Siemens SIMATIC S5-115U, User Manual, Page: 188 / 676

Introduction to STEP 5 S5-115U Manual
Figure 7-6. Assigning Function Block Parameters
PB3
Parameter list for
second call
Actual operands
Parameter list for
first call
Formal operands
FB5
: JU FB5
NAME : EXAMPLE
X1 : I 4.1
X2 : F 1.3
X3 : Q 0.1
: JC FB5
NAME : EXAMPLE
X1 : I 4.5
X2 : I 5.3
.
.
: A I 5.2
Formal operands
NAME: EXAMPLE
DECL : X1 I BI
DECL : X2 I BI
DECL : X3 Q BI
: A =X1
: A =X2
: = =X3
: BE
Executed
program ...
X3 : Q 0.1
: A I 4.1
: A F 1.3
: = Q 0.1
a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a
at first call
a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a
at second call
: A I 4.5
: A I 5.3
: = Q 0.1
7.3.5 Data Blocks (DBs)
Data blocks store data to be processed in a program.
The following data types are permissible:
• bit pattern (representation of controlled system states)
• hexadecimal, binary or decimal numbers (times, results of arithmetic operations)
• alphanumeric characters (message texts)
7-16
EWA 4NEB 811 6130-02b