Siemens SINUMERIK 840D sl Commissioning Manual

● The update rate and therefore the execution of the associated CHANGE method of
variables that are connected to system or user variables with very frequent value changes,
can be reduced by using the UR variable property, e.g. variable that is coupled to the actual
axis values.
Reason:
In this way, the associated CHANGE method is executed in a fixed specified grid for a value
change.
Tips and tricks
B.3 Tips for the CHANGE method
SINUMERIK Integrate Run MyScreens (BE2)
Programming Manual, 12/2017, 6FC5397-1DP40-6BA1 303

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based