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USING THE COMBISCOPE INSTRUMENTS 3 - 45
3.9 Post Processing
3.9.1 How to do post processing
The post processing functions CALCulate1 and CALCulate2 comply with the front
panel functions MATH1 and MATH2 of the CombiScope instrument. They work
only in the digital mode. The use of the CALCulate functions is as follows:
1 Select the source for the post processing function.
2 Specify the settings of the post processing function.
3 Enable the post processing function.
4 Check the result of the post processing function.
3.9.1.1 Select the source for the post processing function.
Select the trace that is to be sourced into the CALCulate function by sending the
CALCulate<n>:FEED command.
Examples:
Send
→ CALCulate2:FEED "CH3" ’Channel 3 = source for CALC2
Send
→ CALCulate:FEED "M2_1" ’M2_1 = source for CALC1
Empty traces may not be selected as input trace. A memory register 1 location
(M1_ j) may not be specified as the source (feed) for CALCulate1 and a memory
register 2 location (M2_ j) may not be the source (feed) for CALCulate2. After a
*
RST command, CH1 becomes the input trace for both CALculate functions.
Note: CH3 and CH4 cannot be selected as source for the PM33x0B
CombiScope instruments.
SENSe
CH1
CH2
CH3
CH4
TRACe
M1_1
M1_2
M1_3
M1_4
M2_1
M2_2
M2_3
M2_4
M3_1
M3_2
M3_3
M3_4
M50_1
M50_2
M50_3
M50_4
CALCulate1
CALCulate2
ST7161
Figure 3.17 Post processing control