Siemens SINUMERIK 840D sl Function Manual page 1607

DB11
DBX5.2 Selected machine function REF
Signal state 0 or The machine function REF is not selected by HMI.
edge change
1 → 0
Additional references See Section "R1: Referencing (Page 1149)"
DB11
DBX6.0 Active mode AUTOMATIC
Data block Signal(s) from the mode group (NCK → PLC)
Edge evaluation: No
Signal state 1 or AUTOMATIC mode is active.
edge change
0 → 1
Signal state 0 or AUTOMATIC mode is not active.
edge change
1 → 0
DB11
DBX6.1 Active mode MDA
Edge evaluation:
Signal state 1 or MDA mode is active.
edge change
0 → 1
Signal state 0 or MDA mode is not active.
edge change
1 → 0
DB11
DBX6.2 Active JOG mode
Edge evaluation: No
Signal state 1 or JOG mode is active.
edge change
0 → 1
Signal state 0 or JOG mode is not active.
edge change
1 → 0
DB11
DBX6.3 Mode group ready
Edge evaluation: No
Signal state 1 or This signal is set after power on and all of the voltage have been established. The mode group is now
edge change ready and part programs can be executed and axes traversed in the individual channels.
0 → 1
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
19.6 Mode group, channel, program operation, reset response (K1)
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Z1: NC/PLC interface signals
1607