SIMATIC S7-1200 CPU 1211C AC/DC/RELAY

· ·       CPU 1211C AC/DC/Relay

·       6ES7 211-1BE40-0XB0

Key Features of CPU 1211C AC/DC/Relay

1. Integrated I/O & Power Supply

• 6 digital inputs (24V DC, sink/source)
• 4 relay outputs (supports AC/DC loads, up to 2A per point)
• AC power supply (85–264V AC, 47–63 Hz)
• No analog I/O onboard (requires expansion modules)

2. Performance & Memory

• 50 KB work memory (for program and data)
• 2 MB load memory (for project storage)
• Execution speed: ~0.1 ms per 1,000 binary instructions
• Onboard real-time clock (RTC) for time-based operations

3. Communication Interfaces

• PROFINET (1x RJ45 port) for:
• Programming (TIA Portal)
• HMI connectivity (KTP, TP, Comfort Panels)
• PROFINET IO communication (as controller or device)
• No built-in RS485/RS232 (requires CM 1241 for serial communication)

4. Expandability

• Supports up to 3 signal modules (SM) or communication modules (CM/CP)
• No built-in analog I/O (requires SM 1231 for AI / SM 1232 for AO)

5. Programming & Diagnostics

• Programmable with TIA Portal (STEP 7 Basic/Professional)
• Web server functionality for remote diagnostics
• LED status indicators (RUN/STOP, ERROR, MAINT, etc.)

6. Typical Applications

• Motor control (contactors, starters)
• Lighting control (switching AC loads)
• HVAC systems (fan, pump control)
• Small industrial machines with relay-based logic