9-11
IM 701450-01E
9
Waveform Computation
Explanation
This section describes the procedures for setting the differentiation or integration
computation in normal computation mode. If the user-defined computation option is
installed, you must first enter normal computation mode as described in section 9.1. For
a description of the setup procedure of user-defined computation, see section 9.9.
Turning ON/OFF the Computed Waveform Display and Computed Waveform Label
See section 9.1.
Operator
Select the differentiation operator Diff or integration operator Integ as the operator for
Math1 and Math2. The waveform to be computed can be differentiated or integrated.
Waveform to Be Computed
The waveforms on which computation can be performed are as follows:
Computation Name Source
Math1 One channel from CH1 to CH4
Math2 One channel from CH1 to CH4 and Math1
• On the menu, CH1 to CH4 may be indicated as C1 to C4 and Math1 as M1.
• To perform computation on CH5 to CH8 on the DL7480, the optional user-defined
computation function is required.
Scaling
The operation is the same as for addition, subtraction, and multiplication. See section 9.2.
Unit of Computed Waveforms
The operation is the same as for addition, subtraction, and multiplication. See section 9.2.
Smoothing
The operation is the same as for addition, subtraction, and multiplication. See section 9.2.
Integration Start Point
You can set the start point of integration. The selectable range is ±5 divisions, and the
resolution is 10 divisions÷the display record length. For a description of the display
record length, see appendix 1.
Effects of Linear Scaling
The operation is the same as for addition, subtraction, and multiplication. See section 9.2.
Maximum Record Length That Can Be Computed
The operation is the same as for addition, subtraction, and multiplication. See section 9.2.
9.5 Differentiating and Integrating Waveforms
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