Omron CJ1M - Common Specifications

13
Common Specifications
Item Specification
Control method Stored program
I/O control method Cyclic scan and immediate processing are both possible.
Programming Ladder diagram
Instruction length 1 to 7 steps per instruction
Ladder instructions Approx. 400 (3-digit function codes)
Execution time Basic
instructions
0.1
µs min.
Special
instructions
0.3
µs min.
Overhead time 0.5 ms
Unit connection method No backplane (Units joined together with connectors.)
Mounting method DIN track mounting (screw mounting not possible)
Number of tasks 288 (cyclic tasks: 32, interrupt tasks: 256)
Interrupt types Scheduled interrupts: Interrupts generated at a specified interval based on the CPU Unit’s built-in clock.
I/O interrupts: Interrupts from Interrupt Input Units or from built-in inputs (CJ1M-CPU22/23 only).
Power OFF interrupts: Interrupt executed when CPU Unit’s power is turned OFF.
External interrupts: Interrupts from Special I/O Units and CPU Bus Units.
Calling subroutines from multiple
tasks
Supported using global subroutines.
CIO (Core I/O)
Area
I/O Area 640 (40 words): CIO 000000 to CIO 003915 (words CIO 0000 to CIO 039)
Setting of first rack words can be changed from default (CIO 0000) to CIO 0000 to
CIO 0999.
I/O bits are allocated to Basic I/O Units.
These bits can be
used as work bits
when not used for
the applications de-
scribed on the left.
Built-in I/O
Area
10 input bits: CIO 296000 to CIO 296009
6 output bits: CIO 296100 to CIO 296105
Built-in I/O bits are allocated to the CPU Unit’s built-in inputs and outputs (CJ1M-
CPU22/23 only).
Link Area 3,200 (200 words): CIO 100000 to CIO 119915 (words CIO 1000 to CIO 1199)
Link bits are used for data links in Controller Link systems.
CPU Bus Unit
Area
6,400 (400 words): CIO 150000 to CIO 189915 (words CIO 1500 to CIO 1899)
Special I/O
Unit Area
15,360 (960 words): CIO 200000 to CIO 295915 (words CIO 2000 to CIO 2959)
Special I/O Unit bits are allocated to Special I/O Units (10 words per Unit).
Serial PLC
Link Area
90 (90 words): CIO 310000 to CIO 318900 (words CIO 3100 to CIO 3189)
Serial PLC Link words are used for data links in Serial PLC Link systems.
DeviceNet
Area
9,600 (600 words): CIO 320000 to CIO 379915 (words CIO 3200 to CIO 3799)
DeviceNet bits are allocated to Slaves for DeviceNet Unit remote I/O communications
when the master function is used with fixed allocations.
Fixed allocation setting 1 Outputs: CIO 3200 to CIO 3263
Inputs: CIO 3300 to CIO 3363
Fixed allocation setting 2 Outputs: CIO 3400 to CIO 3463
Inputs: CIO 3500 to CIO 3563
Fixed allocation setting 3 Outputs: CIO 3600 to CIO 3663
Inputs: CIO 3700 to CIO 3763