Lenze EVS9332xS - Manual (Page 193)

Function library
Function blocks
3.2.47 Oscilloscope function (OSZ)
3−141
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EDSVS9332S−EXT EN 2.0
Function Description Selection Code
Memory size C0744 0 ... 6 Set memory depth of the data memory
– Max. size of the data memory: 8192 measured values
¢ 16384 bytes (C0744 = 6)
– Min. size of the data memory: 512 measured values ¢ 1024 bytes (C0744 = 0)
– Changing the memory depth from 512 to 8192 measured values/step
– A memory depth which is optimally adapted to the corresponding measuring task
reduces the data transmission time.
Information on
saving Information on saving the measured values in the data memory
The FB saves the data in a ring format. For reconstructing the chronological signal
sequence the following three "graphic points" are marked.
C0749/1 Measured value no. of the instant of abortion
C0749/2 Measured value no. of the instant of triggering
C0749/3 Measured value no. of the instant of completion
Signal characteristic
before triggering
Trigger level
Instant of triggering
Memory content
Signal characteristic after triggering
Measured signal
Fig. 3−125 Example: Trigger level and trigger delay with approx. −30 % of pre−triggering
Signal characteristic
before triggering
Trigger delay
Trigger level
Instant of triggering
Memory content
Signal characteristic after triggering
Measured signal
Fig. 3−126 Example: Trigger level and trigger delay with approx. −30 % of post−triggering