⚙️ Product Overview
The Siemens SIMATIC S7-1200 CPU 1211C AC/DC/RLY is a compact and cost-effective PLC designed for small automation tasks and OEM applications. As a compact (C) CPU, it integrates the CPU, digital inputs, and relay digital outputs into a single unit—reducing control panel size and overall system cost.
This CPU operates with an AC power supply, accepts 24 V DC digital inputs, and provides relay outputs, making it ideal for direct switching of loads without additional interposing relays. With built-in PROFINET (Ethernet) communication and full support in TIA Portal, it offers easy programming, fast commissioning, and reliable diagnostics.
The CPU 1211C AC/DC/RLY is widely used in small machines, pumps, compressors, HVAC systems, lighting control, conveyors, and basic industrial automation, where simplicity and Siemens reliability are essential.
Product Specification Table (Copy-Paste Ready)
| Parameter | Specification |
|---|
| Product Brand | Siemens |
| Product Series | SIMATIC S7-1200 |
| Product Type | Compact PLC CPU |
| Model | CPU 1211C DC/DC/DC |
| Part Number | 6ES7211-1AE40-0XB0 |
| Power Supply | 85–264 V AC |
| Digital Inputs | 6 × 24 V DC |
| Digital Outputs | 4 × Relay Outputs |
| Analog Inputs | 2 × Analog Inputs (0–10 V) |
| Program Memory | 50 KB |
| Data Memory | 50 KB |
| Load Memory | Integrated |
| Communication Interface | PROFINET (Ethernet) |
| Integrated Safety | No |
| Programming Software | TIA Portal |
| Supported Languages | LAD, FBD, SCL (Structured Text) |
| Mounting Type | DIN Rail |
| Typical Use | Small Machines, HVAC, Pumps, OEM Panels |
| Condition | New & Original |
S7-1200 PLC CPU Model Name, | Description, | Siemens Part Number (Order Code) |
|---|
| CPU 1211C DC/DC/DC | Entry-level compact PLC with integrated I/O | 6ES7211-1AE40-0XB0 |
| CPU 1211C AC/DC/Relay | AC supply, relay outputs variant | 6ES7211-1BE40-0XB0 |
| CPU 1211C DC/DC/Relay | DC power, relay outputs | 6ES7211-1HE40-0XB0 |
| CPU 1212C DC/DC/DC | Standard performance compact PLC | 6ES7212-1AE40-0XB0 |
| CPU 1212C AC/DC/Relay | AC version with relay outputs | 6ES7212-1BE40-0XB0 |
| CPU 1212C DC/DC/Relay | DC power with relay outputs | 6ES7212-1HE40-0XB0 |
| CPU 1214C DC/DC/DC | Mid-range compact CPU | 6ES7214-1AG40-0XB0 |
| CPU 1214C AC/DC/Relay | Mid-range CPU with AC/relay outputs | 6ES7214-1BG40-0XB0 |
| CPU 1214C DC/DC/Relay | Mid-range DC with relay outputs | 6ES7214-1HG40-0XB0 |
| CPU 1215C DC/DC/DC | Higher-performance CPU | 6ES7215-1AG40-0XB0 |
| CPU 1215C AC/DC/Relay | Higher performance with AC/relay | 6ES7215-1BG40-0XB0 |
| CPU 1215C DC/DC/Relay | Higher performance DC with relay | 6ES7215-1HG40-0XB0 |
| CPU 1217C DC/DC/DC | Top performance compact CPU | 6ES7217-1AG40-0XB0 |
