6ES7211-1HE40-0XB0 S7-1200 CPU 1211C Siemens

Siemens SIMATIC S7-1200 CPU 1211C Compact PLC

The Siemens 6ES7211-1HE40-0XB0 delivers robust automation control in a compact design. This CPU 1211C model combines digital, relay, and analog inputs/outputs with PROFINET connectivity. It offers reliable performance for various industrial applications and environments.

Core Technical Specifications

• Brand: Siemens
• Model: 6ES7211-1HE40-0XB0 (CPU 1211C DC/DC/Relay)
• Power Supply: 20.4 - 28.8 V DC with reverse polarity protection
• Onboard I/O: 6 Digital Inputs (24V DC), 4 Relay Outputs (2A), 2 Analog Inputs (0-10V)
• Memory Capacity: 50 KB work memory with 1 MB load memory
• Communication: Integrated PROFINET port with TCP/IP protocol
• Operating Range: -20°C to 60°C horizontal installation

Input and Output Details

• The six digital inputs support 24V DC signals and high-speed counting functions
• Input delay can be configured from 0.2 ms to 12.8 ms in groups of four
• Four relay outputs handle resistive loads up to 2A with 10 ms switching time
• Two analog inputs process 0-10V signals with 10-bit resolution accuracy
• Each analog channel features a fast 625 µs conversion time per reading

Communication Capabilities

• Built-in PROFINET interface supports both controller and device functions
• Simultaneously handles multiple protocols including TCP/IP and ISO-on-TCP
• Integrated web server enables remote monitoring and data access
• Supports expansion with up to 3 communication modules for flexibility
• OPC UA server functionality allows secure data exchange with other systems

Environmental Specifications

• Wide operating temperature range from -20°C to 60°C for harsh environments
• High immunity to electromagnetic interference and power supply disturbances
• Withstands vibrations up to 2g and shocks up to 15g for industrial durability
• IP20 protection level prevents contact with small objects and fingers
• Approved for use in altitudes up to 5,000 meters above sea level

Installation Guidelines

• Mount securely on standard DIN rails in control cabinets or panels
• Use shielded cables for analog signals, limited to 100 meters maximum
• Digital inputs support unshielded cables up to 300 meters in length
• Ensure proper clearance around unit for adequate ventilation and cooling
• Follow local electrical codes and safety standards during installation

Packaging and Shipping

• Package Dimensions: 10.80 × 10.60 × 8.50 cm (L × W × H)
• Product Weight: 0.306 kg (net), 0.380 kg (approximate gross)
• Contents: One Siemens CPU 1211C unit (6ES7211-1HE40-0XB0)
• We ship worldwide using FedEx, UPS, and DHL express services
• Standard packaging ensures safe delivery and product protection

Frequently Asked Questions

• What software programs this controller? Use STEP 7 (TIA Portal) V17 or higher
• Can I expand the I/O capacity? Yes, with signal boards and communication modules
• What is the relay contact lifetime? 100,000 cycles at rated load conditions
• Does it support data logging? Yes, with configurable traces up to 512 KB memory
• What safety features are included? Password protection and know-how protection for programs