Hudson Robotics SoftLinx 5.0 - Manual (Page 16)

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Protocol Variables
Protocol variables can be defined to help facilitate the execution of the protocol's steps. Variables are often
used in controlling Loop Process steps, Conditional Statements, or even directly setting values within
instruments themselves through the use of the Modify Variable step or the VBA Script steps.
By clicking on the variable icon, the user can define variables for that specific protocol. Variables
defined in this manner do not transfer to other protocols outside of the one in which they are defined.
Protocols support True/False (Boolean) variables, numerical variables, and string variables.
Variables must be named using alphanumeric characters and underscores only. Variable names must also
begin with a letter.
Variables can be added, modified, or deleted from any protocol before execution.