotary axis with monitoring
example(s)
19.13.2 Signals from axis/spindle (DB31, ...)
DB31, ...
DBX74.4 Monitoring status with modulo rotary axes
Edge evaluation: No
Signal state 1 or Traversing range limitation for modulo rotary axes active
edge change 0 → 1 (software end switches, work field limitations).
Signal state 0 or Traversing range limitation for modulo rotary axes not active.
edge change 1 → 0
Signal irrelevant for Linear axes/rotary axes without modulo functionality.
...
Application Built-on rotary axis with monitoring
example(s)
1110
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions