Omron CJ1G-CPU42H SYSMAC CJ1 Series PLC CPU Module

Description

Engineered for high-speed industrial control and processing efficiency, the Omron CJ1G-CPU42H serves as a reliable central processing unit within the modular SYSMAC CJ1 series. This CPU unit is optimized for applications requiring extensive data management and medium-to-large-scale I/O integration without the constraint of a traditional backplane. By coordinating control tasks directly through its bus interface, this module delivers rapid instruction execution and flexible system expansion.

The CJ1G-CPU42H features a robust memory profile, balancing program execution with dedicated data storage to handle complex math instructions, recipe storage, and local data logging. Its backplaneless design allows direct DIN rail mounting alongside standard CJ-series digital, analog, and communication modules, resulting in a significantly reduced footprint in control cabinets.

Features

• Efficient processing core supporting up to 10 Ksteps of program capacity.
• Generous data memory layout with 64 Kwords total capacity, split into 32 Kwords of DM and 32 Kwords of EM across 1 bank.
• Handles up to 960 local and remote I/O connection points.
• High-density packaging with a direct DIN-rail-stacking mechanical layout.
• Fully compatible with CX-Programmer software for system configuration, diagnostics, and logic design.

Applications

• Automated packaging and wrapping machinery.
• Water and wastewater treatment distribution panels.
• Textile and material winding systems.
• Automated assembly lines and material handling conveyors.

Technical Specifications

Installation Guidelines

To ensure optimal thermal dissipation and signal integrity when deploying the CJ1G-CPU42H CPU module, adhere to the following guidelines:

• Mounting: Securely snap the CPU unit onto standard 35-mm DIN rail. Ensure all adjacent I/O modules are firmly locked together using the integrated slide locks.
• Clearance: Maintain at least 50 mm of vertical clearance above and below the PLC assembly to allow proper convective airflow and ventilation.
• Power & Grounding: Always connect a low-resistance functional ground wire to the power supply module adjacent to the CPU to suppress high-frequency electromagnetic noise.
• Handling: Do not insert or remove the CPU, memory cards, or adjacent expansion modules while the system power supply is turned on.

Compliance and Certifications

• CE Mark
• UL Listed
• cULus