Omron CJ - 09-2009 Operation Manual page 544

Instruction Execution Times and Number of Steps
Operation
B I/O parameter trans-
fer processing time
The data type is
indicated in paren-
theses.
C Function block defi-
nition instruction
execution time
Guidelines on Converting Program Capacities from Previous OMRON PLCs
496
1-bit I/O variable (BOOL) 0.24 µs
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)
Total instruction processing time (same as standard user program)
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 µs
Execution time for 1 instance = 3.3 µs + (3 + 2) × 0.19 µs + 10 µs = 14.25 µs
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.
Guidelines are provided in the following table for converting the program
capacity (unit: words) of previous OMRON PLCs (SYSMAC C200HX/HG/HE,
CVM1, or CV-series PLCs) to the program capacity (unit: steps) of the CS-
series PLCs.
Add the following value (n) to the program capacity (unit: words) of the previ-
ous PLCs for each instruction to obtain the program capacity (unit: steps) of
the CJ-series PLCs.
CJ-series steps = "a" (words) of previous PLC + n
Instructions
Basic None
instructions
Upward Differentiation
Immediate Refreshing
Upward Differentiation and
Immediate Refreshing
Special None
instructions
Upward Differentiation
Immediate Refreshing
Upward Differentiation and
Immediate Refreshing
For example, if OUT is used with an address of CIO 000000 to CIO 25515, the
program capacity of the previous PLC would be 2 words per instruction and
that of the CJ-series PLC would be 1 (2 – 1) step per instruction.
CPU Unit model
CJ1H- CS1H-
CPU6@H-R CPU6@H
CJ1H-
CPU6@H
0.4 µs
0.19 µs 0.3 µs
0.19 µs 0.5 µs
0.38 µs 1.0 µs
Variations
C200HX/HG/HE to
OUT, SET, RSET, or
KEEP(011): –1
Other instructions: 0
None
None
None
0
+1
None
None
Section 10-5
CS1G- CJ1M-CPU@@
CPU4@H
CJ1G-
CPU4@H
0.7 µs 1.0 µs
0.6 µs 0.8 µs
0.8 µs 1.1 µs
1.6 µs 2.2 µs
Value of n when Value of n when
converting from converting from
CV-series PLC or
CJ Series CVM1 to CJ Series
0
+1
0
+2
–1
0
+3
+4