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IM DL850E-01EN
Differences between Real Time Math and Standard Math
This section explains the differences between the real time math operations that you configure by pressing CH
(/G3 option) and the standard math operations that you configure by pressing MATH.
Real Time Math
• Math operations can be performed in real time on waveforms (A/D converted data) that are applied to the
input channels of each of the modules.
• Even when the display is in roll mode, you can view the real time math results.
• There are no limits on the record length. Because the data of normal input channels is switched with the real
time math results and acquired in acquisition memory, you can specify the same record length as that of the
normal input channels.
• You can trigger the DL850E/DL850EV on real time math results.
• Regardless of the DL850E/DL850EV sample rate, math operations are always performed on the data that is
output from each module at a maximum math rate of 10 MS/s.
• Real time math can be used in all acquisition modes (including the dual capture mode).
Plug-in
module
Real time math
ACQ memory
Trigger circuit
16 channels
16 channels
16 channels
Math operations
GIGAZoom
Engine 2
Real time math
Standard Math
• Because waveforms are processed after they are acquired, the waveform update period is long.
• Math cannot be performed when the display is in roll mode.
• Math is performed on data that was acquired into acquisition memory at the DL850E/DL850EV sample rate.
• Because math results are stored in the main memory of the main CPU, there are limits on the record length (for
one channel, the maximum is 1 Mpoint).
• You can not trigger the DL850E/DL850EV on math results.
• Because math is performed by a general-purpose CPU, a wide variety of expressions are available.
Plug-in
module
ACQ memory
16 channels
GIGAZoom
Engine 2
Math results
Main CPU
2 Vertical Axis