6ES7212-1HE40-0XB0 CPU 1212C DC/DC/Relay 8DI/6DO/2AI | Siemens

The Original New Siemens 6ES7212-1HE40-0XB0 SIMATIC S7-1200 CPU 1212C is a compact, high-performance programmable logic controller designed for small to medium-scale automation tasks requiring relay output switching. Featuring a DC/DC/Relay power supply and onboard I/O configuration with 8 digital inputs (24V DC), 6 relay outputs (2A per channel), and 2 analog inputs (0-10V), this CPU offers a highly integrated solution for machine control, conveyor systems, and OEM equipment where isolated AC/DC load switching is required.

Core Engineering Highlights:
8 digital inputs (24V DC) | 6 relay outputs (2A per channel) | 2 analog inputs (0-10V) | 100 KB work memory / 2 MB load memory | 0.08 µs bit processing | PROFINET interface (1 port) | 24V DC supply (20.4–28.8V) | 1,000 mA backplane bus current | IP20 | –20°C to +60°C operating | Firmware V4.7

Key Features:

• Original New Siemens 6ES7212-1HE40-0XB0 CPU

• 8 onboard digital inputs (24V DC, sink/source configurable)

• 6 onboard relay outputs (2A per channel, 5–250V AC / 5–30V DC)

• 2 onboard analog inputs (0-10V DC, 10-bit resolution)

• 100 KB integrated work memory and 2 MB load memory

• 0.08 µs bit processing time for fast program execution

• PROFINET interface (RJ45) for programming and HMI communication

• 24V DC power supply (20.4–28.8V range), reverse polarity protected

• Up to 1,000 mA backplane bus current for signal modules

• Up to 2 signal modules (SM), 1 signal board (SB), 3 communication modules (CM)

• Maintenance-free data backup without battery

• Real-time hardware clock with 480-hour backup

• 24V encoder supply: L+ minus 4V DC min.

• Relay outputs provide electrical isolation between control and field circuits

• Compact 100 x 75 x 75 mm form factor for space-saving control cabinets

• IP20 protection for control cabinet installation

• Interference immunity against high-frequency radiation per IEC 61000-4-6

Applications:

• Small to medium machine automation and control

• Conveyor systems and material handling equipment

• Packaging machinery and assembly lines

• OEM equipment requiring isolated AC/DC load switching

• Pump, fan, and HVAC control systems

• Factory automation and process monitoring

Technical Specifications:

• Catalog Number: 6ES7212-1HE40-0XB0

• Product Type Designation: CPU 1212C DC/DC/relay

• Product Family: SIMATIC S7-1200

• Firmware Version: V4.7

Supply Voltage:

Current Consumption:

Memory & Performance:

Onboard I/O:

Backplane & Power:

Expansion & Communication:

Physical & Environmental:

System Compatibility:

• Siemens SIMATIC S7-1200 series architecture

• TIA Portal engineering framework (STEP 7 V11 SP2 or higher / V20 or higher)

• S7-1200 signal modules (SM), signal boards (SB), and communication modules (CM)

• SIMATIC Memory Card for program and data storage (optional)

• PROFINET networks

• HMI devices via integrated PROFINET interface

Typical System Architecture:
24V DC Power Supply
↓
6ES7212-1HE40-0XB0 CPU 1212C (DC/DC/Relay)
│
├── Onboard I/O: 8 DI / 6 DO (relay, 2A) / 2 AI (0-10V)
├── PROFINET Interface → HMI / SCADA / Programming
│
├── Up to 2 Signal Modules (SM) → Digital / Analog I/O Expansion
├── Up to 1 Signal Board (SB) → Additional I/O on CPU
├── Up to 3 Communication Modules (CM) → RS232 / RS485 / PROFIBUS
│
↓
SIMATIC Memory Card (optional) → Program Backup / Data Logging

Related Products:

• 6ES7212-1AE40-0XB0 – CPU 1212C DC/DC/DC (transistor outputs version)

• 6ES7212-1BE40-0XB0 – CPU 1212C AC/DC/Relay (AC power supply)

• 6ES7214-1HG40-0XB0 – CPU 1214C DC/DC/Relay (higher I/O count, 14DI/10DO/2AI)

• 6ES7222-1HF32-0XB0 – SM 1222 Digital Output Module (8DO relay)

• 6ES7231-4HD32-0XB0 – SM 1231 Analog Input Module (4AI)

• 6ES7274-1XF30-0XA0 – SIMATIC Memory Card for S7-1200

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Siemens, SIMATIC, S7-1200, and TIA Portal are trademarks of Siemens AG.