Siemens SINUMERIK Series Function Manual

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N3: Software cams, position switching cycles - only 840D sl8.3 Output of cam signalsExtended FunctionsFunction Manual, 03/2013, 6FC5397-1BP40-3BA1 5478.3.2 Output of cam signals to PLCOutput to PLCThe status of the cam signals for all machine axes with activated software cams is output tothe PLC.The status is output in the IPO cycle and is transferred to the PLC asynchronously.Minus cam signalsThe 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 signalsThe 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)NoteIf 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)8.3.3 Output of cam signals to NCK I/Os in position control cycleSignal output in position control cycleFor 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 four onboard outputs on the NCU and a total of 32 optional external NCK outputs areavailable as the digital outputs of the NCK I/Os (see Section "A4: Digital and analog NCKI/Os for SINUMERIK 840D sl (Page 25)").