HEIDENHAIN PWM 20 - Manual (Page 195)

198 HEIDENHAIN ATS Software User's Manual
6.3.2 Explanation of the display
Check functions
bar
Level:  Oscilloscope display of the TTL/HTL signals
 Position and frequency display
 Signal monitoring
 Bar graphs of the TTL/HTL signal parameters
 Evaluation of the levels
Logic:  TTL measured value recording at very high sampling rate (200 MS/s;
cannot be changed)
 Logic analysis of the 0 and 1 levels (no level measurement!)
 Measurement of on-to-off ratios TV A / TV B and phase angle
 Measurement of REF signal position and width
 Measurement of minimum edge separation
Counter:  Test of counting function by counter start/stop with ref. mark.
Function as with 1 Vpp and 11 µApp sinusoidal output signals.
Description of the function: see section “Counter function” on
page 174.
Note
The software indicates if there are calculation problems. If, for example, the frequencies are
too high, or if the displayed signal section is too small to calculate the reference mark, etc.
A yellow Attention symbol is displayed to the right of the Note button.
Note
For an exact diagnosis always check (traverse) the entire measuring range!