120 ME Experimental Methods Laboratory
Ananda Mysore
Spring 2008
Ananda Mysore
String, Enum, and Error Cases
String Case Case Enum Case Error
Spring 2008
ME 120 Experimental Methods Laboratory Ananda Mysore
State Machine Architecture
Advantages Can go from any state from any other Easy to modify and debug Disadvantages Can lose events if two occur at the same time States: 0: Startup 1: Idle 2: Event 1 3: Event 2 4: Shutdown
Spring 2008
ME 120 Experimental Methods Laboratory Ananda Mysore
Simple State Machine
Spring 2008
ME 120 Experimental Methods Laboratory Ananda Mysore
A string is a sequence of displayable or - characters (ASCII) Many uses -- displaying messages, instrument control, file I/O String control/indicator is in the ControlsString subpalette
Strings
Spring 2008
ME 120 Experimental Methods Laboratory Ananda Mysore
String Display Modes
Normal display \ code display
Password display
Hex display
Spring 2008
Ananda Mysore
String Length
Concatenate Functions
String Strings
(spaces here)
Spring 2008
ME 120 Experimental Methods Laboratory Ananda Mysore
String Functions
String Subset
Match Pattern
Spring 2008
Ananda Mysore
Converting Strings to Numerics: Scan From String
Spring 2008
ME 120 Experimental Methods Laboratory Ananda Mysore
Converting Numerics to Strings: Build String
Spring 2008
ME 120 Experimental Methods Laboratory Ananda Mysore
Formula Node
Note semicolon
In the Structures subpalette Implement complicated equations Variables created at border Variable names are case sensitive Each statement must terminate with a semicolon (;) Context Help Window shows available functions
ME 120 Experimental Methods Laboratory Ananda Mysore
Spring 2008
Decision Making with Formula Nodes
Two different ways of using an if-then statement in a Formula Node Both structures produce the same result
ME 120 Experimental Methods Laboratory Ananda Mysore
Spring 2008