Signals To Channel (Db21; Signals From Channel (Db21 - Siemens SINUMERIK 840D sl Function Manual

DB11, ...
DBX7.1
Active REPOS machine function
Edge evaluation: no
Signal state 1 or Machine function REPOS is active in the mode group.
edge change
0 → 1
Signal state 0 or Machine function REPOS is not active.
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.
Further references /BA/ Operations Guide HMI (corresponding to the used software)
DB11, ...
DBX7.2 Active machine function REF
Edge evaluation: no
Signal state 1 or Machine function REF is active in the mode group.
edge change
0 → 1
Signal state 0 or Machine function REF is not active.
edge change
1 → 0
Further references /FB1/ Functions Manual Basic Functions; Reference Point Travel (R1)
2.9.3

Signals to channel (DB21, ...)

DB21, ...
DBX0.4 Activate single block
Edge evaluation: no
Signal state 1 or In AUTOMATIC and MDA modes, the operator must enable processing of each individual part
edge change program block of the part program selected in the channel by reactivating NC START.
0 → 1
Signal state 0 or No effect.
edge change
1 → 0
Special cases, •
errors, ......
•
•
Corresponds to .... DB21, ... DBX35.3 (program status interrupted)
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.9 Mode group, channel, program operation, reset response (K1)
Signal(s) updated: cyclic
Signal(s) updated: cyclic
Signal(s) updated: cyclic
In the case of active tool offset, intermediate blocks are inserted, when necessary. These blocks
must also be enabled using NC START.
In a series of G33 blocks, a single block is only operative if "dry run feed" is selected.
In the case of a decoding single block, calculation blocks are not processed in the single step.
Detailed Description
87