2680A/2686A
Users Manual
3-30
Using Equations with Computed Channels
If you select the Computed Channel Equation function, and press the Equation
button, the Expression entry dialog appears.
alg120s.bmp
The following is a list of the valid notations in an expression.
Axxx
Alarm on/off (Boolean value of 1 or 0)
Cxxx
Any channel measurement
C9xx
Computed channel
TS
Time since last measurement (milliseconds)
TOT
Totalizer
Operators
+, -, *, /, **, unary +, unary -, abs, exp, int, ln, log, and sqr
Operators
Values in integer, floating point or scientific notation (for
example, 1 -2.345 +6.7890E-03)
Each computed channel can have an expression of up to 250 characters but the
total maximum number of characters available in all 60 channels is limited to
6,000 characters.
Summary of Contents for 2680A
Page 8: ......
Page 14: ...2680A 2686A Users Manual vi ...
Page 20: ...2680A 2686A Users Manual 1 2 ...
Page 98: ...2680A 2686A Users Manual 2 62 ...
Page 196: ......
Page 228: ...2680A 2686A Users Manual A 32 ...
Page 236: ...2680A 2686A Users Manual C 4 ...
Page 242: ...2680A 2686A Users Manual D 6 ...
Page 274: ...2680A 2686A Users Manual 6 ...