752 HEIDENHAIN Technical Manual iTNC 530 HSCI
Log function The Cycles 451 and 452 save log files in the PLC:\ directory, from which you 
can see the results of the individual measuring points. TNCscope can be used 
for a graphic evaluation (import the table). On the Extras -> Info tab, you can 
display additional information about the measurement and a short legend of 
the individual measured data. 
The files are saved under PLC: as TCHPR45x_<axis name>.A. The columns 
created may vary depending on the conditions for measurement.
Data with the designation REF are to be understood with respect to the 
machine coordinate system. Data with the designation ERROR are measured 
errors in the coordinate system of the rotary axes. Data with the designation 
OPT are the errors to be expected in the coordinate system of the rotary axes 
after an optimization. 
The data can be imported for evaluation (e.g. in TNCscope, Excel).
TNCscope: Open the file in TNCscope by selecting:
 File – Import Table. Then select the file to be opened.
 The Import Table dialog box opens.
 Select Fixed sampling interval and enter the value 1 ms in the Time unit 
field.
 Select "/" as the column separator and confirm your entry with OK.