Product Introduction
With 50 KB work memory and a compact footprint, the Siemens 6ES7211-1AE40-0XB0 CPU 1211C delivers reliable performance for small to medium automation tasks. This DC/DC/DC unit features 6 digital inputs, 4 digital outputs, and 2 analog inputs, making it a cost-effective core for your control system. Part of the SIMATIC S7-1200 family, the 6ES7211-1AE40-0XB0 is engineered for long-term value and reduced total cost of ownership.
Technical Specifications
The Siemens 6ES7211-1AE40-0XB0 offers essential specifications for precise control:
| Parameter |
Value |
| Supply Voltage |
DC 20.4 V to 28.8 V |
| Digital Inputs |
6 (24 V DC) |
| Digital Outputs |
4 (24 V DC, 0.5 A) |
| Analog Inputs |
2 (0–10 V) |
| Work Memory |
50 KB |
| Load Memory |
1 MB integrated |
| PROFINET Interface |
1 port, 100 Mbit/s |
| Power Loss |
8 W typical |
| Dimensions (WxHxD) |
90 x 100 x 75 mm |
These specs ensure reliable operation in demanding industrial environments, contributing to lower downtime and energy savings.
Installation & Setup Guidance
Mount the Siemens 6ES7211-1AE40-0XB0 on a standard DIN rail or use wall mounting (with 2 g vibration resistance). Wire the 24 V DC power supply to the dedicated terminals, observing reverse polarity protection. Connect digital inputs (sink/source) and analog inputs (twisted shielded cable, max 100 m). Configure the CPU using STEP 7 V14 or higher via the PROFINET port. The compact design allows up to 3 communication modules and 1 signal board for expansion.
Compatibility & Integration
The 6ES7211-1AE40-0XB0 integrates seamlessly into PROFINET networks as an IO Controller or Device. It supports open IE communication (TCP/IP, ISO-on-TCP, UDP) and MODBUS. Use CM 1243-5 for PROFIBUS or CM 1243-2 for AS-Interface. The web server enables remote monitoring. This versatility reduces integration costs and future-proofs your system.
Selection Guide & Purchasing Advice
Before purchasing, verify your power supply requirements (20.4–28.8 V DC) and memory needs (50 KB work memory). The 6ES7211-1AE40-0XB0 is ideal for standalone or distributed control. For genuine parts and reliable supply, consider PLC Source PRO as your trusted source. Always check firmware compatibility (V4.2) with your engineering software.