Overview
The Siemens 6ES7212-1BD30-0XB0 SIMATIC S7-1200 CPU 1212C is a compact programmable logic controller designed for small- to medium-scale automation and control applications. This AC/DC/relay-powered CPU integrates onboard digital and analog I/O, eliminating the need for separate I/O modules in many installations. With PROFINET connectivity built-in, the CPU 1212C supports networked communication across industrial environments, making it ideal for integration into larger control systems.
Key Features
- Compact Design: Space-efficient form factor (90 × 100 × 75 mm) suitable for confined panel installations
- Integrated Onboard I/O: 8 digital inputs (24 V DC), 6 relay outputs (2 A each), and 2 analog inputs (0–10 V DC)
- AC/DC/Relay Power Supply: Flexible power input range of AC 85–264 V at 47–63 Hz
- PROFINET Interface: Built-in Ethernet connectivity for device communication and remote diagnostics
- 25 KB User Memory: Sufficient program and data storage for typical control logic
- TIA Portal Compatible: Program via SIEMENS’ unified engineering environment
Technical Specifications
- Part Number: 6ES7212-1BD30-0XB0
- Product Series: SIMATIC S7-1200
- CPU Model: CPU 1212C (AC/DC/Relay variant)
- Input Power Supply: AC 85–264 V, 47–63 Hz
- Digital Inputs: 8 × 24 V DC
- Digital Outputs: 6 × relay, 2 A per output
- Analog Inputs: 2 × 0–10 V DC
- Program/Data Memory: 25 KB work memory; 1 MB load memory; 2 KB retentive memory
- 5 V Supply Current: 1000 mA max. (CPU); 300 mA max. (sensor power)
- Power Consumption: 11 W typical
- Dimensions: 90 × 100 × 75 mm (W × H × D)
- Weight: 425 g (0.4 kg stated in some sources)
- Communication Protocol: PROFINET, EtherNet/IP capable
- Module Expansion: Up to 2 signal modules, 1 signal board, 3 communication modules
- Operating Temperature: 0–60 °C (typical industrial range)
Typical Applications
The CPU 1212C is widely deployed in:
- Small production line control and sequencing
- Process automation with integrated analog monitoring
- Machine tool control and diagnostics
- HVAC, pumping, and packaging systems
- Remote monitoring via PROFINET or Ethernet
- Retrofit and spare-unit replacements for existing S7-1200 installations
Compatibility & Replacements
Compatible With
- SIEMENS TIA Portal (engineering and programming)
- SIMATIC WinCC HMI software
- SIMATIC S7-1200 signal modules and communication cards
- PROFINET-enabled field devices and gateways
- SIMATIC Memory Card (optional, for extended storage)
- Third-party PROFINET/EtherNet/IP-compatible networks
Replaces / Drop-In Replacement For
- Earlier versions of the S7-1200 CPU 1212C (limited compatibility—verify before ordering)
- Siemens 6ES7212-1BE40-0XB0 (newer AC/DC/relay variant with expanded memory)
Works With
- Programming: TIA Portal v13 and later, STEP 7
- Communication Protocols: PROFINET, EtherNet/IP, Modbus TCP/IP (via gateway)
- HMI & Visualization: SIMATIC WinCC, KTP mobile panels, third-party HMI systems
- Drive Integration: SIEMENS SINAMICS drives via PROFINET
- Distributed I/O: SIMATIC ET 200 remote I/O stations
