Omron C200H-CPU23-E CPU Unit for SYSMAC C200H Programmable Logic Controller Systems
The Omron C200H-CPU23-E is a CPU unit for the SYSMAC C200H series programmable logic controllers, designed for industrial automation applications requiring reliable control and processing capabilities. This CPU module functions as the central processing unit in a PLC system, executing control logic and coordinating numerous operations in industrial automation applications. The C200H-CPU23-E is intended to be powered by a built-in DC power supply with a voltage rating of 24 VDC, providing power for the CPU itself and for attached I/O modules and other system components.
Key Specifications
Model: C200H-CPU23-E CPU Unit
Product Series: SYSMAC C200H Programmable Controller
Power Supply Type: Built-in DC power supply
Supply Voltage: 24 VDC (20.4 to 26.4 VDC)
Output Current Rating: 3 A (maximum)
Maximum Power Consumption: 40 W max.
Current Supplied to I/O Units: 1.6 A (maximum)
Ladder Program Capacity: 6,974 words
General-use DM Capacity: 1K words (1,000 words)
Expansion DM: Not available (no built-in expansion DM modules)
Communication Port: RS-232C port via dedicated connector
Processing Time (Basic Instructions): 0.1 μs
Program Capacity: 31.2K words (total)
Data Memory (DM): 6K words
Extended Data Memory (EM): 6K words × 3 banks (18K words total)
I/O Processing: Synchronous processing, scheduled processing, immediate refreshing, interrupt refreshing
Built-in Clock/Calendar: Not available
Error Log: Not available
Data Trace: Not available
Built-in DC Power Supply
The C200H-CPU23-E features a built-in DC power supply that provides power to the CPU unit and supplies power to connected I/O modules and other system components. The power supply accepts an input voltage range of 20.4 to 26.4 VDC (nominal 24 VDC) and provides an output current rating of up to 3 A. The current supplied to I/O units is up to 1.6 A, sufficient for moderate I/O configurations. The maximum power consumption of the CPU unit itself is 40 W, with an internal 5V DC supply consuming 4.5 A (27 W) and an internal 24V DC supply consuming 0.5 A (12 W). The built-in power supply eliminates the need for a separate power supply unit in many configurations, simplifying system design and reducing component count.
Processing Performance and Instruction Set
The CPU provides a basic instruction processing time of 0.1 μs, enabling fast execution of ladder logic programs for responsive machine control. The instruction set includes basic logic instructions (AND, OR, NOT), timers (TIM), counters (CNT), data movement instructions (MOV), arithmetic instructions (ADD, SUB, MUL, DIV), and comparison instructions (CMP). The 31.2K word program capacity supports moderate-sized control applications with structured programming techniques. The 6K word DM and 18K word EM memory areas provide ample data storage for process variables, recipe data, and production counters.
I/O and Memory Addressing
The C200H-CPU23-E uses a comprehensive memory architecture with multiple data areas for flexible programming. I/O bits are addressed in the I/O area, with I/O processing options including synchronous processing (each cycle), scheduled processing (by control bit), immediate refreshing (immediate I/O refresh during instruction execution), and interrupt refreshing (interrupt processing during I/O refresh). The DM and EM areas store numeric data, with both areas retaining data during power interruptions when protected. The total ladder capacity includes 6,974 user program steps, sufficient for small to medium control applications.
RS-232C Serial Communication
The CPU includes an RS-232C serial port for connection to programming devices, HMIs, and other serial equipment. The RS-232C connector provides standard serial communication with configurable baud rates and data formats. This port supports Host Link protocol for communication with host computers and other Omron devices, enabling program upload/download, data exchange with HMIs, and connection to serial peripherals such as barcode readers and printers. The RS-232C capability simplifies system integration and provides a flexible interface for connecting external devices.
I/O Processing Methods
The C200H-CPU23-E supports multiple I/O processing methods to optimize system response for various applications. Synchronous processing (normal refreshing) updates I/O once per cycle, suitable for most control applications. Scheduled processing uses a control bit to refresh I/O at programmed intervals, allowing the user to adjust I/O timing to balance scan time against I/O responsiveness. Immediate refreshing uses immediate I/O refresh instructions during program execution, useful for applications requiring rapid response to specific inputs. Interrupt refreshing updates I/O data during interrupt processing of the I/O interrupt unit, enabling fast response to high-priority events without waiting for the next scan cycle.
Industrial Applications
The Omron C200H-CPU23-E CPU unit is deployed across a wide range of industrial automation applications. In machine control, it executes logic for packaging machinery, assembly equipment, and material handling systems. In building automation, it controls HVAC equipment, lighting systems, and access control. In process control, it manages batch processes, temperature regulation, and flow control. The CPU's built-in DC power supply eliminates the need for separate power supply units in many configurations, reducing panel space requirements for small to medium control systems.
Conclusion
The Omron C200H-CPU23-E CPU unit provides reliable programmable logic control for SYSMAC C200H systems with 24VDC built-in power supply, 6,974 words program capacity, and RS-232C communication. Its flexible I/O processing, memory architecture, and industrial-rated construction make it a dependable solution for machine control and automation applications.
