Cleverscope CS300 - Page 125

v2.13 Cleverscope CS300 Reference Manual
©Cleverscope 2004-2018 www.cleverscope.com Page 125
green when active.
Choose an output process.
These processes combine the results of previous samples to determine the next value.
The process ----> just transfers the data to the desired Destination channel.
Choose the Destination channel. Channels c and d are useful as intermediate storage.
Digital values remain as real numbers until transferred to a digital input, at which point values >0 become true,
and values <=0 become false.
The equations are evaluated from top to bottom. Outputs from an equation are used as inputs to the next
equation.
Examples:
Equation
Process
Result
-a
----->
Inverts a
a+b
----->
Adds a and b
a*d
----->
Multiplies a and d, e.g. Power = volts x amps
sign(-(abs(a-b)-8.5))
----->
Returns 1 if the difference between a and b is <8.5, otherwise -1
c:a
X:Y Phase
Returns Phase (in degrees) between c and a
b:1
X:Y Sig Gen
Sets the Sig Gen frequency to value given in b
Click Apply Equations once you are happy with them. Any invalid equations will not be activated.
Click Set Filter 1 and Set Filter 2 to setup the filters applying to the Filter 1 and 2 processes.
You can get help on a process by selecting it at the bottom of the window and a process description will appear
in Process Help. In the descriptions, samples means the output of the preceding equation, output into X (if an
X:Y pair is used).
The Maths system has a large number of processes. These processes are:
Integral, Differential, Filter 1, Filter 2, Values >0?, DC, Average, Std Dev, RMS, Pk-Pk, Minimum, Maximum,
Freq (Amax), Amax (Fo), Phase (Fo), Period, Duty Cycle, Pulse Width, Undershoot, Overshoot, Slew rate, X:Y
Pwr Factor, X:Y Phase, X:Y Pwr Watts, X:Y VA, X:Y Var, X:Y A leads B?, X:Y Seq Integral, Seq Time Diff, X:Y
Interleave, X:Y Sig Gen, X:Y Autosave.
Help for each process is included in the Maths equation builder. Extended signal information is included in the
processes.
Of particular note are the Values >0?, X:Y Sig Gen and X:Y Autosave processes.
The Values>0? process yields all 0 if no value is >0, and 1 if at least one value is >0. This process can be used to
check if any value exceeds a threshold. For example say we were trying to find out if the peak voltage ever
exceeded 260V.
We would use this maths equation:
a-260
values>0?
b
b would now contain 1 if any value was >260V, otherwise 0.
X:Y Autosave can be used to save a graph if any value in A is >0. The current Autosave setup is used. This can
be used to log out of range events.
(a-260):1
X:Y
Autosave
b
Saves Scope Display if any value in a is >260V. b will contain 1 if we
saved, or 0 if we did not.
X:Y Sig gen can be used to set the Signal Generator to a frequency, amplitude, or waveform.