The Omron CJ1G-CPU43H serves as the primary CJ1G-CPU43H CPU Processor utilized to execute sequence logic and real-time data memory handling across Omron CJ1 System platforms.

Variant Configuration & Memory Decoding

The designation CJ1G-CPU43H identifies a high-speed central processing unit within the Omron CJ1 architecture. The prefix "CJ1G" specifies high-performance instruction processing, while the "-CPU43H" suffix denotes a enlarged 20 Ksteps program execution memory footprint paired with a 64 Kwords system data memory allocation (32 Kwords DM and 32 Kwords EM bank) for extended memory-intensive industrial automation tasks.

Core Electrical & Physical Specifications

Industrial Control Integration & Bus Dynamics

The processor establishes physical communications via the internal backplane bus communication velocity protocol, maintaining synchronized cyclical transfers with expansion I/O units. Firmware flash compatibility ensures seamless system updates via CX-Programmer while supporting deterministic network data exchanges over EtherNet/IP and Controller Link topologies without logic execution latency.

Component Delivery Manifest

• 1 x Omron CJ1G-CPU43H Central Processing Unit Module
• 1 x Peripheral Interface Dust Protection Cover
• 1 x Technical Hardware Mounting Sheet

Field Cabinet Wiring & Assembly Rules

• DIN-Rail Mounting & Convection Requirements

  Secure the CPU onto a standard 35 mm DIN rail inside an IP54 industrial panel. Install end plates on both outer ends to fix the rack position. Maintain a vertical spacing of at least 50 mm above and below the processor body to support passive convection cooling.

• Grounding Protocols & EMI Isolation

  Connect the functional earth terminal of the companion power supply block to a clean grounding bar with low impedance (under 100 ohms). Route high-voltage power lines and motor drives through separate cable ducts isolated from processor communication lines.

Hardware Technical Knowledgebase

• What is the nominal backplane current draw for the CJ1G-CPU43H unit?

  The module draws 0.91 A from the 5 VDC power bus supplied through the adjacent CJ-series power module.

• Is hot-swapping allowed for this processor module during operation?

  No, hot-swapping is strictly prohibited. Power supply voltage must be isolated before inserting or removing the CPU.

• What maximum discrete and analog I/O density can this processor address?

  The processor addresses up to 960 local discrete and special functional I/O points across connected rack positions.

• How is user memory structured across DM and EM registers?

  The memory layout provides 64 Kwords total, configured as 32 Kwords of DM space and 32 Kwords of EM space across 1 bank.

• How does the unit preserve program variables during supply interruptions?

  An onboard lithium battery backs up user program RAM, system flags, and non-volatile DM registers during power loss.

• What software tools are utilized for firmware interaction and programming?

  System logic and configuration are developed and transferred using Omron CX-Programmer via the peripheral port or serial options.

• What environmental operating limits must be maintained inside the cabinet?

  Maintain an ambient operating temperature range between 0 and 55 deg C with relative humidity between 10% and 90% non-condensing.

• Can external media be utilized for logic transfers and data logging?

  Yes, the front panel features an integrated CompactFlash card interface for parameter transfers and operational log storage.