09.95 12 Functional Descriptions
12.19.5 Interpolation and compensation with tables
Data access via operator panel/machine data dialog
The IKA data can be edited in machine data dialog input displays. These must be handled in
the same way as the machine data (password protection). The data can be erased only in
start-up mode.
The IKA data input displays are stored in the start-up menu under softkey "IKA data".
The %IKA2 and %IKA3 data are lost
when the control is switched off.
Data back-up
• Up to SW 4: The IKA data can be backed up using the machine data dialog. The data are
loaded automatically only if the user has copied the data with the file
extension .ika1, .ika2, .ika3 from the data area Start-up into the data area
NC Data.
• From SW 5: The IKA data concerned can be copied directly under Services.
Data access via part program
1. @ functions
The IKA data can be read or written using @ functions @30c and @40c.
Note:
You will find a detailed description of these @ functions in the Program Guide to SINUMERIK
840C.
All IKA data can be accessed using @30c and @40c.
The following IKA functions cannot be programmed with G functions. If required, these data
can therefore be written in the part program with @40c.
• %IKA1, IKA configuration
- modulo value from input A
- offset input A
- max. output value upper limit
- min. output value lower limit
- max. change of the output value
- cubic or linear interpolation
- weighting input A (numerator)
- weighting input A (denominator)
• %IKA2, IKA curves
- start pointer
- end pointer
- calculation of curves
• %IKA3, compensation curves
- input quantity values
- output quantity values
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SINUMERIK 840C (IA)