Formal parameters and actual parameters, Mbs basics – Pilz PSS SB NOT, Basic license User Manual
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MBS Basics
Modular Block System: Emergency Stop Circuits
Formal parameters and actual parameters
Parameters can be set on the MBS standard function blocks. Formal
parameters are established in the block header. The user must assign a
corresponding actual parameter to each formal parameter. When the
standard function block is called up in the user program, the formal
parameters will be replaced by the user-specific actual parameters.
INFORMATION
Depending on the programming language selected on PSS WIN-PRO,
designations for formal parameters and operands may differ from those
found on PSS SW PG. Any designations that are different will
automatically be replaced by PSS WIN-PRO.
Further information is available in the programming manual for “PSS SW-
PG” or “PSS WIN-PRO”.
Formal parameter
PSS SW PG
PSS WIN-PRO: Pilz IL
X
B
W
D
Z
Actual parameter
PSS SW PG
PSS WIN-PRO: Pilz IL
Input bit E
Output bit A
Flag bit M
Input byte EB
Output byte AB
Flag byte MB
Constant KB
Input word EW
Output word AW
Flag byte MW
Constant KW
Data block DB
Timer or counter