Siemens SINUMERIK 840Di sl, Руководство по вводу в эксплуатацию

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NC Commissioning with HMI Advanced
11.3 System data
Manual
366
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
Rounding
The precision of angle and linear positions is limited to the computational resolution by
rounding the product of the programmed value with the computational resolution to an
integer number.
Example of rounding:
Computational resolution: 1000 increments/mm
Programmed path: 97.3786 mm
Effective value = 97.379 mm
Note
To keep rounding easily understandable, it is better to use powers of 10 for the
computational resolution (100, 1000, 10,000).
Display resolution
In MD9004 $MM_DISPLAY_RESOLUTION (display resolution), you can set the number of
decimal places after the decimal point for the position values on the operator panel.
Input and display limit values
Limitation of the input values depends on the display features and on the input options on
the operator panel. The limit is ten digits plus comma and sign.
Example of programming in the 1 /10-μm range:
All the linear axes of a machine are to be programmed and traversed within the value range
0.1 ... 1000 μm.
In order to position accurately to 0.1 μm, the computational resolution must be set to ≥ 10
4
incr./mm.
MD10200 $MN_INT_INCR_PER_MM = 10000 [Inkr./mm]:
Example of related part program:
N20 G0 X 1.0000 Y 1.0000 ; Axes travel to the position
X=1.0000 mm, Y=1.0000 mm;
N25 G0 X 5.0002 Y 2.0003 ; Axes travel to the position
X=5.0002 mm, Y=2.0003 mm