1756-PM003H-EN-E, SFC and ST Programming Languages ...

Program Structured Text 6-17
The syntax for entering the selector values is:
When selector is:
one value
multiple, distinct values
a range of values
distinct values plus a range
of values
Enter:
value: statement
value1, value2, valueN :
Use a comma (,) to separate each value.
value1...valueN :
Use two periods (..) to identify the range.
valuea, valueb, value1...valueN :
The CASE construct is similar to a switch statement in the C or C++
programming languages. However, with the CASE construct the controller
executes only the statements that are associated with the first matching
selector value. Execution always breaks after the statements of that selector
and goes to the END_CASE statement.
Arithmetic Status Flags:
Fault Conditions:
not affected
none
Publication 1756-PM003H-EN-E (excerpt from 1756-PM001H-EN-P) - August 2005