Output Of Cam Signals To Nck I/Os In Position Control Cycle - Siemens SINUMERIK 840D Function Manual

N3: Software cams, position switching signals
13.3 Output of cam signals
Minus cam signals
The status of the minus cam signals is entered into the following NC/PLC interface signals:
DB10 DBX110.0 to 113.7 (minus cam signal 1 to 32)
Plus cam signals
The status of the plus cam signals is entered into the following NC/PLC interface signals:
DB10 DBX114.0 to 117.7 (plus cam signals 1 to 32)
Note
If no measuring system has been selected or NC/PLC interface signal DB31, ... DBX2.0 (cam
activation) is set to 0, then the following NC/PLC interface signals are also set to 0:
● DB10 DBX110.0-113.7 (minus cam signals 1-32)
● DB10 DBX114.0-117.7 (plus cam signals 1-32)
● DB31, ... DBX62.0 (cams active)
13.3.3

Output of cam signals to NCK I/Os in position control cycle

Signal output in position control cycle
For cams assigned to an HW byte via machine data MD10470 to MD10473 (see Section
"Hardware assignment"), the signal is output in the position control cycle.
The 4 onboard outputs on the NCU and a total of 32 optional external NC outputs are available
as the digital outputs of the NC I/Os.
Further information
See Function Manual Basic Functions; Digital and analog NC I/O.
Hardware assignment
The assignment to the hardware bytes used is made for each eight cam pairs in the following
general machine data:
● MD10470 SW_CAM_ASSIGN_FASTOUT_1
● MD10471 SW_CAM_ASSIGN_FASTOUT_2
● MD10472 SW_CAM_ASSIGN_FASTOUT_3
● MD10473 SW_CAM_ASSIGN_FASTOUT_4
412
Hardware assignment for the output of
cams1 - 8 to NC I/O
Hardware assignment for the output of
cams 9 - 16 to NC I/O
Hardware assignment for the output of
cams 17 - 24 to NC I/O
Hardware assignment for the output of
cams 25 - 32 to NC I/O
Function Manual, 06/2019, A5E47437747B AA
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