1146 HEIDENHAIN Technical Manual MANUALplus 620
Sampling rate The resolution of the internal oscilloscope is at most 600 µs.
This means that even for CC signals, the signal is only recorded every 600 µs.
However, since the CC 61xx and CC 424 operate with control-loop cycle times
< 600 µs, undersampling results at higher frequencies. This can result in
misinterpretation of the oscilloscope image.
For the CC 61xx and CC 424, the internal oscilloscope displays effective
values, as opposed to the peak values of the CC 422.
I2-t (pow.
module)
Current value of the I
2
t monitoring of the power
module [%]
CC
PLCPrePgm The PLC operands (B, W, D, I, O, T, C) are recorded
before the PLC program run. This means that the
values of the operands are read at the beginning of
the PLC program cycle. For types B, W and D the
contents are recorded, and for the other types the
logical state of the operands are recorded.
–
PLCPostPgm The PLC operands (B, W, D, I, O, T, C) are recorded
after the PLC program run. This means that the
values of the operands are read at the end of the
PLC program cycle. For types B, W and D the
contents are recorded, and for the other types the
logical state of the operands are recorded.
–
Analog Analog axis/spindle:
Analog voltage = nominal velocity value [mV]
–
SPLC-MC SPLC operands of the SPLC program of the MC
(reserved)
–
SPLC-CC SPLC operands of the SPLC program of the CC
(reserved)
CC
IpoDbg Diagnostic information for internal purposes –
CCDbg Diagnostic information for internal purposes CC
Contour
deviat.
Circular interpolation test, contour deviation in mm –
Off No recording for this channel –
Digital signals Meaning
M PLC marker
I Input
O Output
TTimer
C Counter
X Reserved
Analog
signals
Meaning CC
signal
The PLC operands are addressed with numbers in the oscilloscope. You get
the numerical addresses from the PLC diagnostic function Watch List.
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