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

19.3.2

Signals to channel (DB21, ...)

Overview of signals to channel (to NCK)
DB21, ...
DBX0.3 Activate DRF
Edge evaluation: No
Signal state 1 Request to activate the DRF function.
With the DRF function, the DRF offset can be changed in the AUTOMATIC and MDI modes using a
handwheel.
Signal state 0 No request of the DRF function.
Signal irrelevant for ... JOG mode
Corresponding to ... DB21, ... DBX24.3 (DRF selected)
DB21, ...
DBX12.0-2,
DBX16.0-2, Handwheel assignment for geometry axis (1, 2, 3)
DBX20.0-2
Edge evaluation: No
Signal state <> 0 Request for activation of the appropriate geometry axis handwheel.
The interface can be interpreted either bit or binary-coded. The selection is defined using machine
data:
MD11324 $MN_HANDWH_VDI_REPRESENTATION
Bit-coded: Maximum of three handwheels
Note
At any one time, the axis can only be assigned to one handwheel. If several interface signals are set
simultaneously, then the following priority applies: "Handwheel 1" before "handwheel 2" before
"handwheel 3"
Binary-coded: Maximum of six handwheels
Signal state 0 No request for activation of a handwheel.
Corresponding to ... DB21, ... DBX40.6-7 ff (handwheel active for geometry axis)
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Number of the assigned handwheel
1
2
3
Number of the assigned handwheel
1
2
3
4
5
6
Z2: NC/PLC interface signals
19.3 Manual and Handwheel Travel (H1)
Bit 2
0
0
1
Bit 2
0
0
0
1
1
1
Bit 1 Bit 0
0 1
1 0
0 0
Bit 1 Bit 0
0 1
1 0
1 1
0 0
0 1
1 0
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