Omron CJ - INSTRUCTIONS REFERENCE MANUAL 07-2009 Reference Manual page 1184

CS/CJ/NSJ Series Instructions Reference Manual (W474)
4. Instruction Execution Times and Number of Steps
Note The number of instruction steps in the function block definition (p) will
not be diminished in subsequence instances when the same function
block definition is copied to multiple locations (i.e., for multiple in-
stances). Therefore, in the 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 1-bit I/O variable (BOOL)
transfer part
1-word I/O variable (INT,
The data type is
UINT, WORD)
shown in parenthe-
2-word I/O variable (DINT,
ses.
UDINT, DWORD, REAL)
4-word I/O variable (LINT,
ULINT, LWORD, LREAL)
p Number of instruc- The total number of instruction steps (same as standard
tion steps in func- user program) + 27 steps.
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
CS/CJ-series CPU Units
with unit version 3.0 or later
57 steps
6 steps
6 steps
6 steps
12 steps
6 steps + 100 steps + 27 steps
4
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