About Siemens Simatic S7-1200 CPU 1211C DC DC DC

The Siemens Simatic S7-1200 CPU 1211C DC DC DC is a versatile programmable logic controller suitable for a variety of industrial applications. With a frequency range of 47-63 Hertz (Hz) and a rated voltage of 380-480 Volt (V), this PLC offers reliable performance. It features a Touchscreen HMI display type for user-friendly operation and has a protection level of IP20 to ensure durability in challenging environments. Backed by a 1-year warranty, this PLC provides peace of mind for your automation needs. 

Data Sheet 6ES7211-1AE40-0XB0

SIMATIC S7-1200 CPU 1211C (DC/DC/DC)

Onboard I/O: 6 DI (24 V DC), 4 DO (24 V DC), 2 AI (010 V)
Power supply: 20.428.8 V DC
Program/Data memory: 75 KB

General Information

• Product type: CPU 1211C DC/DC/DC

• Firmware version: V4.7

• Engineering software: STEP 7 V20 or higher

Supply Voltage

• Rated value: 24 V DC

• Range: 20.4 28.8 V DC

• Reverse polarity protection: Yes

Load voltage L+

• 24 V DC (20.4 28.8 V DC)

Input Current

• Rated consumption: 300 mA (CPU only)

• Max consumption: 900 mA (with expansion modules)

• Inrush current: 12 A at 28.8 V DC

• It: 0.5 As

Output Current

• Backplane bus (5 V DC): 750 mA max

Encoder Supply

• 24 V supply: L+ minus 4 V (min)

Power Loss

• Typical: 8 W

Memory

Work memory

• 75 KB integrated

Load memory

• 1 MB integrated

• Expandable with SIMATIC Memory Card

Backup

• Present

• Maintenance-free

• No battery required

CPU Processing Times

• Bit operations: 0.08 s

• Word operations: 1.7 s

• Floating point: 2.3 s

CPU Blocks

• No specific block limit; limited only by available RAM

• OBs: Limited only by RAM

Data Areas

• Retentive memory: 14 KB

• Flags: 4 KB

• Local data:

  • Priority class 1: 16 KB

  • Classes 226: 6 KB

Process Image

• Inputs: 1 KB adjustable

• Outputs: 1 KB adjustable

Hardware Configuration

• Max modules: 3 Communication Modules, 1 Signal Board

Clock

• Real-time hardware clock

• Backup time: 480 hours

• Max deviation: 60 s/month at 25C

Digital Inputs (DI)

• Quantity: 6

• Technological functions: All 6 usable (HSC)

• Input voltage:

  • 0: 5 V

  • 1: 15 V

• Input current: 4 mA typical

• Input delay:

  • Programmable (0.1 s to 20 ms)

• Cable length:

  • Shielded: 500 m (50 m for tech functions)

  • Unshielded: 300 m

Digital Outputs (DO)

• Quantity: 4 (all high-speed 100 kHz PTO)

• Max current: 0.5 A

• Output voltage:

  • 0: 0.1 V

  • 1: 20 V

• Output delay:

  • 01: 1 s

  • 10: 5 s

• No relay outputs

Cable length

• Shielded: 500 m

• Unshielded: 150 m

Analog Inputs (AI)

• Quantity: 2

• Range: 010 V

• Input resistance: 100 k

• Resolution: 10-bit

• Conversion time: 625 s

• Cable length (shielded): 100 m

Interfaces

PROFINET

• 1 RJ45

• Isolated: Yes

• Auto-negotiation/crossing: Yes

• Speed: 100 Mbit/s

Supported Protocols

• PROFINET IO Controller / Device

• SIMATIC communication

• Open IE (TCP/IP, ISO-on-TCP, UDP)

• Web server (user-defined pages supported)

• OPC UA Server (license required)

• Modbus

• PROFIBUS (via CM module)

• AS-Interface (via CM 1243-2)

OPC UA

• Max sessions: 10

• Max subscriptions/session: 5

• Security:

  • None, Basic128Rsa15, Basic256Rsa15, Basic256Sha256

Connections

• Total connections: 68 max

• PG: 4

• HMI: 18

• S7: 14

• Web: 30

• OPC UA: 10

Diagnostics & Commissioning

• LEDs: RUN/STOP, ERROR, MAINT

• Diagnostic buffer: Yes

• Trace:

  • 2 traces, 512 KB each

• Forcing: Yes

Integrated Functions

• Counters: 6 (100 kHz)

• Frequency measurement: Yes

• Position control: 8 axes

• PTO: 4 outputs (100 kHz)

• PID control: Yes

Protection & EMC

• Protection: IP20

• Electrostatic discharge:

  • Air: 8 kV

  • Contact: 6 kV

• EMC: EN 55011 Class A (Class B with measures)

Approvals

• CE, UL, cULus, FM, RCM, KC

• Marine approvals

• Hazardous area approvals

Environmental Data

• Operating temperature: 20C to +60C

• Storage temperature: 40C to +70C

• Humidity: 95% (no condensation)

• Altitude: up to 5000 m (derating above 2000 m)

• Vibration: 2 g wall-mount / 1 g DIN rail

• Shock: 15 g

Dimensions & Weight

• Width: 90 mm

• Height: 100 mm

• Depth: 75 mm

• Weight: ~370 g 

Technical Details