Siemens SIMATIC S7-1200

Basic instructions
8.8 Program control operations
S7-1200 Programmable controller
318 System Manual, V4.2, 09/2016, A5E02486680-AK
8.8.10.3
CASE statement
Table 8- 155 Elements of the CASE statement
SCL
Description
CASE "Test_Value" OF
"ValueList": Statement[; Statement, ...]
"ValueList": Statement[; Statement, ...]
[ELSE
Else-statement[; Else-statement, ...]]
END_CASE;
The CASE statement executes one of several
groups of statements, depending on the value
of an expression.
Table 8- 156 Parameters
Parameter
Description
"Test_Value"
Required. Any numeric expression of data type Int
"ValueList" Required. A single value or a comma-separated list of values or ranges of values. (Use two
periods to define a range of values: 2..8) The following example illustrates the different vari-
ants of the value list:
1: Statement_A;
2, 4: Statement _B;
3, 5..7,9: Statement _C;
Statement Required. One or more statements that are executed when "Test_Value" matches any value
in the value list
Else-statement Optional. One or more statements that are executed if no match with a value of the "Val-
ueList" stated matches