Cj-Series Instruction Execution Times And Number Of Steps - Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual

CJ-series Instruction Execution Times and Number of Steps

4-1-33 Special Function Block Instructions (CPU Unit Ver. 3.0 or Later
Only)
Instruction Mnemonic
GET VARI- GETID
ABLE ID
Guidelines on Converting
Program Capacities from
Previous OMRON PLCs
4-2 CJ-series Instruction Execution Times and Number of
Steps
1312
Code Length
(steps)
(See note.)
286 4
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 instruction to obtain the program capacity (unit: steps) of the
CS-series PLCs.
CS-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 a C200HX/HG/HE PLC would be 2 words per instruction
and that of the CS-series PLC would be 1 (2 – 1) step per instruction.
For example, if !MOV is used (MOVE instruction with immediate refreshing),
the program capacity of a CV-series PLC would be 4 words per instruction
and that of the CS-series PLC would be 7 (4 + 3) steps.
The following table lists the execution times for all instructions that are avail-
able for CJ PLCs.
The total execution time of instructions within one whole user program is the
process time for program execution when calculating the cycle time (See
note.).
Note User programs are allocated tasks that can be executed within cyclic tasks
and interrupt tasks that satisfy interrupt conditions.
ON execution time ( s)
CPU-6@H CPU-4@H CPU-6@
14 22.2 ---
Variations Value of n when
converting from
C200HX/HG/HE to
OUT, SET, RSET,
or KEEP(011): –1
Other instructions:
0
None
None
None
0
+1
None
None
Section 4-2
Conditions
CPU-4@
--- ---
Value of n when
converting from
CV-series PLC or
CS Series CVM1 to CS
Series
0
+1
0
+2
–1
0
+3
+4