Logix5000 Controllers General Instructions - SLAC Confluence

676 Structured Text ProgrammingoptionalELSEEND_CASE;;...statements to execute whennumeric_expression ≠ anyselectorSee the table on the next page for valid selector values.The syntax for entering the selector values is:When Selector Isone valuemultiple, distinct valuesEntervalue: statementvalue1, value2, valueN : a range of valuesUse a comma (,) to separate each value.value1..valueN : distinct values plus a rangeof valuesUse 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 thecontroller executes only the statements that are associated with thefirst matching selector value. Execution always breaks after thestatements of that selector and goes to the END_CASE statement.Arithmetic Status Flags:Fault Conditions:not affectednonePublication 1756-RM003I-EN-P - January 2007