Omron CP - PROGRAMMING MANUAL 05-2007 Programming Manual page 1122

Function Block Instance Execution Time
above equation, the number of instances is not multiplied by the number of
instruction steps in the function block definition (p).
Contents
m Call part
n I/O parameter
transfer part
The data type is
shown in parenthe-
ses.
p Number of instruc-
tion steps in func-
tion block definition
Example:
Input variables with a 1-word data type (INT): 5
Output variables with a 1-word data type (INT): 5
Function block definition section: 100 steps
Number of steps for 1 instance = 57 + (5 + 5)
= 244 steps
1-bit I/O variable (BOOL)
1-word I/O variable (INT,
UINT, WORD)
2-word I/O variable (DINT,
UDINT, DWORD, REAL)
4-word I/O variable (LINT,
ULINT, LWORD, LREAL)
The total number of instruction steps (same as standard
user program) + 27 steps.
6 steps + 100 steps + 27 steps
Section 4-2
CP/CS/CJ-series CPU Units
57 steps
6 steps
6 steps
6 steps
12 steps
1089