2
General Instruction Characteristics Section 1-1
1-1 General Instruction Characteristics
1-1-1 Program Capacity
The program capacity tells the size of the user program area in the CPU Unit
and is expressed as the number of program steps. The number of steps
required in the user program area for each of the CS/CJ-series instructions
varies from 1 to 7 steps, depending upon the instruction and the operands
used with it.
CS Series
The following tables show the maximum number of steps that can be pro-
grammed in each CS-series CPU Unit.
• CS1-H CPU Units
• CS1 CPU Units
• CS1D CPU Units for Single-CPU Systems
CS1D CPU Units for Duplex-CPU Systems
CJ Series
The following tables show the maximum number of steps that can be pro-
grammed in each CJ-series CPU Unit.
Model Program capacity I/O points
CS1H-CPU67H 250K steps 5,120
CS1H-CPU66H 120K steps
CS1H-CPU65H 60K steps
CS1H-CPU64H 30K steps
CS1H-CPU63H 20K steps
CS1G-CPU45H 60K steps
CS1G-CPU44H 30K steps 1,280
CS1G-CPU43H 20K steps 960
CS1G-CPU42H 10K steps
Model Program capacity I/O points
CS1H-CPU67-E 250K steps 5,120
CS1H-CPU66-E 120K steps
CS1H-CPU65-E 60K steps
CS1H-CPU64-E 30K steps
CS1H-CPU63-E 20K steps
CS1G-CPU45-E 60K steps
CS1G-CPU44-E 30K steps 1,280
CS1G-CPU43-E 20K steps 960
CS1G-CPU42-E 10K steps
Model Program capacity I/O points
CS1D-CPU67H 250K steps 5,120
CS1D-CPU65H 60K steps
Model Program capacity I/O points
CS1D-CPU42S 10K steps 960
CS1D-CPU44S 30K steps 1,280
CS1D-CPU65S 60K steps 5,120
CS1D-CPU67S 250K steps