Parameterizing The Switching Signal; Parameterization Of The Geometry Axes - Siemens SINUMERIK 840D sl Function Manual

20.3.4

Parameterizing the switching signal

Output number of the switching signal
Once the compile cycle has started up, the following function-specific machine data appears
in the channel-specific machine data:
MD62560 $MC_FASTON_NUM_DIG_OUTPUT (number of the digital output of the switching
signal)
The number n of the on-board digital output through which the switching signal is to be output,
must be entered in it:
n = 1, 2, 3 or 4
Disable
Entering the number of the digital output n = 0 deactivates the function. No message or alarm
is output.
Effect on other output signals
The hardware-timer-controlled output of the switching signal at the parameterized output
delays the signal output for the other digital on-board outputs, e.g. due to synchronized actions,
by 2 IPO cycles.
20.3.5

Parameterization of the geometry axes

Standard setting
Machines for high-speed laser cutting normally have two geometry axes that are configured
in the following two machine data:
MD20050_$MC_AXCONF_GEOAX_ASSIGN_TAB[0]
MD20050_$MC_AXCONF_GEOAX_ASSIGN_TAB[1]
The calculation of the switching instants is derived from these two geometry axes.
Note
The configured axis selection for calculating the switching instants can be changed by
redefining the first and second geometry axes in the part program with the help of program
instructions GEOAX(1,
Important:
For the function change to be considered correctly, it should occur before the interpretation of
the CC_FASTON command.
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
TE8: Cycle-independent path-synchronous switching signal output - 840D sl only
<axis name> ) and GEOAX(2, <axis name> ).
20.3 Startup
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