![Delphin Expert Logger Manual Download Page 152](http://html.mh-extra.com/html/delphin/expert-logger/expert-logger_manual_2471097152.webp)
Expert
Logger
4.11.16
Calculation channel
This software calculates the input mathematical formula. Any number of
sources can be linked within the formula. Each source is represented by a
variable that can assume either a constant value or the value from the spe-
cified channel.
Method
1. Set the required variables with
Add variable
.
A variable named
var0
is created by default, but its name can be changed.
2. Set whether the variable is to have a constant value (
Manual value
) or
whether the value is to be obtained from a channel (
Channel
).
3. Enter the formula expression in the field
Formula
.
Restrictions on variable names
1. The first character must be alphabetic (a...z/A...Z).
The subsequent characters must be alphanumeric (letters a...z/A...Z or
numbers 0..9) or an underscore (_).
2. Variable names must be unique (no repeat names in different channels).
3. A distinction is made between upper and lower case letters.
Input in the formula field must use the same syntax as for variable names,
otherwise the formula is invalid.
Example
152
Delphin Technology AG
Januar 2018
Expert
Logger
Manual