Omron CJ1M-CPU11 CPU Unit

Series#: Omron

Product Details

OMRON CJ-Series CJ1M-CPU11/21 – High-performance compact PLC CPU Unit for mid-range automation.
Ultra-fast processing: Basic instructions executed in 0.10 µs min, special instructions in 0.15 µs min.
Flexible programming: Supports Ladder, SFC, ST, and Mnemonic languages for versatile control.
Robust interrupt handling: Up to 288 tasks (32 cyclic + 256 interrupt) with scheduled, I/O, and power-off interrupts.
Extensive I/O expansion: Connect up to 20 units total (10 on CPU rack + 10 on expansion rack) with no backplane required.
Compact DIN-rail mounting with integrated memory and high-speed performance for demanding applications.
100% Brand New & Original, securely packed and ready for reliable global shipping.

Specification

The OMRON CJ-Series CJ1M-CPU11/21 CPU Units are engineered for reliable, high-speed control in compact industrial environments. These units combine a powerful 32-bit RISC processor with a rich set of built-in features, including a versatile memory system, multiple programming languages, and advanced interrupt capabilities. Designed for seamless integration into CJ1M racks, the CPU11/21 offers exceptional performance for mid-range automation tasks, from simple machine control to complex process sequences. With a minimum instruction execution time of 0.10 µs for basic operations and 0.15 µs for special instructions, these CPUs ensure rapid response and precise timing. The units support up to 288 tasks (32 cyclic + 256 interrupt) and can manage up to 20 units in a system, making them ideal for applications requiring both speed and flexibility.

Specification	Details
Control Method	Stored program (cyclic scan with immediate processing)
I/O Control Method	Cyclic scan and immediate processing
Programming Languages	LD (Ladder), SFC (Sequential Function Chart), ST (Structured Text), Mnemonic
CPU Processing Mode	Normal Mode or Peripheral Servicing Priority Mode
Instruction Length	1 to 7 steps per instruction
Ladder Instructions	Approx. 400 (3-digit function codes)
Execution Time (Basic)	0.10 µs min (CPU11/21)
Execution Time (Special)	0.15 µs min (CPU11/21)
Overhead Time	0.7 ms min (CPU11/21)
Unit Connection Method	No backplane – units connected directly to each other
Mounting Method	DIN Track (screw mounting not possible)
Max. Number of Connectable Units	Total 20 units (10 on CPU rack + 10 on expansion rack)
Max. Number of Expansion Racks	Expansion not possible (CPU11/21)
Number of Tasks	288 total: 32 cyclic + 256 interrupt (including extra cyclic tasks)
Interrupt Types	Power OFF (1 max), Scheduled (2 max, 0.5 ms to 99,990 ms intervals), I/O (32 max), External (256 max)
Function Blocks	Supported (CPU unit version 3.0 or later) – Ladder and ST languages
Work Area	8,192 bits (512 words): W00000–W51115
Holding Area	8,192 bits (512 words): H00000–H51115 + FB Holding Area H512–H1535
Auxiliary Area	Read-only: 7,168 bits (448 words) A00000–A44715; Read/write: 8,192 bits (512 words) A44800–A95915
Temporary Area	16 bits (TR0–TR15)
Timer Area	4,096 timers: T0000–T4095
Counter Area	4,096 counters: C0000–C4095
DM Area	32 Kwords: D00000–D32767; Internal Special I/O: D20000–D29599; CPU Bus Unit: D30000–D31599
Index Registers	IR0–IR15 (32-bit each, 2 words) – independent or shared per task
Task Flag Area	32 flags: TK0000–TK0031 (read-only)
Trace Memory	4,000 words (trace data: 31 bits, 6 words)
File Memory	Compact Flash memory cards (MS-DOS format)

Power Supply: Requires external 24 VDC via CJ1W-PA/PD series power supply units (not included).
Communication Ports: Built-in peripheral port for programming; optional serial/ Ethernet modules via CJ1W-CIF series.
Memory Capacity: Program capacity up to 10K steps; data memory 32K words (DM) plus 8K words (EM optional).
Battery Backup: Lithium battery for RAM retention (typical life 5 years).
Operating Environment: 0–55°C, 10–90% RH (non-condensing), IP20 protection.
Certifications: CE, UL, cUL, and RoHS compliant.
Weight: Approx. 150 g (without accessories).