The Siemens SIMATIC S7-200 CPU 224 PLC (6ES7214-1AD23-0XB0) is a compact programmable logic controller designed for industrial automation, machine control, and process sequencing. This CPU 224 model features a 24 V DC power supply, 14 integrated digital DC inputs, and 10 transistor-type digital DC outputs, making it suitable for compatible industrial control applications.

The CPU processes input signals from sensors, switches, and other field devices according to the user program. Its transistor outputs can control compatible DC loads and support high-speed pulse applications within the specified electrical ratings. Integrated communication functions support established S7-200 communication methods, while compatible expansion modules allow the controller to be incorporated into larger control configurations.

The CPU 224 provides up to 12 KB of program memory and 8 KB of data memory under the specified operating conditions. It supports high-speed counting, pulse generation, timers, counters, and serial communication features useful for automation tasks. Compatible S7-200 expansion options and PROFIBUS DP connectivity can extend system functionality where the appropriate hardware is installed.

This controller is particularly useful for maintaining or repairing existing Siemens S7-200 installations. Siemens classifies this model as a spare part, so buyers should confirm availability, product condition, and programming compatibility before ordering.

Key Features

• Siemens SIMATIC S7-200 CPU 224 compact PLC

• Exact order number: 6ES7214-1AD23-0XB0

• 24 V DC power supply

• 14 integrated digital DC inputs

• 10 integrated transistor-type digital DC outputs

• Up to 12 KB program memory and 8 KB data memory

• Integrated RS-485 serial communication interface

• Supports PPI, MPI-related communication, and freeport serial communication as specified

• High-speed counter functionality

• High-speed pulse outputs for compatible applications

• Expansion support for compatible S7-200 modules

• PROFIBUS DP expandable

• Designed for industrial machine control and process automation

• Suitable for compatible legacy Siemens PLC systems

Technical Specifications

Technical specifications are based on published product documentation. Check the manufacturer's datasheet for detailed output-current limits, wiring requirements, operating conditions, and hardware compatibility.

Applications

The Siemens S7-200 CPU 224 can be used in compatible automation systems for:

• Industrial machine and equipment control

• Conveyor and material-handling systems

• Packaging and production machinery

• Pump and water-control systems

• Sensor monitoring and digital signal processing

• Counting and pulse-based control applications

• Manufacturing and assembly equipment

• Control-panel maintenance and repair

• Legacy PLC replacement and refurbishment

• Compatible PROFIBUS DP automation systems

Compatibility and Installation

Before purchasing, verify that the existing system requires 6ES7214-1AD23-0XB0. This version uses a 24 V DC power supply and transistor-type DC outputs. It is not a direct substitute for CPU 224 versions that use relay outputs or AC power supplies.

Check the CPU's hardware revision, output wiring, connected loads, expansion modules, communication interfaces, and programming software. Transistor outputs have specific polarity, current, and switching limitations; use suitable interface relays or drivers when required by the application.

Installation, wiring, and commissioning should be performed by qualified personnel in accordance with Siemens documentation and applicable electrical safety practices.

Product Availability Note

This is a legacy Siemens S7-200 CPU listed as a spare part. Availability may vary by supplier and may include new old stock, used units, or refurbished products. Confirm condition, warranty, and return terms with the seller before purchasing.