Description
The SIMATIC S7-200 SMART is a compact and cost-effective micro-PLC from Siemens, designed for small to medium automation projects. The CPU ST40 (6ES7288-1ST40-0AA2) is a standard transistor output model, while the CPU SR40 (6ES7288-1SR40-0AA2) is a relay output version. Both feature a built-in Ethernet port for programming and HMI communication, integrated I/O, and real-time clock functionality, making them ideal for standalone machines and distributed control systems.
Key Features
- Series: SIMATIC S7-200 SMART
- Model: CPU ST40 (Transistor) / CPU SR40 (Relay)
- Order Numbers: 6ES7288-1ST40-0AA2 / 6ES7288-1SR40-0AA2
- Built-in I/O: 24 DI / 16 DO (Total 40 I/O)
- Communication: Integrated Ethernet (TCP/IP), RS485 port
- Programming: STEP 7-MicroWIN SMART (Free software)
- Country of Origin: Siemens (Global Manufacturing)
Technical Specifications
- Supply Voltage: 20.4–28.8 V DC (ST40) / 85–264 V AC (SR40)
- Digital Inputs: 24 x 24 V DC (Sink/Source)
- Digital Outputs: 16 x (Transistor 0.75A / Relay 2A)
- Program Memory: 24 KB
- Data Memory: 16 KB
- High-Speed Counters: 6 channels (up to 200 kHz)
- Pulse Outputs: 3 channels (ST40 only, up to 100 kHz)
- Real-Time Clock: Built-in (with battery backup option)
- Expansion: Supports up to 6 signal modules (SM)
- Protection Class: IP20
- Standards: CE, UL, RoHS compliant
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3–6 months warranty
- Technical support for model selection (ST vs. SR)
- Wiring and configuration assistance
- Compatibility verification with expansion modules (EM)
- Commissioning and diagnostics support available
Delivery Time
- Standard delivery: 3–5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens automation components
- Global supply network with competitive pricing
- Expertise in PLC systems and industrial networks
- Comprehensive technical documentation (manuals, CAD)
- Responsive customer service and support
Applications
- Small machine control (packaging, conveying)
- Building automation (HVAC, lighting)
- Water treatment and pumping systems
- Laboratory and test bench equipment
- Educational and training setups
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