Siemens SINUMERIK 840D sl Function Manual page 719

Figure 9-4 Software cams for modulo rotary axis (plus cam - minus cam > 180 degrees)
9.2.2 Generation of cam signals with gated output
General information
The plus and minus cam output signals are gated in the case of:
● timer-controlled cam signal output to the four onboard outputs on the NCU
● output to the NCK I/O devices if the 2nd byte in the following machine data was not
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
specified (= "0"):
MD10470 SW_CAM_ASSIGN_FASTOUT_2
to
MD10473 SW_CAM_ASSIGN_FASTOUT_4
Software Cams, Position Switching Signals (N3)
Cam signals and cam positions
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