Siemens SINUMERIK 840Di Function Manual page 1951

DB11, ...
DBX5.1 Selected REPOS machine function
Edge evaluation: no
Signal state 1 or Machine function REPOS is selected in the mode group by the MMC.
edge change
0 → 1
Signal state 0 or Machine function REPOS is not selected by the MMC.
edge change
1 → 0
Application When a fault occurs when executing a part program (e.g. tool breakage), the axis is manually
example(s) moved away from the fault location in the JOG mode in order to be able to replace the tool.
The axis can then be manually returned to the exact previous position using the REPOS machine
function so that the program can be continued in the automatic mode.
Additional references /BA/ Operator's Guide
DB11, ...
DBX5.2 Selected machine function REF
Edge evaluation: no
Signal state 1 or The REF machine function is selected in the mode group by the MMC.
edge change
0 → 1
Signal state 0 or Machine function REF is not selected by the MMC.
edge change
1 → 0
Additional references /FB1/ Description of Functions, Basic Machine; Reference Point Approach (R1)
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
NC/PLC Interface Signals (Z1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2.9 Mode group, channel, program operation, reset response (K1)
Signal(s) updated: cyclic
Signal(s) updated: cyclic
Signal(s) updated: cyclic
Detailed Description
2-87