Omron Programmable Controller CJ1M-CPU21 PLC Compact Applications CJ1MCPU21

Description:

The Omron CJ1M-CPU21 is a compact and high-performance CPU unit from the CJ1M series, designed for small to mid-sized automation systems. It supports up to 160 local I/O points and offers fast processing, built-in RS-232C communication, and flexible memory handling. With 5K steps of program capacity and compatibility with the full range of CJ1 expansion modules, the CJ1M-CPU21 is ideal for machinery control, packaging lines, and process automation requiring reliable and scalable control capabilities.

TECHNICAL SPECIFICATIONS:

CPU Type: CJ1M Series CPU Unit
Model: CJ1M-CPU21
Program Capacity: 5K steps
Data Memory: 32K words (DM), 32K words (EM)
I/O Capacity: 160 local I/O points (up to 256 with expansion)
Processing Speed: 0.1 µs per basic instruction
Built-in Ports: 1 x RS-232C
Expansion Support: CJ1 I/O and special function modules
Instruction Set: Ladder Logic, supports over 300 instructions
Clock: Built-in real-time clock with battery backup
Power Supply: Via separate CJ1 power supply module
Mounting Type: DIN rail or panel mount (CJ1 backplane)
Operating Temperature: 0°C to 55°C (32°F to 131°F)
Dimensions: 90 mm x 90 mm x 65 mm (H x D x W approx.)
Weight: Approx. 250 g (8.8 oz)
Certifications: CE, UL, cUL, RoHS