OMRON SYSMAC C200HS‑CPU01‑E – Compact PLC CPU Unit

The OMRON SYSMAC C200HS-CPU01-E is a highly regarded programmable logic controller CPU that serves as the brain for the C200HS series automation systems. This unit provides a balanced combination of processing speed, memory capacity, and I/O handling, making it suitable for a wide range of industrial control applications from packaging to material handling.

Processor and Performance

The CPU01‑E is based on a 16‑bit microprocessor with an instruction execution time of 0.15 µs for basic logic instructions and 0.6 µs for special instructions. It has a user program memory of 7.2K words (RAM) backed by a lithium battery for data retention. The data memory includes 4K words of internal relays and 1K words of holding relays, providing ample storage for medium‑complexity programs.

Built‑in I/O and Expansion

The CPU unit itself does not include built‑in digital I/O, but it supports expansion through a variety of C200H‑series I/O modules mounted on a backplane. Up to 11 racks can be connected, allowing a maximum of 512 I/O points. The system supports high‑speed counters, pulse outputs, and interrupt inputs via special I/O units.

Programming and Software

Programming is accomplished using OMRON’s SYSMAC programming tools (CX‑Programmer or earlier LSS). The unit supports ladder diagram programming with a rich set of instructions including data move, arithmetic, compare, and shift operations. It also supports user‑defined function blocks and subroutine calls for structured programming.

Communication Ports

A built‑in RS‑232C port (on the CPU) allows connection to a programming device, HMI, or other serial equipment. Additionally, an optional communication board can be installed for Host Link, Controller Link, or DeviceNet networks, enabling integration with plant‑wide information systems and remote I/O.

Diagnostic and Fault Detection

The C200HS-CPU01‑E includes self‑diagnostic functions such as watchdog timer, memory verification, and battery low detection. Error codes are stored in the system memory and can be read by the programmer. Front panel LEDs indicate POWER, RUN, ERROR, and ALARM status for quick system health checks.

Environmental and Power

Operating temperature range is 0 °C to 55 °C with humidity 10% to 90% non‑condensing. The CPU consumes 5 V DC from the backplane with typical current of 1.2 A. It is rated for pollution degree 2 and complies with CE and UL standards.

Typical Applications

This controller is widely found in conveyor systems, small assembly machines, printing presses, and water treatment plants. Its reliability and ease of programming have made it a staple in many factories worldwide, and it remains a popular choice for retrofitting legacy systems.

Battery Maintenance and Replacement

The backup battery (CR2032) typically lasts 5 years under normal conditions. A battery replacement procedure is well documented, ensuring data retention during power‑off periods. The CPU also features a capacitor that maintains memory for several minutes while the battery is changed.

In summary, the OMRON SYSMAC C200HS-CPU01‑E offers proven performance and expandability, making it a dependable controller for a variety of industrial automation needs.