Omron CS1G-CPU43H Programmable Logic Controller
The Omron CS1G-CPU43H PLC CPU Unit provides processing resources for small-to-medium industrial automation and machine-control systems. This Programmable Logic Controller supports 960 I/O bits, a 20 kStep program capacity, and 64 kWords of data memory for executing control programs and storing operating information. Its 0.04 µs LD instruction processing supports fast control execution, while built-in communication ports provide connectivity with industrial automation devices. The controller accommodates up to 2 Expansion Racks, allowing additional modules to be incorporated as system requirements grow. The CS1G-CPU43H combines compact CPU control with expandable architecture and forms part of the machine control PLC range used across Omron automation.

| Brand | Omron |
| Product Type | Programmable Logic Controller |
| Model Number | CS1G-CPU43H |
| Specification | Value |
|---|---|
| Program capacity | 20K steps |
| Data area memory capacity | 64 kWords (DM: 32 kWords, EM: 32 kWords x 1 bank) |
| LD Instruction processing speed | 0.04 μs |
| I/O bits | 960 bits (Up to 2 Expansion Racks) |
| Built-in ports | Peripheral port and RS-232C port. |
| Options | Memory Cards Inner Board such as Serial; Communications Board, Loop Control Board |
| Current Consumption | 150 mA max. at 5 V DC |
| Control method | Stored program |
| I/O control method | Cyclic scan and immediate processing |
| Programming | Ladder diagram |
| Execution Time | Basic instructions: 0.02 μs min., Special instructions: 0.04 μs min. |
The Omron CS1G-CPU43H is ideal for compact automation systems that require high-speed processing and dependable control over multiple I/O points. Its 64 kWords data memory capacity allows engineers to store large programs and manage complex data structures efficiently, making it suitable for machine control, process automation, and production line applications. The built-in communication interfaces simplify integration with other PLC modules and industrial devices.
Omron CS1G-CPU43H supports up to 2 expansion racks, enabling system scaling without redesigning the main control panel. Its 960 I/O bits and 20 kSteps program capacity offer flexibility for varying industrial automation requirements. Many OEMs and system integrators use this controller to expand compact systems while maintaining high reliability and minimal downtime.
Reliable LD processing and robust data handling make CS1G-CPU43H suitable for continuous operation in demanding industrial environments. Maintenance teams appreciate the straightforward installation and modular expansion, which reduce servicing time and simplify upgrades. Industrial automation companies, panel builders, and machine manufacturers often select this Omron PLC for efficient, scalable, and long-term control solutions.


