Description
The Siemens SIMATIC S7-200 SMART CPU ST series (ST20, ST30, ST40, ST60) are high-performance micro PLCs designed for industrial automation. These controllers feature a DC/DC/DC power configuration, providing robust transistor outputs ideal for high-speed applications like pulse output (PTO/PWM). With integrated Ethernet and RS485 ports, they support seamless communication with HMIs, drives, and other devices. The compact design and modular expansion capability make them perfect for small to medium-sized machines.
Key Features
- High-Speed Performance: Supports up to 3 channels of 100kHz high-speed pulse output (PTO/PWM) for precise motion control.
- Integrated Communication: Built-in Ethernet port for programming and HMI connectivity; RS485 port for Modbus RTU, USS, and PPI protocols.
- Modular Expansion: Supports up to 6 expansion modules (EM) and signal boards (SB) for flexible I/O configuration.
- Real-Time Clock: Integrated RTC for time-stamping and scheduling operations.
- Robust Design: Metal housing with IP20 protection, suitable for industrial environments.
- Country of Origin: Germany
Technical Specifications
Parameter | ST20 (6ES7288-1ST20-0AA0) | ST30 (6ES7288-1ST30-0AA0) | ST40 (6ES7288-1ST40-0AA0) | ST60 (6ES7288-1ST60-0AA0) |
|---|---|---|---|---|
Onboard I/O | 12 DI / 8 DO | 18 DI / 12 DO | 24 DI / 16 DO | 36 DI / 24 DO |
Program Memory | 20 KB | 30 KB | 40 KB | 60 KB |
Data Memory | 12 KB | 16 KB | 20 KB | 30 KB |
Max. I/O (with expansion) | 212 points | 222 points | 232 points | 242 points |
High-Speed Counter | 4 channels (200kHz) | 4 channels (200kHz) | 4 channels (200kHz) | 4 channels (200kHz) |
Power Supply | 20.4-28.8V DC | 20.4-28.8V DC | 20.4-28.8V DC | 20.4-28.8V DC |
Dimensions (WxHxD) | 90x100x81 mm | 90x100x81 mm | 125x100x81 mm | 175x100x81 mm |
Weight | ~320 g | ~320 g | ~420 g | ~528 g |
Standards | CE, UL, CSA, RoHS compliant | CE, UL, CSA, RoHS compliant | CE, UL, CSA, RoHS compliant | CE, UL, CSA, RoHS compliant |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Technical support for configuration and installation
- Wiring and mounting assistance
- Compatibility verification with existing systems
- Commissioning and diagnostics support available
Delivery Time
- Standard delivery: 3-5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens components with original packaging
- Global supply network with competitive pricing
- Expertise in industrial automation systems
- Comprehensive technical documentation
- Responsive customer service and support
Applications
- Standalone small machines (packaging, conveying, pumps)
- High-speed motion control (stepper/servo drives)
- Material handling and conveyor systems
- Packaging and labeling machinery
- Building automation (lighting, HVAC)
- OEM solutions for compact equipment
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