78
Number of Function Block Program Steps and Instance Execution Time
Section 2-9
The following table shows the length of time for A, B, and C.
Example: CJ1H-CPU67H-R
Input variables with a 1-word data type (INT): 3
Output variables with a 1-word data type (INT): 2
Total instruction processing time in function block definition section: 10
µ
s
Execution time for 1 instance = 3.3
µ
s + (3 + 2)
×
0.19
µ
s + 10
µ
s = 14.25
µ
s
Note
The execution time is increased according to the number of multiple instances
when the same function block definition has been copied to multiple locations.
Operation
CPU Unit model
CJ1H-
CPU6
@
H-R
CJ2H-
CPU6
@
(-EIP)
CS1H-
CPU6
@
H
CJ1H-
CPU6
@
H
CS1G-
CPU4
@
H
CJ1G-
CPU4
@
H
NSJ
CJ1M-CPU
@@
CP1H-X
@@@
-
@
CP1H-XA
@@@
-
@
CP1H-Y
@@@
-
@
CP1L-M
@@@
-
@
CP1L-L
@@@
-
@
A
Startup time
Startup time not including
I/O parameter transfer
3.3
µ
s
6.8
µ
s
8.8
µ
s
15.0
µ
s
B
I/O parameter trans-
fer processing time
The data type is
indicated in paren-
theses.
1-bit input variable, out-
put variable, or input-out-
put variable (BOOL)
0.24
µ
s
0.4
µ
s
0.7
µ
s
1.0
µ
s
1-word input variable,
output variable, or input-
output variable (INT,
UINT, WORD)
0.19
µ
s
0.3
µ
s
0.6
µ
s
0.8
µ
s
2-word input variable,
output variable, or input-
output variable (DINT,
UDINT, DWORD, REAL)
0.19
µ
s
0.5
µ
s
0.8
µ
s
1.1
µ
s
4-word input variable,
output variable, or input-
output variable (LINT,
ULINT, LWORD, LREAL)
0.38
µ
s
1.0
µ
s
1.6
µ
s
2.2
µ
s
C
Function block defi-
nition instruction
execution time
Total instruction processing time (same as standard user program)
Summary of Contents for CX-PROGRAMMER V8.1
Page 3: ...iv...
Page 5: ...vi...
Page 7: ......
Page 15: ...xvi...
Page 19: ...xx...
Page 25: ...xxvi Application Precautions 4...
Page 26: ...Part 1 Function Blocks...
Page 27: ......
Page 153: ...128 Procedures Section 3 2...
Page 154: ...Part 2 Structured Text ST...
Page 155: ......
Page 159: ...134 CX Programmer Specifications Section 4 2...
Page 205: ...180 Procedures Section 6 1...
Page 207: ...182 System defined external variables supported in function blocks Appendix A...
Page 229: ...204 Revision History...
Page 230: ......